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

Parameter Sets

Parameters only with KEB-Default value

Bit 27 is set in characteristics 2 for parameters, which contains only the KEB default value. These are among

others all security parameters and all write protected parameters.

During loading the specific default values (fr.01 = -5..-8) these parameters are loaded with KEB default values

if necessary.

Indirect addressed Parameters

The indicator parameter (first parameter of an indirect addressed group) has not a customer default value, be-

cause the parameter was set to 0 with Power-On-Reset. The parameters belonging to the group have a default

value for each value of the indicator.

Storing the custom-specific default values

A source table is generated. For this one byte is reserved for each parameter in the sequence of the bus

addresses. This byte contains the information for each set, whether the default value is determined from the

parameter definition (= 0, KEB default value) or if the value is stored in the custom-specific storage area (= 1).

This information is determined by comparison to the KEB default value.

For indirect addressed parameters the number of reserved bytes for each group member is equal to the number

of valid values of the indicator. 36 byte are reserved for ud.16 and ud.17, ud.15 = 1...36. 16 byte are reserved

for ps.24...27, ps.23 = 0...15. The custom-specific default values are stored in the sequence of the bus addres-

ses (ascending) set depending (set 7..0).

The custom-specific default values for indirect addressed parameters are stored first to bus address (ascen-

ding), then to indicator value (max

min.), then set-dependent (set 7..0).

Example: Default value ud.09, default values ud.16 for ud.15 = 36..1, default values ud.17 for ud.15 = 36..1,

default values ud.18 for set 7..0, etc.

Copy custom-specific default values in the sets

With the bits in the source table the default value for each set is determined either from the parameter definition

for each parameter in the sequence of the bus address or read-out from the custom-specific memory area and

written into the parameter.

Parameters only with KEB default value are loaded with the KEB default value in this case.

Reset of the custom-specific default values

The default values are reset for all parameters to KEB default values in the following cases:

All parameters are set to default values (initial loading)

The version identification of the software changes (new version, or new date code)

The control type is changed (ud.02 bit 2+3)

Page7.14 - 6

Parameter Sets

The custom-specific default values can be reset manually as follows:

Loading KEB default values in all sets (fr.01 = -4)

Storing defaul values (fr.01 = -9)

Changed power unit or encoder identifier, changeover standard/US setting

The power unit identification was changed:

The power unit identifiction dependent KEB default values are adapted.

If necessary uf.11 is limited in all sets to the maximal switching frequency (in.03).

If a custom-specific default value of uf.11 is not within the value range (0..in.03)uF.11 is loaded during

default value loading in the corresponding set with the KEB default value.

If the write value of sy.03 is unequal to the reading power unit identification, all customer and system

parameters are loaded with KEB default values (corresponding Fr.01 = -4).

The encoder identifier was changed:

The encoder identifier dependent KEB default values are adapted.

EC-Parameters are loaded with KEB default values.

Changeover standard/US setting (change in.21 bit 0 at in.20 = 32):

The KEB default values depending on this setting are adapted.

Customer and system parameters are loaded with KEB default values (corresponding to Fr.01 = -4).

Memory management

The length of the source table (in byte) and the length of the memory area of the customer default values (in

byte) are stored in one word at the end of the external RAM.

The source table for the custom-specific default value range is in front of these two cells. The length is depen-

dent on the number of permitted parameters of the adjusted control type (ud.02 bit 2+3)

The memory area for the custom-specific default values starts next to the source table. The length is dependent

on the number of values stored here. Only the values which are different to the KEB default values are stored.

The default values are stored in descending order of memory addresses.

The off-line memory includes the period between the temporary variables and the memory area for the custom-

specific default values. The size of the off-line memory is depending on the number of custom-specific default

values.

Complete use of the available memory

Fr.01 = -10 (customer default memory is full) is set if the memory area is completely filled with custom-specific

default values, all values could not be stored.

