Yaskawa iQpump Micro AC Drive Compact Intelligent Pump Controller. User Manual (2014)

4.6 Using the Optional HOA Keypad

u Menu Structure for HOA Keypad

QMONI: Use F1/F2

MENU: Use UP/DWN

<1>

MENU: Use UP/DWN

- MODE -

DRV Rdy

- MODE -

DRV Rdy

Auto Setpoint

ANF Timer

U5-99= 0.0PSI

U1-99= 0.0sec

U1-02= 0.00Hz

LSEQ

U1-02= 0.00Hz

LSEQ

U1-91= 0.0PSI

LREF

U1-91= 0.0PSI

LREF

<-MONITOR->

- MODE -

DRV Rdy

-MONITR-

DRV Rdy

Monitor Menu

Frequency Ref

U1-01= 0.00Hz

U1-01=0.00Hz

U1-02= 0.00Hz

LSEQ

-MONITR-

DRV

Rdy

U1-02= 0.00Hz

LSEQ

U1-91= 0.0PSI

LREF

Monitor

U1-91= 0.0PSI

LREF

Home

FWD

-01= 0.00Hz

Home FWD

U1-02= 0.00Hz

LSEQ

U1-91= 0.0PSI

LREF

ome

FWD

-MONITR-

DRV Rdy

- MODE - PRG RDY

Output Freq

Modified Consts

U1-02= 0.00Hz

<4>

Appl (001)

U1-02= 0.00Hz

LSEQ

-MONITR-

DRV Rdy

Std (029)

U1-91= 0.0PSI

LREF

Fault Trace

Home

FWD

DATA

U2 -01= -----

Home

FWD

U2-02= oPr

LSEQ

U2-03= 0.00Hz

LREF

ome

FWD

- MODE -

PRG

Pump Quick Setup

Home

FWD

Initial Display <5>

- MODE -

PRG

Programming

XXXV, XXXHP

XXXA

iQpump

YASKAWA

CIMR-PWXXXXXXXX

Home

FWD

<6>

- MODE - PRG

Auto-Tuning

AUTO

Home FWD

Figure 4.9 HOA Keypad Menu and Screen Structure

<1> The display cycles between these three displays on the initial startup screen and the Quick Monitor screens.

<2> Pressing “AUTO” or “HAND” will start the motor.

<3> Drive cannot operate motor.

<4> Flashing characters are shown with white letters on gray background. (Example: 0 )

<5> The Frequency Reference appears after the initial display that shows the product name.

<6> The information that appears on the display will vary depending on the drive model.

4.6 Using the Optional HOA Keypad

n Home Quick Monitor Display (Optional HOA Keypad)

The Home Quick Monitor provides an easily accessible preset group of monitors that are frequently used during operation.

Figure 4.10 Home Quick Monitor Screen

The following monitors are available via the Quick Monitor:

Monitor

Name

Monitor

Name

U1-01

Frequency Reference

U1-11

Output Terminal Status

U5-99

Auto Setpoint

U1-13

Terminal A1 Level

U1-02

Output Frequency

U1-14

Terminal A2 Level

U1-03

Output Current

U1-25

CPU 1 SW Number

U1-06

Output Voltage

U4-01

Drive Elapsed Time

U1-07

DC Bus Voltage

U9-02

iQ Network Activity

U1-08

Output Power

U1-99

Anti-No-Flow Timer

U1-10

Input Terminal Status

u Changing Parameter Settings or Values

This example explains changing C1-02 (Deceleration Time 1) from 10.0 seconds (default) to 20.0 seconds.

Note:

During serial communication writing, if a parameter change is also attempted via the HOA keypad, a “BUSY - WRITE PROTECTED”

message will display. Parameter change will not be possible from the HOA keypad until an Enter command is received via the serial

communication to finish the serial writing process.

Step

Display/Result

- MODE -

DRV Rdy

Auto Setpoint

U5-99= 0.0PSI

Turn on the power to the drive. The initial display appears.

U1-02= 0.00Hz

LSEQ

U1-91= 0.0PSI

LREF

<-MONITOR->

- MODE -

PRG

Programming

Press

until the Parameter Setting Mode screen appears.

Home

FWD

-PRMSET-

PRG

Initialization

A1-00=

Press

to enter the parameter menu tree.

Select Language

Home

FWD

DATA

-PRMSET-

PRG

Basic Setup

C1-01=

20.0 sec

Press

to select the C parameter group.

Accel Time 1

Home

FWD

DATA

4.6

Using the Optional HOA Keypad

Step

Display/Result

-PRMSET- PRG

el Time 1

Press

two times.

-PRMSET-

PRG

Decel Time 1

C1-02=

10.0sec

(0.0~6000.0)

Press

to select parameter C1-02.

“10.0 sec”

Home FWD DATA

-PRMSET-

PRG

Decel Time 1

C1-02= 0010.0sec

Press

to view the current setting value (10.0 s). The leftmost digit flashes.

(0.0~6000.0)

“10.0 sec”

Home

FWD

-PRMSET-

PRG

Decel Time 1

C1-02=0010.0sec

(0.0~6000.0)

Press

until the desired number is selected. “1” flashes.

“10.0 sec”

Home

FWD

-PRMSET-

PRG

Decel Time 1

C1-02=0020.0sec

Press

and enter 0020.0.

(0.0~6000.0)

“10.0 sec”

Home

FWD

10.

Press

to confirm the change.

Entry Accepted

-PRMSET-

PRG

Decel Time 1

C1-02=

20.0sec

11.

The display automatically returns to the screen shown in Step 6.

(0.0~6000.0)

“10.0 sec”

Home FWD DATA

- MODE -

DRV Rdy

Auto Setpoint

U5-99= 0.0PSI

12.

U1-02= 0.00Hz

Press

as many times as necessary to return to the initial display.

LSEQ

U1-91= 0.0PSI

LREF

<-MONITOR->

u Verifying Parameter Changes: Modified Constants Menu

The Modified Constants Menu lists parameter changes as a result of using an Application Preset (A1-03) or by making manual

parameter changes (including Auto-Tuning). The Application Preset changes are contained in the (Appl) folder while all other

changes appear in the (Std) folder. The Modified Constants Menu helps determine which settings have been changed, and is

particularly useful when replacing a drive. If no settings have been changed in either folder, the Modified Constants folders

will read “None Modified”. The Modified Constants Menu also allows users to quickly access and re-edit any parameter

settings that have been changed.

Note:

The Modified Constants Menu will not display parameters from the A1 group (except for A1-02) or E5-01 even if those parameters have

been changed from their default settings.

The following example details where the drive was initialized to Pump Down Mode (A1-03 = 6009) and then three additional

parameters were changed including the deceleration time. The example shows how to then change the deceleration time from

14.0 s to 24 seconds.

4.6

Using the Optional HOA Keypad

Main Menu

- MODE -

PRG

Pump Quick Setup

Modified Type Selection

Parameter View

Home

FWD

Parameter changed after

Initializing using A1-03

-MODE-

PRG RDY

- MODE -

PRG RDY

-VERIFY-

PRG

Modified Consts

Output Level Sel

Modified Consts

Appl (005)

>> Appl (005)

b5-09=

*1*

Std (003)

Inverse Acting

Std (003)

Home

DATA

Home

DATA

Home

(idle)

- MODE -

DRV RDY

- MODE -

PRG RDY

Monitor Menu

Double arrows

Modified Consts

U1-01=

14.00 Hz

indicate selection

>> Appl (005)

U1-02=

0.00Hz

U1-03=

0.00A

Information about

Std (003)

Home

FWD

the selection is

--changes after

scrolled

Home

DATA

Parameter changed from

factory default setting

- MODE -

PRG RDY

-VERIFY-

PRG

Modified Consts

Ref Source 1

Appl (005)

b1-01=

*1*

Std is now

selected

>> Std (003)

Analog Input

Home

DATA

Home

Steps to change parameter C1-02, Deceleration Time, from 14.0 to 24.0 seconds:

Step

Display/Result

- MODE -

DRV Rdy

Auto Setpoint

U5-99= 0.0PSI

Turn on the power to the drive. The initial display appears.

U1-02= 0.00Hz

LSEQ

U1-91= 0.0PSI

LREF

<-MONITOR->

- MODE - PRG RDY

Modified Consts

Appl (005)

Press

until the display shows the top of the Modified Constants Menu.

Std (003)

Home FWD DATA

- MODE -

PRG

Modified Consts

Press

then

to select standard (Std) parameters that have been edited from their

Appl (005)

>> Std (003) <<

original default settings.

Home FWD DATA

- VERIFY - PRG Rdy

Press

to enter the list of standard parameters that have been edited from their original

Accel Time 1

default settings.

C1-02

= 14.0sec

(0.0~6000.0)

“10.0sec”

If parameters other than C1-02 have been changed, use

to scroll until C1-02

Home

FWD

appears.

- VERIFY - PRG

Rdy

Accel Time 1

C1-01=0014.0sec

Press

to access the setting value. Left digit flashes.

