KEB COMBIVERT F5-A,-E,-H 4.0. APPLICATION MANUAL (2008)

Special Functions

Timer reset condition (LE.20 / LE.25)

According to the following table the conditions can be defined under which the timer is reset in addition to the

inputs. The individual conditions are OR-operated.

Bit -No.

Decimal value

condition

Modulation on

Modulation off

Actual value = Setpoint va-

lue

Change of parameter set

Power-On-Reset

Timer display (ru.43 / ru.44)

ru.43 / ru.44 displays the actual counter reading dependent of the adjusted clock source (LE.21 / 26). By wri-

ting on ru.43 / 44 the counter can be set to a value. If the clock source is changed during the running time the

counter content is maintained but is interpreted according to the new clock source.

Comparison level 0...7 (LE.00...LE.07)

LE.00...LE.07 define the level for the switching conditions 37 / 38 ("Timer > Level").If the timer exceeds the

adjusted value the switching condition is set. A level in the range of

-10.737.418,24 to 10.737.418,23 can be

adjusted. But only values of 0...655,35 are sensible for the counter.

7.15.5Brake Control

For applications in the areas lifting and lowering, or other applications requiring the use of a brake, the control

of the brake can be taken over by the KEB frequency inverter.

To that end, the brake control must be activated in parameter Pn.34 "Brake control mode", and a transistor or

relay output must be connected to the function "18: Brake control". The output becomes active if the brake is

to be ventilated.

Page7.15 - 12

Special Functions

7.15.5.1

Brake control mode

With Pn.34, the status display during the brake handling can be set and a monitoring function can be activa-

ted.

The brake control is set-programmable.

Pn.34: Brake control mode

Value

Explanation

0: off

Brake control deactivated.

Brake control activated. Progress message "85: Close brake" (bon) or "86: Open bra-

1: with display

ke" (boFF).

2: without display

Brake control activated. No brake-specific status messages.

Brake control activated. Progress message "85: Close brake" (bon) or "86: Open bra-

3: with phase check /

ke" (boFF). Check whether all 3 inverter output phases can be powered. If one phase

with display

is missing, "56: ERROR! Brake control" (E.br) is triggered.

Brake control activated. No brake-specific status messages. Check whether all 3 in-

4: with phase check /

verter output phases can be powered. If one phase is missing, "56: ERROR! Brake

without display

control" (E.br) is triggered.

7.15.5.2

Monitoring of the brake control

Pn.43 "Min. load brake control"

With Pn.43 "Min. load brake control", a further monitor for the brake control can be activated.

For the monitoring of the utilisation acceptance through the inverter a minimal utilisation level can be adjusted

in this parameter.

If the brake is to be opened on start at the end of the pre-magnetising time (Pn.35), the load factor may not be

smaller than the adjusted level. Otherwise the error E. br is triggered. Reaching the hardware current limit the

error E.br is triggered too. The current is monitored only at this time (directly before the opening of the brake).

The monitoring is deactivated when Pn.43 is set to 0.

Pn.42 "Brake check input selection"

Between the end of the brake closing period (Pn.40) and the beginning of the break opening period (Pn.36), the

brake must always be closed. If the input becomes (or is) active during this phase, E.br is triggered.

Similarly, from the end of the brake opening period (Pn.36) to the end of the brake delay time (Pn.39), the brake

must always remain ventilated. If the input becomes (or is) inactive in this phase, E.br is also triggered.

With this input, e.g., a protection monitoring could be executed.

Page7.15 - 13

Special Functions

7.15.5.3

Sequence of the brake control

The sequence of the brake control is defined by five times, two for the opening and three for the closing of the

brake.

open brake

The opening of the brake is started when the control release is closed and the command to start the drive is

received.

In vector controlled operation, this is the activation of the direction of rotation, the setpoint speed has no effect.

That means: the brake is opened as well on setting the speed setpoint value = 0.

During positioning, the opening of the brake is triggered, e.g., by a "Start positioning" or a "Start approach to

reference point" command

•

Pn.35: premagnetising time

The pre-magnetisation time serves to build up a holding torque to minimise the "stall out" of the drive

during ventilation of the brake.