That means only one part of the parameter setting (with low bus addresses) contain custom-specific default

values, further settings only contain KEB default values.

This restriction should not occur since enough memory is available.

Page7.14 - 7

Parameter Sets

7.14.7Parameter set selection

Figure 7.14.7 Principle of the parameter set selection

2²

2¹

2⁰

76543

76543 21

digital

set selection deacti-

Fr.4 via

terminal strip

SY.50 with

Terminal strip

vated

keyboard/bus

binary coded

control word

binary coded

always set 0 active

ST>RST>...>ID

ID>IC>...>ST

(only bus)

1234

ATTENTION! The valency at Fr.2

Fr.2

= 2...4 is generally ID > IC > ...>ST.

The sequence above refers to the

priority.

Parameter set 0...7

Fr.3 Parameter set lock

selected set

yes

Error message

Set 0...7 (Value 0...255)

locked ?

E.SEt

Actual Parameter set

Fr.02 Source parameter set

As shown in Fig. 7.14.7, with Fr.02 it is defined whether the parameter set selection is enabled or disabled via

keyboard/Bus (Fr.04), the terminal strip or via control word (SY.50). The selection is activated with „Enter".

Fr.02: Parameter set source

Value

Function

Set selection deactivated; set 0 always active

Set selection via keyboard/bus with Fr.4

Set selection binary-coded via terminal strip

Set selection input-coded via terminal strip

Priority: ST>RST>R>F>I1>I2>I3>I4>IA>IB>IC>ID

Set selection input-coded via terminal strip

Priority: ID>IC>IB>IA>I4>I3>I2>I1>R>F>RST>ST

Set selection via control word SY.50

Fr.04 Parameter set setting

This parameter can be written by bus as well as by keyboard. The desired parameter set (0...7) is preadjusted

directly as value and activated with „Enter“.

Page7.14 - 8

Parameter Sets

Fr.07 Parameter set input selection

The adjustment via terminal strip can be made binary-coded or input-coded. The inputs are defined with pa-

rameter Fr.07. With binary-coded set selection maximally 3 inputs should be programmed to set selection to

avoid set selection errors.

Fr.10: Load mot. dependent parameter

Bit

Value

Input

Terminal

1 ¹⁾

ST (prog. input „control release/reset“)

X2A.16

RST (prog. input „reset“)

X2A.17

F (prog. input „forward“)

X2A.14

R (prog. input „reverse“)

X2A.15

I1 (prog. input 1)

X2A.10

I2 prog. input 2)

X2A.11

I3 (prog. input 3)

X2A.12

128

I4 (prog. input 4)

X2A.13

256

IA (internal input A)

512

IB (internal input B)

1024

IC (internal input C)

2048

ID (internal input D)

¹⁾ The input ST is occupied by hardware means with the function „Control release“. Further functions can be

adjusted only „additionally“.

Example

For input-coded set selection (Fr.02=3) I1, I2 and F are defined for set selection.In this case F = set1; I1 =

set2 and I2 = set3 would be acticated as the valence is (I2>I1>F). If I1 and I2 are triggered simulateously the

inverter switches into set2 since the priority is F>I1>I2 at Fr.02=3.

Binary-coded set selection

With binary-coded set selection

maximally three of the internal or external inputs may be programmed to set selection (2³=8 sets) to

avoid set selection errors.

the valence of the inputs programmed for set selection rises

(ID>IC>IB>IA>I4>I3>I2>I1>R>F>RST>ST)

Page7.14 - 9

Parameter Sets

Example 1: With 3 inputs (F, I1 and I4) set 0...7 shall be selected

1.)

Adjust parameter Fr. 07 to value „148“

2.)