(0.0~6000.0)

“10.0sec”

Home

FWD

4.7 Pump Application Presets

4.7

Pump Application Presets

The following sections list the parameters affected by the different Application Presets.

u Parameters Set Depending on A1-03 Setting

The following table shows the parameters that are set depending on the A1-03 initialization:

A1-03 = 6008

A1-03 = 6009

A1-03 = 7770

A1-03 = 7771

(A1-06 = 8)

(A1-06 = 9)

(A1-06 = 1)

(A1-06 = 2)

Pressure Control

Pump Down Level

General Purpose

Sub Mtr GP Oper

Parameter

Value

Parameter

Value

Parameter

Value

Parameter

Value

b5-09

b1-01

b5-01

b5-39

b1-02

H1-06

P1-02

b5-01

H1-07

P2-01

C1-01

25.0 sec

H2-02

P2-23

0.00%

C1-02

25.0 sec

H2-03

H1-06

o1-06

H1-07

P1-05

0 sec

H2-02

d1-01

40.00 Hz

H2-03

H3-02

H3-10

L5-01

L5-04

180.0 sec

o1-06

P1-05

0 sec

P1-06

0.0 Hz

P4-12

0.0 Hz

P4-17

0.0 min

P5-02

0.0 Hz

u Parameters Displayed Depending on A1-06 Setting

The following table shows which parameters are shown on the Pump Quick Setup menu depending on the A1-06 selection:

A1-03 = 6008

A1-03 = 6009

A1-03 = 7770

A1-03 = 7771

(A1-06 = 8)

(A1-06 = 9)

(A1-06 = 1)

(A1-06 = 2)

Pressure Control

Pump Down Level

General Purpose

Sub Mtr GP Oper

E2-01

b1-01

E2-01

E2-04

b1-02

E2-04

P1-03

P1-02

C1-01

d1-01

Q1-01

P1-03

C1-02

P1-06

P1-04

Q1-01

E2-01

P4-10

P1-06

P1-04

E2-04

P5-04

P4-10

P1-06

L5-01

P5-04

P2-02

L5-04

P4-10

P1-06

P5-04

4.8 iQpump Presets and Functions

4.8

iQpump Presets and Functions

Table 4.8 iQpump Presets and Functions

Feature Name

Preset or Function

Page

Pump Down Level Control

Preset

General Purpose Mode

Preset

Low City or Low Suction Inlet Pressure

Function

Current Limit

Function

Speed Follower Deceleration Time Switchover

Function

Software (MEMOBUS) Multiplexing Setup

Function

Simple Duplex System Application

Function

Multiplexing Stop History

Function

100

u iQpump Presets

n Pump Down Level Control Application Preset

This preset allows the drive to regulate the depth of water in a tank or other vessel that is being filled by an external source.

A feedback device that measures water depth is wired to the drive. A PI-control process loop will then modulate the pump

speed to pump water out the tank to keep the water depth the setpoint level (pump out at the recharge rate). The drive controller

has an application preset to simplify the start up and control of this application.

• System units are in feet (P1-02 = 6).

• Feedback device scaling (P1-03). The feedback device scaling must be entered into the drive for proper control.

• Minimum pump speed (P1-06). Most pumps cannot be run below a certain speed or cavitation can occur.

• Number of Motor Poles (E2-04). The default is for a 2-pole motor.

• Sleep Function. The drive controller will sleep when the system demand is low and awaken when demand returns.

Required Control Wiring

Most depth level transducers have current-based feedback (4-20 mA). The A2 terminal of the drive is preset for 4-20 mA and

pre-programmed for PID feedback (H3-10 = B).

Start Up Procedure

1. Set parameter A1-03 to 6009 (Pump Down Level) to pre-set parameter values for this application.

2. Set the motor-rated current in parameter E2-01. This information can be found on the motor nameplate or specification

sheet.

3. Set the number of motor poles in parameter E2-04 (2-pole motors have a rated RPM of slightly less than 3600 RPM;

4-pole motors have a rated RPM of slightly less than 1800 RPM). This information can be found on the motor

nameplate or specification sheet.

4. Set the feedback device scaling in parameter P1-03. Check the sensor nameplate or specification sheet. For example,

if the device outputs 20 mA at 14.50 ft of water depth, the set P1-03 to 14.50. The drive controller will automatically

scale all associated parameters and monitors. Monitor U1-91 (Pump Feedback) will display the measured water depth

in feet. The drive has a High Feedback Fault set in parameter P1-11. Make sure that P1-11 is appropriately set for

sensor scaling in P1-03.

5. Set the desired water depth level in parameter Q1-01 (PID setpoint). This is desired water depth that the drive will

regulate the pump speed around. To quickly access this parameter, press the HOME key and then the ENTER key.

The U1-99 monitor on the home screen displays the Q1-01 PID setpoint.

6. Set the minimum speed that the pump can be run in parameter P1-06. The default is 40 Hz. This information can be

found on the pump specification sheet.

7. The default setting does not allow the drive to automatically restart after power loss if the drive was running at the

time of power loss. Set P4-10, AUTO Mode Operator Run Power Down Storage, to 1 to enable this feature.

8. Press the AUTO key to start the drive with PID control (water depth control). Press the OFF key to stop the drive.

9. The pump can be run in HAND (LOCAL) mode for maintenance purposes by pressing the HAND key while the drive

is stopped. The HAND key acts as a start button. Press the OFF button to stop the drive. Press AUTO to return the

drive to PID control. The HAND speed reference can be set in P5-02 (Hand Reference 1). Disable the HAND key by

setting P5-04 to 0 (disabled).

10.Configure the sleep function. The pump can be programmed to shut off or “sleep” if the water falls below the depth

set in parameter P2-02 (Sleep Level). The controller will monitor the water depth feedback signal and wake up when

the water depth rises above the setting in parameter P1-04 (Start/Draw Down Level). Logically, set the Sleep Level

4.8 iQpump Presets and Functions

(P2-02) lower than the PID setpoint and set the Draw Down Level (P1-04) slightly above the PID setpoint to prevent

the drive from waking up until the water exceeds the desired depth setting. Sleeping helps the drive save energy and

mechanical wear. When P1-04 is set to 0 (default), the sleep function is disabled.

Related Parameters

No.

Parameter Name

Setting Values

Default: 2

A1-01

Access Level Selection

Range: 0 to 3

Default: 0

A1-03

Initialize Parameters

Range: 0 to 5550; 6008, 6009, 7770, 7771

Default: Depends on o2-04

E2-01

Motor Rated Current

Min.: 10% of drive rated current

Max.: 200% of drive rated current

Default: 2

E2-04

Number of Motor Poles

Min.: 2

Max.: 48

Default: 145.0 PSI

P1-03

Feedback Device Scaling

Min.: 0.1

Max.: 6000.0

Default: 155.0 PSI

P1-11

High Feedback Level

Min.: 0.0

Max.: 6000.0

Default: 40.0 Hz

P1-06

Minimum Pump Speed

Min.: 0.0

Max.: [E1-04]

Default: 0.0 PSI

P1-04

Start / Draw Down Level

Min.: -999.9

Max.: 999.9

Default: 0.0 Hz

P2-02

Sleep Level

Min.: 0.0

Max.: 6000.0

Default: 0

P4-10

AUTO Mode Operator Run Power Down Storage

Range: 0, 1

Default: 40.0 Hz

P5-02

HAND Speed Reference 1

Min.: 0

Max.: [E1-04]

Default: 1

P5-04

HAND Key Function Selection

Range: 0, 1

Default: 0.0

Q1-01

PID Controller Setpoint 1

Min.: 0.0

Max.: 6000.0

U1-99

Anti-No-Flow Timer

No signal output available

4.8 iQpump Presets and Functions

n General Purpose Mode Application Preset

The purpose of this mode is to allow the drive controller to run a motor at a set speed without the PID process loop. This preset

is designed to simplify using the drive for applications other than pumping control. The default settings call for the frequency

reference to be an analog input and the run command to come from the terminal strip via a maintain contact closure. The PID

loop is disabled and no process feedback is required.

Required Control Wiring

No additional control wiring is required when the drive controller is at its default settings.

Start Up Procedure

1. Set parameter A1-03 to 7770 (General Purpose Mode) to pre-set parameter values for this application.

2. Set the source of the frequency reference for the drive controller in parameter b1-01. The default setting is from the

terminal strip via a 0 to 10 V analog signal wired into terminal A1.

3. Set the source of the Run Command for the drive controller in parameter b1-02. The default setting is from the terminal

strip via a maintained contact closure.

4. Set the Acceleration Time of the motor in parameter C1-01. This is the time to accelerate the motor from zero speed

to 60 Hz (E1-04, Maximum Output Frequency).

5. Determine the stopping method of the motor. The default setting is coast to stop. To ramp the motor to a stop, set

b1-03 to 0 and then set the motor deceleration time in parameter C1-02. This is the time to stop the motor from to 60

Hz (E1-04, Maximum Output Frequency) to zero speed.

6. Set the motor-rated current in parameter E2-01. This information can be found on the motor nameplate or specification

sheet.

7. Set the number of motor poles in parameter E2-04 (2-pole motors have a rated RPM of slightly less than 3600 RPM;

4-pole motors have a rated RPM of slightly less than 1800 RPM). This information can be found on the motor

nameplate or specification sheet.

8. Determine whether the drive controller should attempt to reset itself after a fault. The default setting is disabled. The

function is turned on by setting 1 to 10 reset attempts in parameter L5-01 and the time between each reset in parameter

L5-04.

9. Set the minimum speed at which the motor can run in parameter P1-06. If the system has a minimum safe operation

speed, set it in P1-06. This will act as a lower limit of the frequency reference.

10.The motor can be run in HAND (LOCAL) Mode for maintenance purposes by pressing the HAND key while the drive

is stopped. The HAND key acts as a start button. Press the OFF button to stop the drive. Set P5-04 to 0 to disable

the HAND key. The default frequency reference is 0.0 Hz in HAND Mode. This can be changed in parameter P5-02.

The AUTO key has no effect with the default settings in the General Purpose Application Preset.

Related Parameters

No.

Parameter Name

Setting Values

Default: 0

A1-03

Initialize Parameters

Range: 0 to 5550; 6008, 6009, 7770, 7771

Default: 0

b1-01

Frequency Reference Selection 1

Range: 0 to 4

Default: 0

b1-02

Run Command Selection 1

Range: 0 to 3

Default: 1

b1-03

Stopping Method Selection

Range: 0 to 3

Default: 20.0 s

C1-01

Acceleration Time 1

Min.: 0.0

Max.: 6000.0

Default: 10.0 s

C1-02

Deceleration Time 1

Min.: 0.0

Max.: 6000.0

Default: 60.0 Hz

E1-04

Maximum Output Frequency

Min.: 40.0

Max.: 400.0

Default: Depends on o2-04

E2-01

Motor Rated Current

Min.: 10% of drive rated current

Max.: 200% of drive rated current

Default: 2

E2-04

Number of Motor Poles

Min.: 2

Max.: 48

4.8 iQpump Presets and Functions

No.