The adjustment of this time and of the brake control-starting value (Pn.37) depends on the mode

(V/F characteristic controlled, vector controlled, etc.) and is described in the items 7.15.5.4 and 7.15.5.5.

•

Pn.36: Brake release time

With begin of the brake ventilation time, the signal to open the brake is issued.

During the brake ventilation time, in which the brake is loosened mechanically, the speed set value (ru.01)

is not yet applied, instead, the brake control-starting value (Pn.37) is still in effect. For vector controlled

systems, Pn.37 must contain the value 0 rpm for synchronous as well as for asynchronous motors.

close brake

The closing of the brake is triggered by disabling the direction of rotation (speed control), reaching of the target

position (positioning), or switching off the modulation (opening of the control release or error).

If the modulation is switched off, the break control output is immediately deactivated so that the brake closes.

In all other cases, the sequence is as follows:

•

Pn.39: Brake delay time

After switching off of the rotation setting, the drive runs to the stopping speed Pn.41 (for vector controlled

drives, this parameter must contain the value 0 rpm) and waits there for the duration of the brake delay

time.

•

Pn.40: Brake closing time

Afterwards, the brake control output is deactivated and the brake takes over the load during the brake

closing time. The inverter remains at the stopping speed Pn.41 during this time.

•

Pn.38: Brake fadeout time

After expiration of the brake closing time (Pn.40), the fadeout time expires. During this time, the current

is lowered to 0. After expiration of the fadeout time, the modulation remains switched on for another 100

ms.

Thereby, the noise that can occur in the motor during a jolt-like shutdown of the current can be preven-

ted.

After the current has been drained, the inverter changes into the status "70: standstill (Modulation off)"

(LS)

The following figure shows the sequence of the brake control without fadeout time. In vector controlled system,

the start- and the stop-value (Pn.37 / Pn.41) must be set to 0 rpm.

Page7.15 - 14

Special Functions

Figure 7.15.5.3 Brake control

Set value

(ru.01)

Actual speed

Stop value

(Pn.41)

Start value

(Pn.37)

Set direction

of rotation for

Inverter

boff

bon

facc

fdec

state

facc

fcon

opened

Brake

closed

Premagneti-

Brake re-

Brake delay

Brake clo-

sing time

lease time

time

sing time

Pn.35

Pn.36

Pn.39

7.15.5.4

Brake control / vector controlled

Premagnetisation and delay time

In vector controlled operation, the drive builds up torque even at the setpoint speed 0. Therefore, no starting or

stopping speed is required (Pn.37 = Pn.41 = 0 rpm).

Thus can the pre-magnetisation time Pn.35, too, be set to zero. The time the drive requires to build up the flux

is always waited for, until the output for loosening the brake is set.

Exception:

If the bit 7 "Wait for magnetisation" in dS.04 "Flux- / rotor adaption mode" is set to "0: off", a pre-magnetisation

time must be parametrised for flux buildup. This setting is permissible only for operation without motor model.

Since, independent of the chosen deceleration ramp, the brake closing time only starts when the actual speed

reaches the value of the stopping speed (= 0 rpm), no brake delay time has to be waited out.

In some applications, however, the brake delay time is used to save time.

If the output for brake control has been deactivated once, the complete brake handling (Brake closing time +

fadeout time + brake opening time) must be executed for a new start of the drive.

By setting a brake delay time, the collapse of the brake can be suppressed for a quick succession of starts (e.g.,

for positioning). Only when the drive remains stationary for a longer period, the brake is closed.

Page7.15 - 15

Special Functions

Optimization of the load transfer

In vector controlled operation, there are another two special functions that optimise the load transfer to the

drive:

•

speed-dependent Ki for the speed controller

For the load transfer, an enormous speed rigidity is often required for hoists or lifts so that the opening of

the brake and the transfer of the load by the inverter is not felt. This rigidity can be achieved by a very large

"K-increase" (cS.10) for the speed controller.