Adjust Fr.02 to value „2“ (set selection binary-coded via terminal strip)

Input

2²

2¹

2⁰

set

Set 7

Set 6

Set 5

Set 4

Set 3

Set 2

Set 1

Set 0

Input-coded set selection

With input-coded set selection

maximally 7 of the internal or external inputs may be programmed to set selection (0...7

sets) to avoid set selection errors.

the lowest of the selected inputs has priority at Fr.02 = „3“

(ST>RST>R>F>I1>I2>I3>I4>IA>IB>IC>ID)

the highest of the selected inputs has priority at Fr.02 = „4“

(ID>IC>IB>IA>I4>I3>I2>I1>R>F>RST>ST)

Page7.14 - 10

Parameter Sets

Example 1: With 5 inputs (I1, I2, I4, IB and ID) set 0...5 shall be selected.

1.)

Adjust parameter Fr. 07 to value „2736“

2.)

Adjust Fr.02 to value „3“ (set selection input-coded via terminal strip)

set

Fr.02 =

set

Reset set input selection (fr.11)

The parameter Fr.11 defines an input, with which one can switch independently of the current parameter set in

to parameter set 0. This function is only active at Fr.02 = 0...4.

with static input assignment the inverter remains in set 0 as long as the input is set.

with edge-triggered inputs set 0 is always activated with the 1st edge. With the 2 nd edge the set activa-

ted by the other inputs is selected again.

Page7.14 - 11

Parameter Sets

Set change mode modulation on (Fr.12)

Parameter Fr.12 adjusts the behavior at set change. A motor set change without parameter set changes is only

possible when the modulation is switched off.

If the set change is disabled and the modulation is switched on, then a planned set change releases the errror

‘set selection error‘ (E.SET, A.SET). The set change is done, as soon as the modulation is switched off.

Fr.12: Set change mode mod. on

Bit

Meaning

Value

Set change mode

0: enable / 1: inhibited

Mode motor set change

0: enable / 1: inhibited

Bit 1 has no function at F5-S, since only one motor set is available here.

7.14.8Locking of parameter sets

Fr.03 Parameter set lock

Parameter sets, that shall not and must not be selected, can be locked with Fr.03. If one of the locked sets is

selected, the adjusted response in Pn.18 is executed (default: set selection error (E.SEt).

Value

Locked set

Example (set 2 and 5 inhibited)

128

Sum 36

Page7.14 - 12

Parameter Sets

7.14.9Parameter set ON/OFF delay (Fr.05, Fr.06)

With these parameters the time is adjusted,

- with which the activation of a new set is delayed (Fr.05)

- with which the deactivation of an old set is delayed (Fr.06)

In the case of set changeover the OFF time of the old set and ON time of the new set are added up.

Picture 7.14.9 On and off delay

Set 3

Set 2

Set 1

Current set

Set 0

Set 3

Set 2

Adjusted set

Set 1

Set 0

Example

ON delay for set 3 of 2s

off

OFF delay for set 3 of 2s

set

Fr.5

Fr.6

OFF delay for set 2 of 1s +

ON delay for set 1 of 2 s

immediate changeover as no delay is adjusted

1 s

OFF delay for set 2 of 1s +

ON delay for set 3 of 2s

OFF delay for set 3 of 2s

Page7.14 - 13

Special Functions

7.1

Operating and appliance data

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

Page7.15 - 1

Special Functions

7.15.1

DC-braking

7.15 - 3

7.15.1.1

V/F characteristic control

7.15 - 5

7.15.1.2

Speed-controlled operation without feedback (ASCL)

7.15 - 5

7.15.2

Energy Saving Function

7.15 - 5

7.15.3

Motorpoti Function

7.15 - 6

7.15.4

Timer and Counter

7.15 - 9

7.15.5

Brake Control

7.15 - 12

7.15.5.1

Brake control mode

7.15 - 13

7.15.5.2

Monitoring of the brake control

7.15 - 13

7.15.5.3

Sequence of the brake control

7.15 - 14

7.15.5.4

Brake control / vector controlled

7.15 - 15

7.15.5.5

V/F characteristic controlled operation

7.15 - 17

7.15.6

Wobbel function

7.15 - 18

7.15.7

Diameter correction

7.15 - 20

7.15.8

Analog Setting of Parameter Values

7.15 - 21

Page7.15 - 2

Special Functions

7.15

Special functions

The following section should facilitate the adjustment and programming of special functions.