Parameter Name

Setting Values

Default: 5

L5-01

Number of Auto Restart Attempts

Min.: 0

Max.: 10

Default: 20.0 s

L5-04

Fault Reset Interval Time

Min.: 10.0

Max.: 3600.0

Default: 40.0 Hz

P1-06

Minimum Pump Speed

Min.: 0.0

Max.: [E1-04]

Default: 40.0 Hz

P5-02

HAND Reference

Min.: 0

Max.: [E1-04]

Default: 1

P5-04

HAND Key Function Selection

Range: 0, 1

u iQpump Functions

n Low City or Low Suction Inlet Pressure

This function is used with low suction inlet pressure switches on pressure booster systems for buildings that get their main

water supply from a municipality. This pressure switch enables and disables the pump system when the inlet supply is at a

low demand and when running the pump system in this condition will cause damage.

An inlet pressure switch is wired directly into the drive using one of the digital input terminals. If the pressure switch is active

and sufficient pressure is available, the drive system will operate normally. If the pressure switch indicates that incoming

pressure is too low, the drive will take the following actions:

• The drive will be forced into a sleep-like state (coast to stop).

• Any drives staged in multiplex mode will immediately coast to stop.

• The selected alarm “Low City Pressure”, “Low Suction Pressure”, or “Low Water In Tank” will be displayed (determined

by P4-24).

All drives will restart when sufficient pressure returns.

Required Control Wiring

Any one of the multi-function digital inputs (S1 to S7) must be wired and programmed with a low suction inlet pressure switch.

The appropriate terminal parameter (H1-oo) must be to set 73 (Low City Pressure). The action of the switch (normally open /

normally closed) is set in parameter P4-21.

Start Up Procedure

1. Set all other parameters required for the application such as PID control loop, sleep, motor, and I/O parameters.

2. Set one digital input for the low suction inlet pressure switch (H1-oo = 73). Wire the switch to this terminal.

3. Configure the terminal for a normally open / closed switch type using parameter P4-21.

4. Configure the delay times for activating and removing the alarm in parameters P4-23 and P4-24. This can be used to

stop the drive from frequent cycling when pressure varies greatly.

5. Select the alarm message that will be displayed when a Low City condition is detected using parameter P4-24. Options

include “Low Cty Pressure”, “Low Suction Pres”, and “Low Watr In Tank”.

Related Parameters, Faults, and Alarms

No.

Parameter Name

Setting Values

Default: 1

P4-21

Low City Input Select

Range: 0, 1

Default: 10 s

P4-22

Low City On-Delay Time

Min.: 1

Max.: 1000

Default: 5 s

P4-23

Low City Off-Delay Time

Min.: 0

Max.: 1000

Default: 0

P4-24

Low City Alarm Text

Range: 0 to 2

4.8 iQpump Presets and Functions

H1 Multi-Function Digital Input Settings

H1-oo

Function

Description

Setting

Indicates that sufficient or insufficient pressure is present on the inlet to the pump. Used mainly for pressure

Low City Press

booster situations.

Digital Operator Display

Minor Fault Name

Low City Pressure

(LCP)

Cause

Possible Solution

Insufficient pressure is present on the inlet

to the pump.

• Check pressure switch contact for correct operation.

Shown when P4-24 = 0 and when the digital

• Check control wiring to drive terminal strip from pressure switch contact.

input has been active (closed for P4-21 = 0,

or open for P4-21 = 1) for the time set in

• Check to make sure that suction pressure is present by means of a separate measuring device.

P4-22.

Digital Operator Display

Minor Fault Name

Low Suction Pressure

(LSP)

Cause

Possible Solution

Shown when P4-24 = 1 and when the digital input has been active (closed for P4-21 = 0, or open for P4-21

= 1) for the time set in P4-22.

Insufficient suction pressure is present.

The drive, if running, coasts-to-stop and does not run until the digital input has been inactive for the time

set in P4-22.

Digital Operator Display

Minor Fault Name

Low Water in Tank

(LWT)

Cause

Possible Solution

The water level in the tank is too low.

• Check pressure switch contact for correct operation.

Shown when P4-24 = 2 and when the digital

• Check control wiring to drive terminal strip from pressure switch contact.

input has been active (closed for P4-21 = 0,

• Check to make sure that suction pressure is present by means of a separate measuring device.

or open for P4-21 = 1) for the time set in

P4-22.

• Raise the water level.

n Current Limit

This function provides a current limit of the pump (motor). The function is designed to prevent long-term overload conditions

of the pump, especially if the motor and drive are oversized compared to the pump. The drive will attempt to limit the output

current by reducing the frequency reference. The frequency is reduced using an internal current PID regulator. When the

Current Limit function is active, the alarm "Current Limit Foldback" or “CUr” will be displayed on the digital operator keypad.

This function will only operate correctly when the drive is connected to a variable torque motor load such as a centrifugal

pump. More specifically, it will only operate if the load is such that output current increases as output frequency increases

(and vice-versa). The current limit function reduces the pump speed to just above the lower value between the minimum pump

speed (P1-06) or the minimum output frequency. If PID mode is enabled (b5-01 > 0), a special limit will be applied to the PID

integrator when output current limit is active to prevent integrator wind-up.

Current Limit Foldback

(CUr)

Start Up Procedure

1. Set all other parameters required for the application such as PID control loop, sleep, motor, and I/O parameters

2. Turn on the current limit function by setting Q3-01 to 1 (enabled). The default setting is 0 (disabled).

3. Set the desired current limit in Q3-02. This value should not exceed the motor, pump or drive ratings. This does not

change the motor (oL1) or drive (oL2) overload functions.

4. If desired, program a multi-function digital output (H2-oo) to 89 (Output Current Limit) to annunciate the alarm.

Related Parameters

No.

Parameter Name

Setting Values

Default: 0

Q3-01

Output Current Limit Select

Range: 0, 1

Default: 0.0 A

Q3-02

Current Limit

Min.: 0.0

Max.: 1000.0

4.8 iQpump Presets and Functions

H2 Multi-Function Digital Output Settings

H2-oo

Function

Description

Setting

Closed: Drive output speed is being limited due to the output current limit or the single phase foldback

Output I Limit

regulator.

The drive displays a message on the keypad when the drive is in output current limit.

Digital Operator Display

Message

Current Limit Foldback

Displayed when drive output speed is being limited due to the output current limit. Reduce the load or replace with

(CUr)

higher capacity drive.

n Speed Follower Deceleration Time Switchover

The iQpump Speed Follower will attempt to match the speed of the Lead Drive after the Lag Drive Fixed Speed Delay.

Consider a scenario wherein the system needs help from an idle drive to maintain system pressure. When the idle drive is

called to run, the difference between the setpoint and the feedback may be too small to make the drive accelerate faster. In

such cases, the system is configured with these settings:

• Set for Lag Drive Speed Follower

• Add Pump method is Frequency Reference

• Frequency Reference setting close to the maximum frequency

The system will drop the speed after the Lag Drive Fixed Speed Delay expires in order to follow the output frequency of the

previously idle drive. This transition may cause unwanted pressure drops. A longer deceleration time will be activated on the

lag drives when the system switches the drive that is being followed. The longer deceleration time will be effective for a

programmable setting, after which the regular deceleration time is used.

Functional Operation

If P9-05 = 3 (Follow Lead Spd), the lag drive will use the network information and the lead drive output speed as its frequency

reference. The lag drive final speed reference is affected by (Lag Follower Gain, P9-30) and then by (Lag Follower Bias,

P9-31).

Lag Drive Speed = ( Lead Drive Speed x Lag Follower Gain ) + Lag Follower Bias

When P9-33 > 0.0 sec, an alternate deceleration time (Lag Follower Decel, P9-32) is used when the drive switches from the

latched speed (Lag Fixed Delay, P9-07) to the new Lead drive output frequency. The deceleration time is active for the duration

set in P9-33, Lag Follower Deceleration Time Active Time, and will switch back to the regular deceleration rate when it

expires.

Note:

Parameter functionality stated below only applies when P1-01 = 3 (MEMOBUS Network)

Related Parameters

No.

Name

Description

Values

Determines the functionality of the lag drives.

0: Fixed speed. The drive runs at the P9-06 setting after the time set in P9-07

expires.

Default: 0

P9-05

Lag Drive Mode

2: Turn off. The drive stops running when it switches to a lag drive after the time

Range: 0, 2, 3

set in P9-07 expires.

3: Follow Lead Speed. The drive will follow the speed of the current lead drive,

applying P9-30 gain and P9-31 bias.

Specifies how long speed is latched before performing the function specified in

Default: 5 s

P9-07

Lag Fixed Speed Delay

P9-05 when the drive changes from a lead to a lag.

Min.: 0

Max.: 1000

Sets the gain to be applied to the speed of the current lead drive when P9-05 is set

Default: 100.0%

P9-30

Lag Drive Speed Follower Gain

to 3. The bias to be applied is set in P9-31.

Min.: 0.0

Max.: 300.0

Sets the bias to be applied to the speed of the current lead drive when P9-05 is set

Default: 0.00 Hz

P9-31

Lag Drive Speed Follower Bias

to 3. The gain to be applied is set in P9-30.

Min.: -60.0

Max.: 60.0

Sets the deceleration time when the P9-33 timer is running and the drive is running

Default: 60.0 s

Lag Follower Deceleration

P9-32

as Lag Drive Speed Follower (P9-05 is set to 3).

Min.: 0.0

Time

Max.: 1000.0

Sets the time during which the deceleration time set in P9-32 is effective. The drive

Default: 0.0 s

Lag Follower Deceleration

P9-33

will use the standard deceleration rate when it expires.

Min.: 0.0

Time Active Time

Setting this parameter to 0.0 disables the function.

Max.: 360.0

4.8 iQpump Presets and Functions

No.

Name

Description

Values

Determines the communication compatibility for the iQPump MEMOBUS

network.

Network Compatibility

Default: 2

P9-99

0: A-Ver: 30034

Selection

Range: 0 to 2

1: B-Ver: 30035/36

2: iQ Smart Network

n Software (MEMOBUS) Multiplexing Setup

Wiring the Drive RS-485 Network Connections

Reservoir

Process Supply

Pump

iQpump

R+ R- S+ S-

RS-485 Network

Figure 4.11 System Overview

Perform the following steps to make the RS-485 network connections between all drives that will be multiplexed:

1. Jumper terminals (R+ to S+) and jumper terminals (R- to S-) terminals on each individual drive according to Figure

4.12.