This increase is normally reversed again over an adjustable speed range. For extremely large KI-incre-

ases, this slow reversal cannot be used since the speed controller is then too vibration-prone.

By input of the value "-1: Brake release" in parameter corner speed for max. KI (cS.11), one can achieve

that the "KI-increase" is immediately set to 0 at the end of the brake opening time.

•

Brake precontrol

Without precontrol, the drive must first move, i.e., a system deviation must be built up so that the controller

provides a counter torque.

With the precontrol, the speed controller is preloaded with a torque at the beginning of the brake opening

time. To avoid "stall out", this torque is, in the ideal case, equal to the load to be taken over by the brake.

The precontrol value is set with a ramp within 1/5 of the brake ventilation time.

The function is activated by selecting in Pn.70 "Brake precontrol torque source" how the precontrol value

is to be defined.

Pn.70: Brake pretorque source

Value

Function

0: off

Precontrol function off

1: analog REF

Setting of the precontrol torque in % of the rated torque via the analog channel REF or

2: analog Aux

AUX. The analog signal can come from, e.g., a load weighing setup in a lift cabin.

Setting of the precontrol torque in % of the rated torque via parameter Pn.71 "Pretorque

3: digital % (Pn.71)

reference setting %"

Example: Let a lift be equipped with a counterweight so that for a half-loaded cabin, no holding torque must

be expended.

For an empty cabin, the load weighing setup provides a signal of 0%.

To hold the cabin, the motor requires + rated torque .

For a fully loaded cabin, the load weighing setup provides a signal of 100%.

To hold the cabin, the motor requires + rated torque .

Let the signal from the load weighing setup be connected to AN2, which serves as the AUX-

input.

I.e.:

a signal of 0% on AN2 shall produce a precontrol value of 100%

a signal of +100% on AN2 shall produce a precontrol value of -100%.

"AN2 offset X" (An.16) be equal to 0%, "AN2 lower limit" (An.18) = -100%, and "AN2 upper limit"

(An.19) = 100%

The formula for amplification and offset setting is then for AN2:

Output signal = "AN2 gain" (An.15) * input signal + "AN2 offset Y" (An.17)

This gives, for "AN2 offset Y" = 100% and for "AN2 gain" = -2

Page7.15 - 16

Special Functions

Operation without encoder

Since the settings range of the drive is limited during operation without encoder, no brake handling should be

used for SCL as well as for ASCL.

For SCL, the parameters "Pre-magnetisation time" (Pn.35) and "Brake ventilation time" (Pn.36) are used for the

alignment of the motor with a DC current (see chapter 7.6.3.4 SCL / standstill and starting phase)

7.15.5.5

V/F characteristic controlled operation

Start reference (Pn.37), stop reference (Pn.41)

In V/F characteristic controlled operation, start and stop values must be set to hold the load in standstill and,

respectively, reach standstill after deceleration, so that the brake can collapse again.

The adjustable start/stop value stands in direct connection with the necessary holding torque. A preset value

can be obtained according to the following formula:

(synchronous speed- rated speed) x required holding torque

Start- and, respectively,

——————————————————————————————

stop value =

Rated torque

Based on these value, an adaption to the particular application must be made since other values, e.g., the

boost, also have an effect on the behaviour during load transfer.

Example: Let a 4-pole motor have a rated frequency of 50 Hz and a rated speed of 1460 rpm.

The synchronous speed of the motor is thereby = 1500 rpm and for rated torque and nominal voltage, the slip

speed amounts to 1500 - 1460 = 60 rpm.

If setting a starting value (Pn.37) of 60 rpm, the drive should be able to provide rated torque when loosening

the brake.

Premagnetising time (Pn.35)

So that a torque can be built up, the flux in the motor must have been built up. With beginning of the pre-ma-

gnetisation time, the motor is powered. This time must be long enough for the motor to build up its flux.

Depending on the motor, this time can be between approximately 100 ms (small power) and fractions of a se-

cond (motors with large power).

Brake delay time (Pn.39)

In V/F characteristic controlled operation, the speed follows the predefined deceleration ramp not quite exactly.