7.15.1DC-braking

The DC braking is available:

in software type F5-A (standard software), for V/F characteristic control of asynchronous motors (control

type F5-M and cS.00/ control mode < 4)

in software type F5-H in vector controlled operation of asynchronous motors without encoder feedback

(cS.01/ actual value source = "2: calculated actual value") and

at V/F characteristic control (cS.00/ control mode < 4)

During the DC-braking the motor is not decelerated over the ramp. The braking is done with a DC voltage and

a DC current, respectively, that is applied to the motor winding.

After activation of the DC braking, the modulation is switched off and the base-block time (base-block time,

duration dependent on the power circuit) waited for until the DC value is applied to the motor.

With Pn.28 one adjusts through what the DC-brake is triggered. According to the adjusted mode one can preset

with Pn.32 the speed from which the DC-brake is triggered.

Pn.30 "DC braking time" determines the braking time (0..100,00 s).

Pn.29 is bit-coded and defines the inputs which trigger DC-braking.

Page7.15 - 3

Special Functions

Pn.28: DC braking mode

Bit

Meaning

Value

Explanation

0: no DC braking

DC braking is never triggered

DC braking, if the setpoint reaches 0 U/min according to the ramp

1: no direction of rota-

generator (ru.02 "Ramp output display") and the rotation setting is

tion and actual value

missing. The braking time is determined by Pn.30 (independent of

= 0

the actual speed). If the rotation setting is applied again, the DC

braking is aborted.

DC braking after removal of the rotation setting. The braking time

2: disabling the direc-

is dependent on Pn.30 and the actual frequency. ^{1, 2}

tion of rotation

Re-application of the rotation setting does not abort the DC bra-

king.

DC braking as soon as the rotation setting changes (different di-

rection of rotation or no setting). The braking time is dependent on

3: Change of direction

Pn.30 and the actual frequency (ru.03).^{1, 2}

of rotation

Re-application of the rotation setting does not abort the DC bra-

king.

DC braking if the actual frequency ru.03² is lower than Pn.32 "DC-

4: no direction of rota-

braking start level" and the rotation setting is missing. The braking

tion and actual value

time is dependent on Pn.30 and Pn.32 ³

< Pn.32

Re-application of the rotation setting does not abort the DC bra-

king.

0..3

DC braking if the actual frequency ru.03 ¹ is lower than Pn.32 "DC

braking start level" and the rotation setting is missing. The braking

5: Deceleration and

time is dependent on Pn.30 and Pn.32 ³

DC Braking

actual value < Pn.32

Re-application of the rotation setting does not abort the DC bra-

Mode

king.

The setpoint before the ramp generator (ru.01 "Setpoint display)

is smaller than Pn.32 "DC-braking start level". The braking time is

1, 2

dependent on Pn.30 and the actual frequency (ru.03).

6: Setpoint < Pn.32

To leave the status "22: Standstill after DC-braking" , ru.01 must

be greater than Pn.32 + LE.16 "freq/speed hysteresis". An incre-

ase of the setpoint does not abort the DC braking.

DC braking, as soon as an input programmed to the DC-brake

7: Digital input time-

(Pn.29) is active. The braking time is dependent on Pn.30 and the

limited

actual frequency (ru.03). 1,²

restart only after the input is deactivated.

8: as long as the digi-

DC-braking as long as an input programmed to DC-braking is ac-

tal input is set

tive.

9: at start of the mo-

DC-braking after enabling the modulation (direction of rotation +

dulation

control release) for the time Pn.30.

DC braking according to the conditions programmed in bit 4..7.