Drive X

R+

R-

S+

S-

Figure 4.12 Drive Terminal Jumpers

2. Use shielded communication cable for steps 3 and 4 to connect the drives in a daisy chain manner according to

Figure 4.13.

3. Daisy chain the (R+ to S+) terminals between each drive.

4. Daisy chain the (R- to S-) terminals between each drive.

4.8 iQpump Presets and Functions

Drive 1

Drive 2

Drive 3

R+

R-

S+

S-

R+

R-

S+

S-

R+

R-

S+

S-

Figure 4.13 Daisy Chain Three Drives

Setting the Drive Networking Parameters

1. Set parameter H5-01, Serial Node Address, on each drive.

Note:

For optimal performance, use consecutive numbers starting from 1. Parameter setting H5-01 must be unique for each drive.

2. Set parameter P9-25, Highest Node Address, on each drive.

Note:

For optimal performance, set to highest H5-01 value. This setting must be the same for all the drives on the network.

3. Set P1-01 to 3 (MEMOBUS/Modbus Network) on all the drives.

4. Cycle main power to all networked drives.

Note:

The H5-01 setting will not take effect until power is cycled to the drive and may cause communication errors and unexpected

behavior.

Verifying Drive Network Communications

Access monitor U9-02, Network Activity, and verify:

• No drives have a value of 0 <->

• All drives are receiving valid data indicated by a regular change in the monitor value.

• At least one drive has the unit <M>, while the others have the unit <+>.

Table 4.9 Network Connectivity Information

Top Line on Home Screen

Network State

U9-02 Network Activity

(o1-12 = 1)

<M> CONNECTED

- MONITR -

DRV RDY

Pump Off Network

Network Activity

Drive is the Master and is

U5-99=

100.0PSI

U9-02=

9453<M>

communicating with

another drive.

U1-02=

0.00Hz

U1-02=

0.00Hz

U1-91=

62.8PSI

U1-91=

62.8PSI

<- MONITOR - >

Home

FWD

<+> CONNECTED

- MONITR -

DRV RDY

Pump Off Network

Network Activity

Drive is a node on the

network and is

U5-99=

100.0PSI

U9-02=

324<+>

communicating with a

U1-02=

0.00Hz

U1-02=

0.00Hz

Master.

U1-91=

62.8PSI

U1-91=

62.8PSI

<- MONITOR - >

Home

FWD

<-> DISCONNECTED

- MONITR -

DRV RDY

Pump Off Network

Network Activity

Drive is not able to

U5-99=

100.0PSI

U9-02=

0<->

communicate to any other

drives.

U1-02=

0.00Hz

U1-02=

0.00Hz

U1-91=

62.8PSI

U1-91=

62.8PSI

<- MONITOR - >

Home

FWD

If a drive displays U9-02 = 0 <->:

4.8 iQpump Presets and Functions

• Check physical connections.

• Verify the H5-oo serial communication settings.

• Confirm the P9-25 and P9-27 settings on all the drives. P9-25 should be set to the highest H5-01 address and at least one

drive should have P9-27 set to 0.

• Cycle main power.

Multiplexing Principle

Always observed by system:

• New drives start as Lead and run in PID mode.

• Only the Lead drive can request staging and de-staging.

• Staging will start a new Lead drive and make the old Lead drive into a Lag drive.

• De-staging will stop the current Lead drive and restore the previous drive as the Lead drive.

Multiplexing Messages

During multiplexing, the drive will display a message when it will be staged in or de-staged out. The message will indicate if

it is being staged in or out and display a countdown timer of how long until the change takes place.

One of the following conditions must be met for de-staging to occur:

• High Feedback Quick De-stage

• Low Feedback Quick De-stage

• Normal De-stage

• Low Water Level De-stage

• Suction Pressure De-stage

Drive Run Order

U9-04, Running Queue No:

• Shows the position in the iQpump MEMOBUS running queue.

• U9-04 = 0 for pumps that are not running.

• U9-04 = 1 on the first pump that came on and is still running.

• U9-04 = 2 on the second pump that came on and is still running.

• U9-04 = the number of pumps running for the current Lead drive.

Multiplex Status Display

Table 4.10 Multiplex Status Display (Optional HOA Keypad, JVOP-183)

Network State

Display

- MODE -

DRV RDY

Pump Off Network

Drive is not able to accept commands from

U5-99= 100.0PSI

the iQpump MEMOBUS network because

the drive is not in AUTO Mode run.

U1-02=

0.00Hz

U1-91=

62.8PSI

Home

- MODE -

DRV RDY

Wait for Net Cmd

Drive is in AUTO Mode and waiting for a run

U5-99= 100.0PSI

command from the iQpump MEMOBUS

network.

U1-02=

0.00Hz

U1-91=

62.8PSI

Home

4.8 iQpump Presets and Functions

Network State

Display

- MODE -

DRV RDY

Lead: Setpoint

Drive is in AUTO Mode, Lead operation and

U5-99= 100.0PSI

is currently regulating the system using PID

control.

U1-02=

52.38Hz

U1-91=

62.8PSI

Home

- MODE -

DRV RDY

Lag: Fixed Hold

Drive is in AUTO Mode, Lag operation and

is holding the speed at the time it made the

U1-01= 59.41HZ

switch from being a lead drive to a lag. Speed

is held until P9-07 time expires. The Home

U1-02=

59.41Hz

screen will display U1-01 instead of U5-99.

U1-91=

99.8PSI

Home

- MODE -

DRV RDY

Lag: Fixed P9-06

Drive is in AUTO Mode, Lag operation and

U1-01= 55.00HZ

is running at the speed set in P9-06. The

Home Screen will display U1-01 instead of

U1-02=

55.00Hz

U5-99.

U1-91=

99.9PSI

Home

- MODE -

DRV RDY

Lag: Follow Lead

Drive is in AUTO Mode, Lag operation and

U1-01= 51.37HZ

is following the speed of the current Lead

drive. The Home screen will display U1-01

U1-02=

51.35Hz

instead of U5-99.

U1-91=

98.9PSI

Home

PID Feedback via Network

The Network PID Feedback comes from a drive on the network with a valid analog PID feedback source and can be used as

the primary or secondary feedback source for a networked drive.

Set P9-02 to 0 if a drive has an analog PID feedback device installed and switching to network as a backup is not desired.

If a drive has an analog PID feedback device installed and the network PID feedback is considered as a backup, set P9-02 to

1 for no alarm message when switched and set P9-02 to 2 for an alarm.

Set P9-02 to 3 if a drive has no analog PID feedback device installed and relies solely on the analog PID feedback of another

networked drive.

Note:

Connect an analog PID feedback device to each drive for best performance.

Related Parameters

No.

Parameter Name

Setting Values

Default: 1F (Hex)

H5-01

Drive Node Address

Min.: 0

Max.: FF

Default: 0

P1-01

Pump Mode

Range: 0, 3

Default: 0

P9-02

Feedback Source

Range: 0 to 3

Default: 4

P9-25

Highest Node Address

Range: 2 to 4

4.8 iQpump Presets and Functions

No.

Parameter Name

Setting Values

Default: 0

P9-27

Network Recovery

Range: 0 to 3

U9-02

Network Activity

No signal output available

U9-04

Running Queue Number

No signal output available

n Simple Duplex System Application Example

A customer requires a duplex system with the following capabilities:

• Control the system pressure using two drives (no PLCs).

• Alternate drives everyday to even out the pump wear.

• Toggle switch for Run command.

• Each drive will have its own feedback transducer. Due to the shut-off valves, the network feedback should not be used as a

backup.

• Pump is at optimal running speed when at fixed speed of 54.0 Hz.

• Setpoint is 100 PSI, feedback scale is 145 PSI, start level is 80 PSI.

RUN

Drive B

Drive A

15 HP

R+

R-

S+

S-

R+

R-

S+

S-

Figure 4.14 Simplified Wiring Diagram

Table 4.11 Related Parameters for Simple Duplex System Example

Description

Drive A^<1>

Drive B^<1>

Run Source: 1 (Terminals)

b1-02 = 1

Node Address

H5-01 = 1

H5-01 = 2

Highest Node Address

P9-25 = 2

Pump Mode: 3 (Network)

P1-01 = 3

Feedback Source: 0 (Analog)

P9-02 = 0

Lag Fixed Speed

P9-06 = 54.0 Hz

Setpoint

U5-99 = 100 PSI

Start Level

P1-04 = 80 PSI

<1> All other multiplexing and alternation parameters are set to default settings.

Duplex System with Fine Tuning Application Example

The customer would like to solve a pump cycling problem. Currently the second drive runs for 10 to 20 seconds at minimum

speed then shuts off, letting the first drive run at maximum. This will then run the second drive again and the cycle will repeat.

The customer must also account for system losses when running both pumps by boosting the setpoint by 5 PSI. In the event

that the pressure exceeds 125 PSI, the second drive should de-stage if both drives are running. If the pressure exceeds 140

PSI, a high feedback fault should occur and stop the drive.

There are multiple methods to handle the pump cycling problem:

• Lower the lag fixed speed (P9-06)

4.8 iQpump Presets and Functions

• Decrease the lag fixed speed delay (P9-07)

• Increase the staging frequency level (P9-09)

• Increase the staging delay time (P9-11)

• Increase the de-staging delay time (P9-15)

• Increase the stabilization time (P9-16)

• Increase both the Add Freq Level and Add Dly Time

Table 4.12 Related Parameters for Duplex System with Fine Tuning Application Example

Description

Drive A^<1>

Drive B^<1>

Run Source: 1 (Terminals)

b1-02 = 1

Node Address

H5-01 = 1

H5-01 = 2

Highest Node Address

P9-25 = 2

Pump Mode: 3 (Network)

P1-01 = 3

Feedback Source: 0 (Analog)

P9-02 = 0

Lag Fixed Speed

P9-06 = 54.0 Hz

Setpoint

U5-99 = 100 PSI

Start Level

P1-04 = 140 PSI

High Feedback Quick De-Stage

P9-18 = 89.3%

Setpoint Modifier

P9-17 = 5.0 PSI

Add Drive Frequency Level

P9-09 = 59.0 Hz

Add Drive Delay

P9-11 = 12.0 s

<1> All other multiplexing and alternation parameters are set to default settings.