After completion of the deceleration ramp, there must therefore be a delay time, to mask dynamic effects.

Page7.15 - 17

Special Functions

7.15.6

Wobbel function

The wobble generator enables in period and amplitude changeable sawtooth process of the setpoint. It is acti-

vated with the parameter oP.44 Bit 0...3 = "1".

7.15.6.a Additional funktion: Wobbel generator

Ramp output value

Wobbel generator

oP.44

oP.47, 48

Bit 0...3

Setpoint va-

oP.44

Bit 4...7

lue

oP.46

AN1 (ru.28)

Amplitude

AN2 (ru.30)

ru.02

AN3 (ru.32)

Diameter signal

digital (oP.45)

oP.49

Diameter correction

Ext. function / Mode (oP.44 Bit 0...3)

Two different functions can be activated with oP.44 bit 0...3. The value is to be added to Bit 4...7.

oP.44: Ext. function mode / source

Bit

Meaning

Value

Function

no external function activated

Wobbel generator active

0...3

mode

Diameter correction (see 7.15.8)

3...15

reserved

Ext. function / Source (oP.44 Bit 4...7)

The input source for the functions is determined with oP.44 Bit 4...7. The value is to be added to Bit 0...3.

oP.44: Ext. function mode / source

Bit

Meaning

Value

Function

Analog input AN1

Analog input AN2

4...7

source

Analog input AN3

digital setting with oP.45

Page7.15 - 18

Special Functions

Ext. function digital source (oP.45)

If the value "49" (sweep function with digital specification) is adjusted in oP.44, the sweep amplitude is preset

with oP.45 within the range of 0...100 %.

Ext. function acceleration/deceleration (oP.46)

With oP.46 a time can be preset between 0,00...20,00 s, with which the sweep amplitude rises/falls. The entered

value refers to a sweep amplitude of 100 %.

Sweep generator acceleration time (oP.47), deceleration time (oP.48)

With oP.47 the acceleration time and with oP.48 the deceleration is adjusted in each case within the range of

0...20,00 s. Together the two parameters result in the period duration of the wobbel period.

7.15.6.b Acceleration and deceleration times of the wobbel generator

Ampl.

+----------

set

f_set

Ampl.

f_set-----------

oP.47

oP.48

Page7.15 - 19

Special Functions

7.15.7Diameter correction

Through the use of the diameter correction the tool path feed rate of a winding product can be kept constant at

changing diameter of the reel bale.

7.15.7 Additional function: Diameter correction

Ramp output value

Wobbel generator

oP.44

oP.47, 48

Bit 0...3

Setpoint

oP.44

value

Bit 4...7

oP.46

AN1 (ru.28)

Amplitude

AN2 (ru.30)

ru.02

AN3 (ru.32)

Diameter signal

digital (oP.45)

oP.49

Diameter correction

Ext. function / mode (oP.44 Bit 0...3)

Two different functions can be activated with oP.44 bit 0...3. The value is to be added to Bit 4...7.

oP.44: Ext. function mode / source

Bit

Meaning

Value

Function

no external function activated

Wobbel generator (see chapter 7.15.7)

0...3

mode

Diameter correction activated

3...15

reserved

Ext. function / Source (oP.44 Bit 4...7)

The input source for the functions is determined with oP.44 Bit 4...7. The value is to be added to Bit 0...3.

oP.44: Ext. function mode / source

Bit

Meaning

Value

Function

Analog input AN1

Analog input AN2

4...7

source

Analog input AN3

digital setting with oP.45

Page7.15 - 20

Special Functions

Ext. function digital source (oP.45)

If the value "50" (sweep function with digital specification) is adjusted in oP.44, the diameter signal can be pre-

set with oP.45 within the range of 0...100 %.

Diameter correction dmin/dmax (oP.49)

The diameter signal is evaluated within the range of 0 % to 100%. Values < 0% are set to 0%, values > 100%

are limited to 100%.