10: Conditions

The braking time is equal to Pn.30 "DC-braking time"

16: DCB after nop

DC braking after status "0: no control release" ⁴

32: DCB at switch on

DC braking after power-on-reset (power on) ⁴

64: DCB for auto-

DC braking after automatic restart ⁴

retry

128: DCB after LS

DC braking after status "70: standstill" ⁴

Page7.15 - 4

Special Functions

The braking time is dependent on the actual frequency (ru.03), not on the actual speed (ru.07). The re-

ference value for the calculation of the braking time, however, is a speed (dependent on ud.02 "Control

type", for "4: F5-M / 4000 rpm" the reference value is 1000 rpm). To calculate the braking time, the actual

frequency (ru.03) must therefore be converted to a speed according to the following formula:

ru.03 * 60

———————————

pole-pair number of the

motor

Actual braking time = Pn.30 * ru.03 * 60 / pole-pair number of the motor / reference value (The reference

value is dependent on ud.02 "Control type". In 4000 rpm-mode, the reference value is 1000 rpm, in 8000

rpm-mode, 2000 rpm, etc.)

Actual braking time = Pn.30 * Pn.32 / reference value (The reference value is dependent on ud.02 "Con-

trol type". In 4000 rpm-mode, the reference value is 1000 rpm, in 8000 U/min-mode, 2000 rpm, etc.)

These adjustment are operative only if in Bit 0...3 "DC-brake mode" the value "10: conditions" is chosen.

If the same condition is also set for speed search, DC-brake has priority.

7.15.1.1

V/F characteristic control

In V/F characteristic control, a DC voltage is applied to the motor. With Pn.31 "DC braking max. voltage", the

max. braking voltage is set.

The current is limited only by the inverter. If the inverter is oversized compared to the motor, the maximum bra-

king voltage (Pn.31) must be decreased to avoid overheating of the motor.

At large ratings the maximum braking voltage can lead to overcurrent errors (E.OC). In that case reduce it with

Pn31.

7.15.1.2

Speed-controlled operation without feedback (ASCL)

In ASCL-mode, a DC current is impressed on the motor.

With Pn.33 "DC braking max. current ASCL", the braking current is set. The current can be predefined in a

range of 0...400.0% with respect to the rated motor current (dr.00).

The current is limited above by the permissible standstill current (see technical data of the corresponding inver-

ter) or, if in dS.03 the maximum current mode is activated, by dr.37 "Maximum current". The lower limit is given

by the magnetising current.

After completion of the DC braking function, the rated flux of the machine must flow before the motor is started.

To that end, "Wait for magnetisation = 128: on" (Bit 7 = 1) must be programmed in Parameter dS.04 . The torque

display is not valid in the DC braking (display always = 0 Nm).

7.15.2Energy Saving Function

The energy saving function allows the lowering or raising of the current output voltage. In accordance with the

activation conditions defined in uF.6, the voltage valid according to the V/Hz-characteristic is changed in per-

cent onto the energy saving level (uF.07).

However, the maximal output voltage cannot be higher than the input voltage even if the value is > 100 %. The

function is used for example in cyclic executed load/no-load applications. During the no-load phase the speed

is maintained, but energy is saved as a result of the voltage reduction.

Page7.15 - 5

Special Functions

uF.07

Energy saving factor

0,0…130,0 % (default 70 %)

uF.06

Energy saving mode

Bit 0...3

Energy saving function / activation

generally off

generally active

at actual value = setpoint

uf.08

Energy saving input

by digital input

selection

at clockwise rotation

at counter clockwise rotation

0...4095 (Default 0)

also see 7.3

by constant run clockwise rotation

"Digital inputs"

by constant run counter clockwise rotation

8...15

reserved

Bit 4...6

Energy saving function / ramp time

Default time ca. 1,6 s

Default time

Default time / 2

Default time / 4

Default time / 8

Default time / 16

f_actual; n_actual; U_A

Hysteresis

f_set; n_set

uF.7

Example: uF.6 = 2, uF.7 = 50 %

7.15.3Motorpoti Function

This function simulates a mechanic motor potentiometer. Over two inputs the motor potentiometer value can

be increased or decreased.