Duplex System with Jockey Pump Example

A customer requires a pump system with the following requirements:

• One small pump (the Jockey pump) will run the system during off-peak times.

• Two larger pumps will run the system when the demand is higher.

• The Jockey pump should not run when the two larger pumps are running.

• Pump wear is still an issue, but it is expected that the small pump will run longer hours and will always run first after a loss

of power.

• The feedback scale is 145 PSI.

• There is only one feedback transducer in the system.

(Jockey Pump)

Drive B

Drive C

10 HP

15 HP

R+

R-

S+

S-

R+

R-

S+

S-

R+

R-

S+

S-

Figure 4.15 Simplified Wiring Diagram

Table 4.13 Related Parameters for Duplex System with Jockey Pump Example

Description

Jockey Pump^<1>

Drive B^<1>

Drive C^<1>

Node Address

H5-01 = 1

H5-01 = 2

H5-01 = 3

Highest Node Address

P9-25 = 3

4.8 iQpump Presets and Functions

Description

Jockey Pump^<1>

Drive B^<1>

Drive C^<1>

Pump Mode: 3 (Network)

P1-01 = 3

Feedback Source: 0 (Analog), 3

P9-02 = 0

P9-02 = 3

(Network)

Lag Drive Speed: 0 (Always), 2

P9-05 = 2

P9-05 = 0

(Turn Off)

Allow Net Run: 0 (Always), 2 (First

P9-20 = 2

P9-20 = 0

Only)

Run Priority

P9-21 = 7

P9-21 = 8

Lead Swap @ Sleep

P9-24 = 0

P9-24 = 1200 s

Setpoint

U5-99 = 100 PSI

Start Level

P1-04 = 80 PSI

<1> All other multiplexing and alternation parameters are set to default settings.

Triplex System Example

A customer who currently runs a duplex system would like to retrofit an existing triplex system with the following requirements:

• Three similarly sized pumps would run the system.

• A maximum of two drives should be running at any point; the third drive is a backup.

• Alternation should only happen when pumps are not running (sleeping).

• If one of the analog pressure feedback transducers should fail, read from a working one and notify the customer of the failure

by the alarm display.

• Setpoint is 90 PSI, feedback scale is 145 PSI, start level is 75 PSI.

Drive A

Drive B

Drive C

25 HP

R+

R-

S+

S-

R+

R-

S+

S-

R+

R-

S+

S-

Figure 4.16 Simplified Wiring Diagram

Table 4.14 Related Parameters for Triplex System Example

Description

Drive A^<1>

Drive B^<1>

Drive C^<1>

Node Address

H5-01 = 1

H5-01 = 2

H5-01 = 3

Highest Node Address

P9-25 = 3

Pump Mode: 3 (Network)

P1-01 = 3

Feedback Source: 2 (Analog ->Net,

P9-02 = 2

with Alarm)

Alternation Mode: 3 (FIFO @ Sleep)

P9-04 = 3

Maximum Running Pumps

P9-23 = 2

Setpoint

U5-99 = 90 PSI

Start Level

P1-04 = 75 PSI

<1> All other multiplexing and alternation parameters are set to default settings.

4.8 iQpump Presets and Functions

n Multiplexing Stop History

Many irrigation-pumping skids consist of a PM pump (Pressure Maintenance) and typically two larger booster pumps to

maintain high flow peak demands. In many cases depending on the number of irrigation zones in combination with the type

of sprinkler heads used, the flow demand fluctuates and may not require the use of both larger booster pumps at the same time

until higher flow rates are required. The drive Controller "Run Stop" history ensures that both booster pumps alternate each

run cycle.

Table 4.15 P9-01, Lead Drive Selection, Detection Settings

Setting

Description

Next Available

Select next available drive on the network as the new lead drive

Lowest Runtime (default)

Select the iQpump Controller with the lowest runtime as the new lead drive

Stop History

Select the iQpump that had been stopped for the longest time.

Note:

The new lead drive selection also applies to Alternation (P9-03 > 0) and will use the Stop History list when finding the alternate.

Triplex Irrigation Booster System Example

When pressure is dropping, the PM Pump (if installed) will attempt to return the system pressure to the desired setpoint level.

If the PM Pump is not able to return the system to the setpoint pressure, typically due to a greater flow demand, the booster

pump #1 will be staged on.

The drive controller will speed up or slow down the pump as needed to maintain the system pressure. When flow decreases

and the pump system is no longer required to run, the system will go to sleep waiting for the pressure to drop. On the next run

cycle the PM pump will start up again, and instead of running booster pump #1, booster pump #2 is stages on, since booster

#1 ran during the last cycle.

This method ensures that during normal operation both booster pumps will operate evenly as lead or lag pumps each run cycle.

A triplex irrigation booster system has one PM Pump (pressure maintenance) and two larger booster pumps of the same

horsepower. The customer would like to ensure that the PM Pump is also the lead pump to recharge the system during low

flow usage, but during high demands the booster pumps alternate on each run cycle or if required will both run to support very

high flow demands.

• Jockey/PM Pump will also be lead to start.

• Jockey/PM Pump will stage booster pump 1 or 2 and stay running for 20 seconds and then shut off.

• Booster pump 1 will run system and if required, call for booster pump 2 or vice versa.

• On sleep mode, the lead drive for starting will swap back to Jockey/PM Pump.

• System setpoint 100 PSI.

• Pressure drop of 10 PSI will start the Jockey pump.

• All drives have individual transducers rated 200 PSI maximum, but if there is a transducer failure, switch to network.

Triplex Irrigation Booster System Related Parameters

Table 4.16 Related Parameters

Parameter No.

Parameter Name

PM Pump

Booster Pump 1

Booster Pump 2

H5-01

Drive Node Address

P1-01

Pump Mode

P1-03

Feedback Device Scaling

200 PSI

P1-04

Start / Draw Down Level

-10.0 PSI

P9-01

Lead Drive Selection

P9-02

Feedback Source

P9-07

Lag Fixed Speed Delay

20 s

5 s

P9-20

Allow Network Run

P9-21

Run Priority

P9-24

Lead Swap at Sleep

0 s

1 s

P9-25

Highest Node Address

U5-99

PID Setpoint Command

100 PSI

100

4.9 Auto-Tuning

4.9

Auto-Tuning

u Stationary Auto-Tuning

Type

Setting

Application Conditions and Benefits

Control Mode

For use when:

Stationary Auto-

Tuning

• The motor cable exceeds 50 m

for Line-to-Line

T1-01 = 2

• The motor cable length has been modified after Auto-Tuning has

V/f Control

Resistance (V/f and

been previously performed

OLV Control)

• When motor capacity and drive capacity differ

Note:

Auto-Tuning cannot be performed on permanent magnet motors (IPM, SPM, etc.).

u Before Auto-Tuning the Drive

Check the items below before Auto-Tuning the drive.

n Basic Auto-Tuning Preparations

• Auto-Tuning automatically determines the electrical characteristics of the motor. This is fundamentally different from other

types of Auto-Tuning features used in servo systems.

• Auto-Tuning requires the user to input data from the motor nameplate. Make sure the information written on the nameplate

is available before Auto-Tuning the drive.

• For best performance, be sure the drive input supply voltage equals or exceeds the motor rated voltage.

Note:

Performance can be enhanced by using a motor with a base voltage that is 20 V (40 V for 400 V class models) lower than the input supply

voltage. This may be of special importance when operating the motor above 90% of base speed, where high torque precision is required.

• Auto-Tuning is not possible with permanent magnet motors.

• To cancel Auto-Tuning, press the OFF key on the LCD operator.

• Table 4.17 describes digital input and output terminal status during Auto-Tuning.

Table 4.17 Digital Input and Output Operation During Auto-Tuning

Auto-Tuning Type

Digital Input

Digital Output

Stationary Auto-Tuning for Line-to-Line Resistance

Not available

Maintains the status at the start of Auto-Tuning

WARNING! Sudden Movement Hazard. Do not release the mechanical brake during stationary Auto-Tuning. Inadvertent brake release may

cause damage to equipment or injury to personnel. Ensure that the mechanical brake release circuit is not controlled by the drive multi-

function digital outputs.

n Notes on Stationary Auto-Tuning for Terminal Resistance Only

• If the motor cable lead length has been significantly modified after Auto-Tuning has already been performed, perform

Stationary Auto-Tuning with the new cables.

• Perform when using motor cables longer than 50 m with V/f Control.

WARNING! Electrical Shock Hazard. When executing stationary Auto-Tuning for line-to-line resistance only, the motor does not rotate,

however, power is applied. Do not touch the motor until Auto-Tuning is completed. Failure to comply may result in injury from electrical

shock.

u Auto-Tuning Interruption and Fault Codes

If tuning results are abnormal or the STOP key is pressed before completion, Auto-Tuning will be interrupted and a fault code

will be displayed on the digital operator.

A - Normal Auto-Tuning Display

B - Auto-Tuning Interrupted

Figure 4.17 Auto-Tuning Interruption Display (Standard Digital LED Operator)

101

4.9 Auto-Tuning

u Performing Auto-Tuning

n Auto-Tuning Procedure

Auto-Tuning should generally be performed in the following steps.

Refer to Before Auto-Tuning the Drive on page 101.

Determine which type of Auto-Tuning best fits the application requirements following Figure 4.18.

START

Select a V/f pattern

E1-03

Is the cable

between the motor

and drive longer

than 50 m?

YES

Stationary Auto-Tuning for

Line-to-Line Resistance

(T1-01 = 2)

Run the motor without the load.

Fine tune parameters if needed.

Connect the load and run the motor.

Fine tune parameters if needed.

Verify system operates as required.

Auto-Tuning finished.

Figure 4.18

Enter the type 2 of Auto-Tuning to parameter T1-01.

Enter the motor nameplate data.

Start the Auto-Tuning process when prompted by the drive.

If Auto-Tuning was successfully performed, do a test run without the load and make any necessary parameter adjustments.