The diameter signal of 0% corresponds to the minimum diameter of the reel bale (d_min). The output frequency/

speed of the ramp generator is not changed in this case. A diameter signal of 100% corresponds to the maxi-

mum diameter of the reel bale (d_max). In order to be able to calculate the frequency/speed change the program

requires the ratio of minimum to maximum diameter (d_min/d_max).

The ratio of minimum to maximum diameter (d_min/d_max) is preset by way of oP.49 and can be adjusted within the

range of 0,010...0,990 with a resolution of 0,001.

The corrected output frequency of the ramp generator is determined as follows:

fn_Ramp

fn_presetting:

—————————

1+DS·(1/oP.49-1)

fn_Ramp:

Output frequency/speed of ramp generator

fn_presetting: Corrected output frequency/speed

DS:

Diameter signal 0 - 100% (0 to 1)

oP.49:

(d_min/dmax)

Ext. function acceleration/deceleration (oP.46)

The rate of change of the diameter signal can be limited by a ramp generator. By way of oP.46 the time can be

preset within the range of 0,00...20,00 s, which is required for a signal difference of 0...100%.

7.15.8Analog Setting of Parameter Values

With this function it is possible to preset parameter values analog. The AUX-function or the motor-poti function

can be adjusted as source.

Analog parameter setting source (An.53)

This parameter determines whether the analog parameter setting occurs via the motor-poti or the aux-func-

tion.

An.53: Analog parameter setting source

Value

Function

AUX

Motorpoti function

Page7.15 - 21

Special Functions

The Bus-address of the parameter, that is to be adjusted in analog mode, is adjusted here (see chapter 11).

Following parameters can be adjusted.

Analog parameter setting destination (An.54)

uF.01 / 07

cn. 04 / 05 / 06

An.32 / 37 / 42 / 48

LE.00 / 01 / 02 / 03 / 04 / 05 / 06 / 07

cS.06 / 09

Ec.4 / 14

PS.31 / 33

In case an invalid parameter address is selected, the message "IdAtA" (or "data invalid" at COMBIVIS) is output

and the setting is ignored.

Analog parameter setting offset (An.55)

Defines the parameter value, that adjusts itself at 0 % analog parameter setting. The parameter value must be

entered with the internal standardization of the target parameter.

Desired value of target parameter

Value to be adjusted = --------------------------------------------------------

Resolution of target parameter

Analog parameter setting max. value (An.56)

Defines the parameter value, that adjusts itself at 100 % analog parameter setting. The parameter value must

be entered with the internal standardization of the target parameter.

Analog parameter setting set pointer (An.57)

An.57 determines the parameter set which edited the selected parameter. If a programmable parameter is ad-

justed as target parameter, the adjusted set in An.57 is edited.

An.57: Analog parameter setting set pointer

Value

Function

-1

active set is edited

0...7

adjusted set is edited

If a non-programmable parameter is adjusted as target parameter, it is always edited in set 0 independent on

An.57.

Page7.15 - 22

CP-Parameter Definition

7.1

Operating and appliance date

Introduction

7.2

Analog in- and outputs I

Summary

7.3

Digital in- and outputs

Hardware

7.4

Setpoint-, rotation- and ramp adjustment

Motor data and controller adjustments of the asynchronous

7.5

Operation

motor

Motor data and controller adjustments of the synchronous

7.6

motor

Selection of Operating

Mode

7.7

Speed control

Initial Start-up

7.8

Torque display and -limiting

7.9

Torque control

Functions

7.10

Current control, -limiting and switching frequencies

Error Assistance

7.11

Speed measurement

Project Design

7.12

Positioning and synchronous control

7.13

Protective functions

10. Networks

7.14

Parameter sets

11. Parameter Overview

7.15

Special functions

12. Annex

7.16

CP-Parameter definition

Page7.16 - 1

CP-Parameter Definition

7.16 CP-parameter definition

Once the development stage of a machine is completed, usually only a few parameters are required for the

adjustment or the control of the inverter. To make the handling easier and the user documentation more un-

derstandable as well as to increase the safety of operation against unauthorized access, the possibility exists

to create the one user surface with the CP-parameters. For that purpose 37 parameters (CP.00...CP.36) are

available, 36 of them (CP.01...CP.36) are free for assignment.