Fig. 7.15.3

Motorpoti function

oP.50: Motorpoti function

Bit

Value

Meaning

Value is changed in the current set

Value is changed only in set 0

no motorpoti reset after power on

Reset to oP.55 after power on

Page7.15 - 6

Special Functions

100%

oP.54

oP.55

oP.59

oP.53

-100%

oP.56 Increase motor poti value

input selection

oP.57 Decrease motor poti value

input selection

oP.58 Reset on oP.55

input selection

oP.52 Motor poti / Value

Input selection

ru.37 Motor poti act. value

Setting via parameter

-100...0...100%

± 100%

(oP.59 is being ignored)

Determine inputs (oP.56...oP.58)

In the first step two inputs must be defined with which the motor potentiometer can be increased or decreased.

For that purpose one input each according to the input table is assigned to the parameters oP.56 and oP.57. If

both inputs are triggered simultaneously, the potentiometer value is decreased.

Increase motorpoti

Decrease motorpoti

value

↓

oP.56

oP.57

Another input (oP.58) can be used to reset the motor potentiometer to the adjusted reset value oP.55.

Page7.15 - 7

Special Functions

Input table

Bit -No.

Decimal

Input

Terminal

value

ST (prog. input "control release/reset")

X2A.16

RST (prog. input "reset")

X2A.17

F (prog. input "forward")

X2A.14

R (prog. input "reverse")

X2A.15

I1 (prog. input 1)

X2A.10

I2 prog. input 2)

X2A.11

I3 (prog. input 3)

X2A.12

128

I4 (prog. input 4)

X2A.13

256

IA (internal input A)

512

IB (internal input B)

1024

IC (internal input C)

2048

ID (internal input D)

Motorpoti function (oP.50)

The basic working method of the motor potentiometer is defined with oP.50. The parameter is bit-coded.

oP.50: Motorpoti function

Bit

Meaning

Value

Explanation

Motor potentiometer value is changed in the active para-

meter set (displayed in ru.26). Functions using the motor

Target set of the

0: Act. set (ru.26)

potentiometer value work with the value of the current

motor potentio-

set.

meter value

Motor poti value is changed in set 0 Functions using the

1: Set 0

motor potentiometer value work with the value of set 0.

0: no reset

Motor potentiometer value remains stored on power off

Reset at switch

Motor potentiometer value is written to the value of oP.55

2: Reset to oP.55

"Motor potentiometer reset value" in all set on power on

The adjustment of the motor potentiometer value occurs

0: Set 0

with the value of oP.59 "Motor potentiometer inc/dec time"

Source of the

from set 0.

ramp time

The adjustment of the motor potentiometer value occurs

4: Act. set (ru.26)

with the value of oP.59 "Motor potentiometer inc/dec time"

from the active set

Motorpoti inc / dec time (oP.59)

With this parameter a time is defined, which the motor potentiometer needs in order to run from 0...100%. The

time is adjustable between 0...50000 s.

Page7.15 - 8

Special Functions

Control range (oP.53, oP.54)

The correcting range is limited by the parameters oP.53 "Motor poti min. value" and oP.54 "Motor poti max.

value" (see Fig. 7.15.3).

Display of motor potentiometer value (ru.37)

This parameter shows the current value of the motor potentiometer in percent.

Motor potentiometer value (oP.52)

A percentage value can be set directly by operator or bus via this parameter. The ramp time remains unconsi-

dered at this setting.

The parameter value is limited by oP.53 / oP.54. If a digital input is set for increasing or decreasing the motor

potentiometer value, the value of oP.52 changes.