If the test run was successful, do a test run with the load connected and make parameter adjustments if necessary.

u Input Data for Auto-Tuning

The T1-oo parameters are used to set the Auto-Tuning input data.

Note:

1. Cycling power to the drive will reset any values set during the Auto-Tuning process to factory defaults.

2. For motors that are to be operated in the field weakening range, first perform the Auto-Tuning with the base data, i.e. the frequency at

which the motor is operating with its rated voltage (base frequency). After Auto-Tuning is complete, change the maximum frequency

E1-04 to the desired value.

n T1-01: Tuning Mode Selection

Sets the type of Auto-Tuning to be used. Refer to Stationary Auto-Tuning on page 101 for details on Stationary Auto-Tuning.

No.

Name

Setting Range

Default

T1-01

Auto-Tuning Mode Selection

2 (V/f)

Setting 2: Stationary Auto-Tuning for Line-to-Line Resistance

102

4.9 Auto-Tuning

n T1-02: Motor Rated Power

Used to set the motor rated power according to the motor nameplate value. For optimal performance, the motor rated power

should be between 50 and 100% of the drive rating.

No.

Name

Setting Range

Default

<1>

Determined by

T1-02

Motor Rated Power

o2-04 and C6-01

<1> The setting range differs based on drive software version.

PRG: 1016 and later: 0.03 to 650.00 kW

PRG: 1015 and earlier: 0.00 to 650.00 kW

n T1-04: Motor Rated Current

Used to set the motor rated current according to the motor nameplate value. For optimal performance in OLV, the motor rated

current should be between 50 and 100% of the drive rating. Enter the current at the motor base speed.

No.

Name

Setting Range

Default

10 to 200% of drive rated

Determined by

T1-04

Motor Rated Current

current

o2-04 and C6-01

103

4.10 No-Load Operation Test Run

u No-Load Operation Test Run

This section explains how to operate the drive with the motor uncoupled from the load during a test run.

n Before Starting the Motor

Check the following items before operation:

• Ensure the area around the motor is safe.

• Ensure external emergency stop circuitry is working properly and other safety precautions have been taken.

n During Operation

Check the following items during operation:

• The motor should rotate smoothly (i.e., no abnormal noise or oscillation).

• The motor should accelerate and decelerate smoothly.

n No-Load Operation Instructions (Standard Digital LED Operator)

The following example illustrates a test run procedure using the digital operator.

Step

Display/Result

Turn on the power to the drive. The initial display appears.

HAND

Press ^HAND to give the drive a Run command from HAND mode. The HAND light will

turn on and the motor will rotate at 40 Hz.

AUTO

OFF

HAND

Off

Motor

Ensure the motor is rotating in the correct direction and no faults or alarms occur.

Forward

If there is no error in step 3, press

to increase the frequency reference. Increase the

frequency in 10 Hz increments verifying smooth operation results at all speeds. For each

frequency, monitor the drive output current (U1-03) through the LED operator to confirm

the current is well below the motor rated current. Example: 40 Hz → 60 Hz.

HAND

OFF

The drive should operate normally. Press

to stop the motor. The HAND light is

off and the motor coasts to stop.

AUTO

OFF

HAND

Off

104

4.11 Test Run with Load Connected

u Test Run with the Load Connected

After performing a no-load test run connect the load and proceed to run the motor and load together.

n Notes on Connected Machinery

• Clear the area around the motor.

• The motor should come to a complete stop without problems.

• Connect the machinery.

• Fasten all installation screws properly. Check that the motor and connected machinery are held in place.

• Confirm that the Fast-stop circuit or mechanical safety measures operate correctly.

• Be ready to press the OFF button in case of emergency.

n Checklist Before Operation

• The motor should rotate in the proper direction.

• The motor should accelerate and decelerate smoothly.

n Operating the Motor under Loaded Conditions

Test run the application similarly to the no-load test procedure when connecting the machinery to the motor.

• Check monitor parameter U1-03 to ensure there is no overcurrent.

• If the application permits running the load in the reverse direction, try changing motor direction and the frequency reference

while watching for abnormal motor oscillation or vibration.

• Correct any problems that occurs with hunting, oscillation, or other control-related issues.

105

4.12 Verifying Parameter Settings and Backing Up Changes

Check changes to parameter settings as a result of Auto-Tuning using the Verify function. Refer to Verifying Parameter

Changes: Modified Constants Menu on page 83.

Save the verified parameter settings. Change the access level or set a password to the drive to prevent accidental modification

of parameter settings.

u Backing Up Parameter Values: o2-03

Performing the following procedure stores all parameters settings to drive memory where they can later be recalled if necessary.

Set o2-03 to “1” to save parameter changes. This saves all parameter settings, and then returns o2-03 to 0. The drive can now

“recall” the saved parameters by performing a “user-initialization” (A1-03 = 1110).

Setting

Default

No.

Parameter Name

Description

Range

Setting

Allows storing of parameter settings as a User Initialization Selection.

0: Saved/Not set

User Parameter

1: Set Defaults - Saves current parameter settings as user default settings.

o2-03

0 to 2

Default Value

2: Clear All - Clears the currently saved user settings. After saving the user parameter

set value, the items of 1110 (User Parameter Initialize) are displayed in A1-03 (User

Parameter Default Value).

Selects a method to initialize the parameters.

0: No Initialize

1110: User Initialize (The user must first program and store desired settings using

parameter o2-03)

2220: 2-Wire Initialization (parameter initialized prior to shipment)

3330: 3-Wire Initialization

5550: oPE4 Fault reset

Initialize

A1-03

6008: Pressure Control Application Preset

0 to 7771

Parameters

(Refer to Pump Application Presets on page 86)

6009: Pump Down Level Application Preset

(Refer to Pump Application Presets on page 86)

7770: General Purpose Application Preset

(Refer to Pump Application Presets on page 86)

7771: Submersible Motor General Purpose Operation

(Refer to Pump Application Presets on page 86)

u Parameter Access Level: A1-01

Setting the Access Level for “Operation only” (A1-01 = 0) allows the user to access parameters A1-oo and Uo-oo only.

Other parameters are not displayed.

Setting the Access Level for “User Parameters” (A1-01 = 1) allows the user to access parameters that have been previously

saved as User Parameters. This is helpful when displaying only the relevant parameters for a specific application.

Setting

No.

Parameter Name

Description

Default

Range

Selects which parameters are accessible via the digital operator.

0: Operation only (A1-01, -04, and -06 can be set and monitored. U parameters can be

monitored)

1: User Parameters (Only those recently changed among application parameters A2-01 to

Access Level

A1-01

-16 and A2-17 to -32 can be set and monitored)

0 to 3

Selection

2: Advanced Access Level (All parameters can be set and monitored)

3: Lock Parameters (Parameters that are normally visible in the advanced access level

(A1-01 = 2) are still visible, but the only parameters that can be changed are A1-01 and

A1-04.)

u Password Settings: A1-04, A1-05

The user can set a password to the drive to restrict access. The password is selected via parameter A1-05. The selected password

must be entered in parameter A1-04 to unlock parameter access (i.e., parameter setting A1-04 must match the value

programmed into A1-05). The following parameters cannot be viewed or edited until the value programmed into A1-04

correctly matches the value as programmed in parameter A1-05: A1-01, A1-02, A1-03, A1-06 and A2-01 through A2-33.

Note:

OFF

Parameter A1-05 is hidden from view. To display A1-05, access parameter A1-04 and simultaneously depress the

key and the

key.

106

4.13 Test Run Checklist

Review the checklist before performing a test run. Check each item that applies.

WARNING! Ensure start/stop and safety circuits are wired properly and in the correct state before energizing the drive. Failure to comply

could result in death or serious injury from moving equipment. When programmed for 3-Wire control, a momentary closure on terminal S1

may cause the drive to start.

No.

Checklist

Page

Thoroughly read the manual before performing a test run.

Turn the power on.

Set the voltage for the power supply to E1-01.

155

Select the best V/f pattern according to the application and motor characteristics.

Example: If using a motor with a rated frequency of 60.0 Hz, set E1-03 to “1”.

The

should illuminate after giving a run command using the AUTO key.

If the motor rotates in the opposite direction during the test run, switch two of the drive output terminals (U/T1,

V/T2, W/T3).

If the control circuit terminals should supply the frequency reference, select the correct voltage input signal level

(0 to 10 V) or the correct current input signal level (4 to 20 mA or 0 to 20 mA).

Set the proper voltage to terminal A1. (0 to 10 V).

115

Set the proper current to terminal A2. (4 to 20 mA or 0 to 20 mA).

115

When current input is used, set H3-09 to “2” (4 to 20 mA) or “3” (0 to 20 mA) and set H3-10 to “0”.

When current input is used, switch the drive built-in DIP switch S1 from the V-side (OFF) to I-side (ON).

108

5.1 A: Initialization

5.1

A: Initialization

The initialization group contains parameters associated with initial setup of the drive. Parameters involving the display

language, access levels, initialization, and password are located in this group.

u A1: Initialization

n A1-00: Language Selection

Selects the display language for the digital operator.

Note:

This parameter is not reset when the drive is initialized using parameter A1-03.

No.

Parameter Name

Setting Range

Default

A1-00

Language Selection

0 to 7

Setting 0: English

Setting 1: Japanese

Setting 2: German

Setting 3: French

Setting 4: Italian

Setting 5: Spanish

Setting 6: Portuguese

Setting 7: Chinese

n A1-01: Access Level Selection

Allows or restricts access to drive parameters.

No.

Parameter Name

Setting Range

Default

A1-01

Access Level Selection

0 to 3

Setting 0: Operation only

Access to only parameters A1-01, A1-04, and all U monitor parameters.

Setting 1: User Parameters

Access to only a specific list of parameters set to A2-01 through A2-32. These User Parameters can be accessed using the

Setup Mode of the digital operator.

Setting 2: Advanced Access Level (A) and Setup Access Level (S)

All parameters can be viewed and edited.

Setting 3: Lock Parameters

Parameters that are normally visible in the advanced access level (A1-01 = 2) are still visible, but the only parameters that can

be changed are A1-01 and A1-04.