7.16.1Survey

Fig. 7.16.1

Definition structure

Password

CP.0 / ud.1

440

330

200

100

500

Read /

Read

Application mode

Service mode

Write

only

Drive mode

ud.15

CP-mode

Address

ud.16

ru.3

CP.1

Set / norm

ud.17

Address

ud.16

ru. 1

CP.2

Set / norm

ud.17

Address

ud.16

An.4

CP.36

Set / norm

ud.17

With ud.15 the CP-parameter that is to be edited is determined. With ud.16 and ud.17 the CP-parameter is

defined through its address and the respective set. Depending on the adjusted password (CP.0 or ud.1)

- the adjusted parameter is directly displayed in the Service Mode

- the adjusted parameter is displayed as CP-parameter in the CP-Mode

Parameter CP.0 is not programmable, it always contains the password input. If the inverter is in the application

mode or service mode ud.1 is used for the password input.

The parameters ud.15...17 as well as Fr.1 are not permitted as CP-parameter and are acknowledged as invalid

parameter address. When entering an invalid parameter address the parameter is set to „oFF“ (-1). The appro-

priate CP-parameter is not displayed at this setting.

Page7.16 - 3

CP-Parameter Definition

7.16.2Assignment of CP-parameters

CP selector (ud.15)

With ud.15 the CP-parameter to be programmed is adjusted in the range of 1...36. CP.0 is not adjustable.

CP address (ud.16)

ud.16 determines the parameter address (see chapter 11) of the parameter to be displayed:

ud.16

CP-address

Invalid or not exist parame-

ter addresses are ignored with

-1: Parameter not used

„Data invalid“.

0...32767: Parameter address

CP set norm (ud.17)

ud.17 determines the set, the addressing and the standardization of the parameter to be displayed. The para-

meter is bit-coded. The individual bits are decoded as follows:

Determination for direct set addressing

Bit 0...7 determines the set selection for direct set programming, i.e. all selected sets contain the same value,

which is defined by the CP-parameter. If direct set programming (Bit 8, 9) is selected at least one set must be

selected as otherwise an error message is triggered in the cp mode.

Bit

Value

Set

-> Data invalid, if Bit 8 and 9 = 0

0+1

255

All

Page7.16 - 4

CP-Parameter Definition

Determination of set addressing mode

Bit 8 and 9 determine the set addressing:

Bit

Value

Function

direct set-addressing; the sets determined by Bit 0...7 are valid

256

current set; the current set is displayed / edited

512

indirect set addressing, the parameter set determined with the set pointer Fr.9

is displayed / edited

768

reserved

Display standardization

Bit 10...12 determine how the defined parameter value is displayed. Up to seven different user standardizations

(see further on in this chapter) can be determined with the parameters ud.18...21.

Bit

Value

Function

Use standard standardization of the parameter

1024

Display standardization of the parameters ud.18...21 from set 1

2048

Display standardization of the parameters ud.18...21 from set 2

7168

Display standardization of the parameters ud.18...21 from set 7

Page7.16 - 5

CP-Parameter Definition

7.16.3Example

As an example a user menu with the following features shall be programmed:

Display of current actual frequency (ru.3) in the respective set

Adjustment of a fixed frequency / fixed value (oP.21) in set 2

Adjustment of a fixed frequency / fixed value (oP.21) in set 3

Acceleration and deceleration time (oP.28/oP.30) for set 2 and 3

Energy saving factor (uF.7) shall be displayed in set 0 with display standardization 4

1.)

ud.15 = 1

; CP.1

ud.16 = 0203h

; Parameter address for ru.3

ud.17 = 256

; Display in the active set

2.)

ud.15 = 2

; CP.2

ud.16

= 0315h

; Parameter address for oP.21

ud.17 = 4

; Setting in set 2

3.)

ud.15 = 3

; CP.3

ud.16 = 0315h

; Parameter address for oP.21

ud.17 = 8

; Setting in set 3

4.)