The Auto Tuning and Pump Quick Setup menus will not be displayed.

Figure 5.1 Help Message Example (Optional HOA Keypad, JVOP-183, Home Screen)

Notes on Parameter Access

• If the drive parameters are password protected by A1-04 and A1-05, parameters A1-00 through A1-03, A1-06, and all A2

parameters cannot be modified.

110

5.1 A: Initialization

• If a digital input terminal programmed for “Program lockout” (H1-oo = 1B) is enabled, parameter values cannot be

modified, even if A1-01 is set to 1 or 2.

• If parameters are changed via serial communication, it will not be possible to edit or change parameter settings with the

digital operator until an Enter command is issued to the drive from the serial communication.

n A1-03: Initialize Parameters

Resets parameters to default values or performs an Application Preset for fan or pump applications. After initialization, the

setting for A1-03 automatically returns to 0.

No.

Parameter Name

Setting Range

Default

0, 1110, 2220, 3330, 5550,

A1-03

Initialize Parameters

6008, 6009, 7770, 7771

Setting 1110: User Initialize

Resets parameters to the values selected by the user as User Settings. User Settings are stored when parameter o2-03 is set to

“1: Set defaults”.

Note:

User Initialization resets all parameters to a user-defined set of default values previously saved to the drive. Set parameter o2-03 to 2 to

clear the user-defined default values.

Setting 2220: 2-Wire Initialization

Resets parameters to default settings with digital inputs S1 and S2 configured as Forward run and Reverse run, respectively.

Setting 3330: 3-Wire Initialization

Resets parameters to default settings with digital inputs S1, S2, and S5 configured as Run, Stop, and Forward/Reverse

respectively.

Stop switch

Operation switch

(NC contact)

(NO contact)

Run command

FWD Run/Stop

(Run on momentary close)

Stop command

(Stop on momentary open)

Sequence input common

2-Wire Control

3-Wire Control

Figure 5.2 2 & 3-Wire Control Wiring Examples

Notes on Parameter Initialization

The parameters shown in Table 5.1 will not be reset when the drive is initialized by setting A1-03 = 2220 or 3330.

Table 5.1 Parameters Not Changed by Drive Initialization

No.

Parameter Name

A1-00

Language Selection

E1-03

V/f Pattern Selection

F6-08

Communication Parameter Reset

L8-35

Installation Selection

o2-04

Drive/kVA Selection

Setting 5550: Terminal/Control Initialize

An oPE04 error appears on the digital operator when a terminal block with settings saved to its built-in memory is installed

in a drive that has edited parameters. Set A1-03 to 5550 to use the parameter settings saved to the terminal block memory.

Application Presets are available to facilitate drive setup for commonly used applications. Selecting one of these Application

Presets automatically assigns functions to the input and output terminals and sets a predefined group of parameters to values

appropriate for the selected application.

111

5.1 A: Initialization

In addition, the parameters most likely to be changed are assigned to the group of User Parameters, A2-01 through A2-16.

User Parameters are part of the Setup Group, which provides quicker access by eliminating the need to scroll through multiple

menus.

Refer to Pump Application Presets on page 86 for detailed information on Application Presets.

Setting 6008: Pressure Control

Application Preset for Pressure Control applications. Refer to Pump Application Presets on page 86 for a list of parameters

and default values for this Application Preset.

Setting 6009: Pump Down Level

Application Preset for Pump Down Level applications. Refer to Pump Application Presets on page 86 for a list of parameters

and default values for this Application Preset.

Setting 7770: General Purpose

General Purpose Application Preset. Refer to Pump Application Presets on page 86 for a list of parameters and default values

for this Application Preset.

Setting 7771: Submersible Motor General Purpose Operation

General Purpose Application Preset. Refer to Pump Application Presets on page 86 for a list of parameters and default values

for this Application Preset.

n A1-04, A1-05: Password and Password Setting

A1-04 is for entering the password when the drive is locked. A1-05 is a hidden parameter used to set the password.

No.

Parameter Name

Setting Range

Default

A1-04

Password

0 to 9999

A1-05

Password Setting

How to use the Password

The user can set a password for the drive to restrict access. The password is set to A1-05 and must be entered to A1-04 to

unlock parameter access. Until the correct password is entered, the following parameters cannot be viewed or edited: A1-01,

A1-03, A1-06, and A2-01 through A2-33.

The instructions below demonstrate how to set a new password. Here, the password set is “1234”. An explanation follows on

how to enter the password to unlock the parameters.

Table 5.2 Setting the Password for Parameter Lock (Standard Digital LED Operator)

Step

Display/Result

Turn on the power to the drive. The initial display appears.

Scroll to the Parameter Setup display and press

Scroll to the right by pressing

Select the flashing digits by pressing

Select A1-04 by pressing

Press the

key while holding down

at the same time. A1-05 will appear.

Note: A1-05 is normally hidden, but can be displayed by following the directions listed

“05” flashes

here.

Press the

key.

Use

and

to enter the password.

Press

to save what was entered.

10.

The display automatically returns to the display shown in step 5.

112

5.1 A: Initialization

Table 5.3 Check to see if A1-01 is locked (continuing from step 10 above)

Step

Display/Result

Press

to display A1-01.

“01” flashes

Press

to display the value set to A1-01.

Press

and

, making sure that the setting values cannot be changed.

Press

to return to the first display.

Table 5.4 Enter the Password to Unlock Parameters (continuing from step 4 above)

Step

Display/Result

Press

to enter the parameter setup display.

Press

to select the flashing digits as shown.

“01” flashes

Press

to scroll to A1-04.

Enter the password “1234”.

Press

to save the new password.

Drive returns to the parameter display.

Press

and scroll to A1-01.

Press

to display the value set to A1-01. If the first "0" blinks, parameter settings

are unlocked.

Use

and

to change the value if desired. This is not typical.

10.

Press

to save the setting, or

to return to the previous display without saving

changes.

11.

The display automatically returns to the parameter display.

Note:

Parameter settings can be edited after entering the correct password. Performing a 2-Wire or 3-Wire initialization resets the password to

“0000”. Reenter the password to parameter A1-05 after drive initialization.

u A2: User Parameters

n A2-01 to A2-32: User Parameters

The user can select 32 parameters and assign them to A2-01 through A2-32. This saves time later scrolling through the

parameter menu. The list of User Parameters can also track the most recently edited settings and save those parameters to this

list.

No.

Parameter Name

Setting Range

Default

Depending on

A2-01 to A2-32

User Parameters 1 to 32

b1-01 to S6-02

A1-03

Saving User Parameters

To save specific parameters to A2-01 to A2-32, first set the access level to allow access to all parameters (A1-01 = 2). Next

assign the parameter number to the User Parameters list by entering it into one of the A2-oo parameters. By then setting

A1-01 to “1”, the access level can be restricted so that users can only set and reference the specific parameters saved as User

Parameters.

n A2-33: User Parameter Automatic Selection

A2-33 determines whether or not parameters that have been edited are saved to the User Parameters (A2-17 to A2-32) for

quick, easy access.

113

5.2 b: Application

5.2

b: Application

Application parameters configure the source of the frequency reference, the Run command, DC Injection Braking, Speed

Search, various timer functions, PID control, the Dwell function, Energy Savings and a variety of other application-related

settings.

u b1: Mode of Operation

n b1-01: Frequency Reference Selection 1

Selects the frequency reference source 1 for the AUTO mode.

Note:

If a Run command is input to the drive but the frequency reference entered is 0 or below the minimum frequency, the RUN indicator LED

on the digital operator will light and the STOP indicator will flash.

No.

Parameter Name

Setting Range

Default

b1-01

Frequency Reference Selection 1

0 to 4

In order to run the drive and motor, the drive must receive a Run command and an Auto Setpoint command. Parameter b1-01

specifies the origin of the Auto setpoint when in AUTO Mode. Switch to AUTO mode by pressing the AUTO button on the

HOA keypad while the drive is stopped.

Note:

If a Run command is input to the drive without a corresponding Auto setpoint, the Run indicator on the HOA keypad will turn on and the

STOP indicator on the keypad will blink.

If the drive should follow the “HAND Reference” set by the HOA keypad, use HAND Mode by pressing the HAND key and

set P5-01 to “1: Hand Reference (P5-02).” The HAND reference can then be entered into the U1-01 monitor parameter in the

“-DRIVE-” Menu.

The drive offers the ability to provide four types of “Auto Setpoint” reference sources. These Auto Setpoint reference sources

are determined by the setting of b1-01 and the drive set to AUTO Mode by pressing the AUTO key on the keypad.

Prior to programming, it is recommended to select the system units (P1-02) and the feedback device, Scaling (P1- 03) first.

P1-03 will automatically scale the drive setpoint.

Example: P1-02 = 1: PSI

P1-03 = 200, feedback range = 200 PSI.

If the drive should follow an “Auto Set-Point” set by the HOA keypad: Set b1-01 to “0: Operator” (factory default). The Auto

setpoint can then be entered into the U5-99 monitor parameter in the “-DRIVE-” menu.

Setting 0: Operator (HOA keypad)

Using this setting, the frequency reference can be input by:

• switching between the multi-speed references in the d1-oo parameters.

• entering the frequency reference on the operator keypad.

This selection will also switch PID setpoint to Q1-01.

Setting 1: Terminals (Analog Input Terminals)

Using this setting, an analog frequency reference can be entered from:

• Terminal A1 using a 0 to 10 Vdc signal.

• Terminal A2 using either a 0 to 10 Vdc or a 0/4 to 20 mA signal.

Note:

Terminal A2 supports voltage and current input. The input signal type must be set up by setting DIP switch S1 and adjusting parameter

H3-09.

Entering only the main frequency reference:

Using Control Circuit Terminal A1 (0 to 10 Vdc voltage input):

Use a circuit such as the one shown in Figure 5.3 or an external 0 to 10 Vdc voltage source like a PLC analog output and set

the input level selection for A1 in parameter H3-02 as desired.

115

5.2 b: Application

Figure 5.3 Setting the Frequency Reference by Voltage Input

• Using Control Circuit Terminal A2 (0 to 10 Vdc voltage input)

Use the same connection as explained for terminal A1 for terminal A2. Make sure that switch S1 is set to “V” and set the

appropriate signal level for terminal A2 by entering 0 or 1 into parameter H3-09. The terminal A2 function must be set to

frequency bias by entering 0 into parameter H3-10.

• Using Control Circuit Terminal A2 (0/4 to 20 mA current input)

Connect input A2 to an external current source such as the one shown in Figure 5.4. Make sure that switch S1 is set to “I”

and set the appropriate signal level for terminal A2 by entering 2 (4 to 20 mA) or 3 (0 to 20 mA) into parameter H3-09. The

terminal A2 function must be set to frequency bias by entering 0 into parameter H3-10.

DIP switch S1

Drive

+V (+10.5 V, 20 mA power supply)

Frequency reference

0 or 4 to 20 mA input

Frequency reference bias

AC Analog common

Figure 5.4 Setting the Frequency Reference by Current Input

Switching between Main/Auxiliary Frequency References

The frequency reference input can be switched between terminal A1 (main) and terminal A2 (auxiliary). When using this

function:

• Make sure that b1-01 is set to “1” (Frequency reference from analog input).

• Set the terminal A2 function to auxiliary frequency (H3-10 = 2).

• Set one digital input to multi-speed 1 (H1-oo = 3, default for S5).

The frequency reference value is read from

• Terminal A1 when the digital input set for multi-speed 1 is open.

• Terminal A2 when the digital input set for multi-speed 1 is closed.

Figure 5.4 shows a wiring example for main/auxiliary reference switching using digital input S5.

116

5.2 b: Application

Figure 5.5 Switching between Analog Reference 1 and 2

Setting 2: MEMOBUS/Modbus Communications

This setting requires entering the frequency reference via the RS-485/422 serial communications port (control terminals R+,

R-, S+, S-).

To setup the drive to receive the “Auto Setpoint” from serial communication, set b1-01 to “2: Serial Com,” and connect the

RS-422/RS-485 serial communications cable to terminals R+, R-, S+, and S- on the control I/O terminal block. Refer to

117 to see the connection diagram using a PC to provide the auto setpoint reference to the drive.

Terminating

Resistor

Modbus RTU Communications

RS-422/RS-485

19.2 Kbps

RS-485 Communication Connection

Figure 5.6 PC or PLC Connection Diagram

Setting 3: Option card

This setting requires entering the frequency reference via an option board plugged into connector CN5 on the drive control

board. Consult the option board manual for instructions on integrating the drive with the communication system.

Note:

If the frequency reference source is set for Option PCB (b1-01 = 3), but an option board is not installed, an oPE05 Operator Programming

Error will be displayed on the digital operator and the drive will not run.

To setup the drive to receive the “Auto Setpoint” for a network communication option card, set b1-01 to “3: Option PCB”,

and plug a supported communication option card into the drive control PCB. Consult the manual supplied with the option for

instructions on integrating the drive into the network system.

Setting 4: Pulse Train Input

This setting requires a pulse train signal to terminal RP to provide the frequency reference. Follow the directions below to

verify that the pulse signal is working properly.

117

5.2 b: Application

Pulse Train Input Specifications

Response Frequency

0.5 to 32 kHz

Duty Cycle

30 to 70%

High Level Voltage

3.5 to 13.2 V

Low Level Voltage

0.0 to 0.8 V

Input Impedance

3 kΩ

Verifying the Pulse Train is Working Properly

• Set b1-01 to 4 and set H6-01 to 0.

• Set the H6-02 to the pulse train frequency value that equals 100% of the frequency reference.

• Enter a pulse train signal to terminal RP and check for the correct frequency reference on the display.

n b1-02: Run Command Selection 1

Determines the Run command source 1 in AUTO Mode.

The drive comes factory programmed for Start and Stop from the keypad, but the user can program the drive to receive a Run

command from four different inputs: digital operator, terminals, serial communications, or an option PCB.

WARNING! Sudden Movement Hazard. Clear personnel, secure equipment, and check sequence and safety circuitry before starting the

drive. Failure to comply could result in death or serious injury from moving equipment.

To set the drive to receive the Run command from the HOA keypad, set b1-02 to “0: Operator,” and the HAND key will be

used to provide the Run command to the drive.

To set the drive to receive the Run command from the external terminals, set b1-02 to “1: Terminals” and initiate an external

Run command by a contact closure between terminals S1 and SN.

Note:

Using the external terminals requires setting the drive to AUTO Mode by pressing the AUTO key.

No.

Parameter Name

Setting Range

Default

b1-02

Run Command Selection 1

0 to 3

Setting 0: Operator (HOA keypad)

This setting requires entering the Run command via the HOA keypad AUTO key and also illuminates the HAND indicator

on the digital operator.

Setting 1: Control Circuit Terminal

This setting requires entering the Run command via the digital input terminals using one of following sequences:

• 2-Wire sequence 1:

Two inputs (FWD/Stop-REV/Stop). Set A1-03 to 2220 to initialize the drive and preset terminals S1 and S2 to these

functions. This is the default setting of the drive.

• 2-Wire sequence 2:

Two inputs (Start/Stop-FWD/REV).

• 3-Wire sequence:

Three inputs (Start-Stop-FWD/REV). Set A1-03 to 3330 to initialize the drive and preset terminals S1, S2, and S5 to these

functions.

Setting 2: MEMOBUS/Modbus Communications

This setting requires entering the Run command via serial communications by connecting the RS-485/422 serial

communication cable to control terminals R+, R-, S+, and S- on the removable terminal block.

Setting 3: Option Card

This setting requires entering the Run command via the communication option board by plugging a communication option

board into the CN5 port on the control PCB. Refer to the option board manual for instructions on integrating the drive into

the communication system.

Note:

If b1-02 is set to 3, but an option board is not installed in CN5, an oPE05 operator programming error will be displayed on the digital

operator and the drive will not run.

n b1-03: Stopping Method Selection

Selects how the drive stops the motor when the Run command is removed or when a Stop command is entered.

Note:

Parameter b1-11, Run Delay at Stop (Back Spin Timer), is effective for all stopping methods (b1-03 = 0 to 3), not only Coast to Stop w/

Timer (b1-03 =3).

118

5.2 b: Application

No.

Parameter Name

Setting Range

Default

b1-03

Stopping Method Selection

0 to 3

Setting 0: Ramp to Stop

When the Run command is removed, the drive will decelerate the motor to stop. The deceleration rate is determined by the

active deceleration time. The default deceleration time is set to parameter C1-02.

When the output frequency falls below the level set in parameter b2-01, the drive will start DC injection, Zero Speed Control,

or Short Circuit Braking.

Setting 1: Coast to Stop

When the Run command is removed, the drive will shut off its output and the motor will coast (uncontrolled deceleration) to

stop. The stopping time is determined by the inertia and the friction in the driven system.

Run

command

OFF

Output

frequency

Drive output is shut off

Motor speed

Figure 5.7 Coast to Stop

Note:

After a stop is initiated, any subsequent Run command entered will be ignored until the minimum baseblock time (L2-03) has expired. Do

not enter Run command until it has come to a complete stop. Use DC Injection at Start or Speed Search to restart the motor before it has

completely stopped.

Setting 2: DC Injection Braking to Stop

When the Run command is removed, the drive will enter baseblock (turn off its output) for the minimum baseblock time

(L2-03). When the minimum baseblock time has expired, the drive will inject the amount DC Injection Braking is set in

parameter b2-02 into the motor windings to brake the motor. The stopping time in DC Injection Braking to Stop is significantly

faster compared to Coast to Stop.

Run

command

OFF

DC Injection Braking

Output

with the current set in

frequency

b2-02

Motor speed

Motor coasts

Minimum Baseblock

Time (L2-03)

Figure 5.8 DC Injection Braking to Stop

DC Injection Braking time is determined by the value set to b2-04 and the output frequency at the time the Run command is

removed. It can be calculated by:

(b2-04) x 10 x Output frequency

DC Injection brake time

Max. output frequency (E1-04)

119

5.2 b: Application

DC Injection braking time

b2-0410

b2-04

Output frequency when

100%

10%

Stop command was entered

(Maximum output

frequency)

Figure 5.9 DC Injection Braking Time Depending on Output Frequency

Note:

If an overcurrent (oC) fault occurs during DC Injection Braking to Stop, lengthen the minimum baseblock time (L2-03) until the fault no

longer occurs.

Setting 3: Coast to Stop with Timer (Used for Back Spin Control on Vertical Turbine Pumps)

When the Run command is removed, the drive coasts to a stop. If parameter b1-11 = 0, the coast-timer (Run Delay at Stop)

becomes a value determined by a combination of output frequency and C1-02. However, if b1-11 > 0, the Run Delay at Stop

timer is set to b1-11. If the Run command is reissued during the Run Delay at Stop timer time, the drive WILL restart when

the timer expires without the need to re-cycle the Run command. The Run Delay at Stop timer will operate for both AUTO

Mode and HAND Mode. The Run Delay at Stop timer will still operate when the drive goes to sleep and then wakes up. During

the Run Delay at Stop timer execution, the HOA keypad will display a Start Delay message.

Run command

OFF

Output

Drive output shut off

frequency

Run wait time t

Figure 5.10 Coast to Stop with Timer

The wait time t is determined by the output frequency when the Run command is removed and by the active deceleration time.

Run wait time t

Active deceleration time

Momentary Power Loss

Minimum Baseblock

Time (L2-03)

Min output

Output frequency

100%

frequency

when Stop command

(Max output

was entered

frequency)

Figure 5.11 Run Wait Time Depending on Output Frequency

n b1-04: Reverse Operation Selection

For some applications, reverse motor rotation is not appropriate and may even cause problems (e.g., air handling units, pumps,

etc.). Setting parameter b1-04 to 1 instructs the drive to ignore any Reverse run commands.

No.

Parameter Name

Setting Range

Default

b1-04

Reverse Operation Selection

0 or 1

Setting 0: Reverse Operation Enabled

Possible to operate the motor in both forward and reverse directions.

120

Yaskawa iQpump Micro AC Drive Compact Intelligent Pump Controller. User Manual (2014) - page 3