ud.15 = 4

; CP.4

ud.16 = 031Ch

; Parameter address for oP.28

ud.17 = 12

; Setting in set 2 and 3

ud.15 = 5

; CP.5

ud.16 = 031Eh

; Parameter address for oP.30

ud.17 = 12

; Setting in set 2 and 3

5.)

ud.15 = 6

; CP.6

ud.16 = 0507h

; Parameter address for uF.7

ud.17 = 4097

; Setting in set 0 and display standardization 4

6.)

ud.15 = 7

; CP.7

ud.16 = -1: off

; CP.7 not displayed

ud.17 = xxx

; ud.17 no function

Adjust all other parameter sets to „off“, so that no indication occurs.

The acceptance of the values takes place only after Power-On-Reset of the operator.

Page7.16 - 6

CP-Parameter Definition

7.16.4Display standardization

The KEB COMBIVERT gives the user the possibility to define his own standardizations (e.g. km/h or bottles/

min) in the CP-Mode. The parameters ud.18...20 are used for conversion, ud.21 for specifying the method of

calculation, the decimal places as well as the units indicated in KEB COMBIVIS.

7.16.4 Definition of own standardization

ud.19 numerator

± 32767

CP.xx = (selected parameter + ud.20) x ud.19 x

unit

Standard

ud.18

ud.20 offset

ud.18 denominator

± 32767

ud.21 display flags

0...1791

ud.19 numerator

± 32767

Inverted

CP.xx =

ud.19

x unit

(selected parameter + ud.20) x ud.18

ud.20 offset

ud.18 denominator

± 32767

The unstandardized value or the standardized value/resolution is always used for the „selected parameter“ !

ud.18 Divisor display norm

Adjusts the divisor in the range of ±32767 (default 1). The parameter is set-programmable.

ud.19 Multiplier display norm

Adjusts the multiplier in the range of ±32767 (default 1). The parameter is set-programmable.

ud.20 Offset display norm

Adjusts the offset in the range of ±32767 (default 0). The parameter is set-programmable.

Page7.16 - 7

CP-Parameter Definition

ud.21 Control display norm

With ud.21 the calculation mode, the decimal places as well as the units indicated in KEB COMBIVIS are adju-

sted. The parameter is bit-coded and set-programmable. It is adjustable in the range of 0...1791.

Bit 12...15

Bit 11...8

Bit 7...6

Bit 5...0

ud.21

see table 1

unit

see table 2

Calculation mode

see table 3

Representation

free

Table 1 Unit (Bit 0...5)

Value

unit

Value

unit

Value

unit

Value

unit

km/h

lbin

rpm

in/s

ft/s

kHz

ft/min

inc

ft/s²

ft/s³

KWh

MPH

psi

°F

kVA

kNm

m/s

m/s²

m/s³

°C

lbft

Page7.16 - 8

CP-Parameter Definition

Table 2 Calculation mode (Bit 6...7)

Value

Function

ud.19

(selected parameter + ud.20) x

= CP.xx

———

ud.18

ud.19

= CP.xx

———————————————————

(selected parameter + ud.20) x ud.18

free

The unstandardized value is always used for the „selected parameter“!

unstandardized value = standardized value / resolution

Table 3 Representation (Bit 8...11)

Value

Representation

0 decimal places

256

1 decimal place

512

2 decimal places

768

3 decimal places

1024

4 decimal places

1280

variable decimal places

1536

Hexadecimal

free

Example

The actual frequency shall be displayed in CP.1 in rpm. Display standardization from set 4.

ud.15 = 1

; CP.1

ud.16 = 0203h

; Actual frequency ru.3

ud.17 = 4352

; Display in current set, display standardization from set 4

Set 4 ud.18 = 80

; Conversion from 1/80 Hz into rpm without pole pair number

Set 4 ud.19 = 60

Set 4 ud.20 = 0; no Offset

Set 4 ud.21 = 17

; Unit rpm; direct calculation mode;no decimal place

7.16.5Variable standardization

Page7.16 - 9

KEB COMBIVERT F5-A,-E,-H 4.0. APPLICATION MANUAL (2008) - page 22