7.15.4Timer and Counter

Two timers are incorporated in the COMBIVERT. As long as one of the adjustable starting conditions (LE.18/23)

or a programmable input (LE.17/22) is set, the timer counts until reaching the final range value. If one of the re-

set conditions (LE.20/25) is fulfilled or one programmable input (LE.19/24) is set, the timer jumps back to zero.

The clock source and the counting direction is adjusted with LE.21/26. It can be counted in seconds, hours or

by a special programmed input for that. The current timer content is displayed in ru.43/44. On reaching an ad-

justable comparison level (LE.00...07), the switching condition 37/38 is set. It can be used to set an output.

Fig. 7.15.4

Timer programming

continues to count

Is a

Timer counts up to maximum

Reset condition

Switching condition

LE.21 Timer 1 /

value; down to 0, if a condition

yes

of LE.20 or LE.19

Timer value > Level

37 "Timer 1 > Level A"

Mode

of LE.18 is fulfilled or an input

fulfilled ?

LE.0...LE.7 ?

is being set!

of LE.17 is set

ru.43 Timer 1 Display

yes

Resetting to zero

continues to count

Is a

Timer counts up to maximum

Is a reset

yes

Switching condition

LE.26 Timer 2 /

value; down to 0, if a condition

condition of

Timer value > Level

38 "Timer 2 > Level A"

Mode

of LE.23 is fulfilled or an input

LE.25 or LE.24

LE.0...LE.7 ?

is being set!

of LE.22 is set

fulfilled ?

ru.44 Display timer 2

yes

Resetting to zero

Timer mode (LE.21 / LE.26)

Page7.15 - 9

Special Functions

LE.21 and LE.26 determine the clock source and the counting direction of timer 1 and 2. Clock pulse source can

be the time counter in 0.01s or 0.01h grid, pulses from a digital input, or revolutions of the encoder on encoder

channel 1. The timer runs generally as long as a starting condition is active. After a reset the timer starts again

at zero. Following clock sources can be selected:

LE.21 / LE.26: Timer 1 / 2 mode

Bit

Meaning

Value

Explanation

0: 0,01s (internally

The timer value increases / decreases every 10 ms by 0.01

clock)

1: 0,01h (internally

The timer value increases / decreases every 36s by 0.01

clock)

2: every edge T1-I3 /

Each edge on I3 (for timer 1) or I4 (for timer 2) increases /

Selection clock

T2-I4

decreases the timer value by 0.01

0...2

pulse source

3: positive edge T1-I3

A rising edge on I3 (for timer 1) or I4 (for timer 2) increases /

/ T2-I4

decreases the timer value by 0.01

Each revolution (clockwise rotation and counter clockwise

4: Rotation encoder 1

rotation) of the encoder on channel 1 increases / decreases

the timer value by 0.01

5...7: reserved

0: upward

The counting direction of the timer is always upwards

8: Dependent on the

actual speed FOR =

upward

Counting

REV=downward

The counting direction of the timer is dependent on the cur-

3,4

direction

16: Dependent on the

rent direction of rotation

actual speed FOR =

downward

REV = upward

24: reserved

The timer stops on reaching the maximum value of 655.35 or

0: Stop at limit

the minimum value of 0

Overflow be-

The timer always runs through. After reaching of the maxi-

haviour

1: Reset and further

mum value (655.35) the timer starts again at 0. After reaching

of the minimum value (0) the timer starts again at 655.35.

Timer start condition (LE.18 / LE.23)

Page7.15 - 10

Special Functions

From the following table the conditions can be selected at which the timer is started. The individual conditions

are OR-operated with the Timer start input selection (LE.17/LE.22).

LE.18 / LE.23: Timer 1 / 2 start condition

Bit

Value

Timer / Starting condition

Modulation on

Modulation off

Actual freq. =setpoint freq.

Modulation off and no power on

In case of several starting conditions the values are to be added up.

Timer start input selection (LE.17 / LE.22)

Additionally the timer can be activated by one or several inputs. The sum of the valences is to be entered, if

the timer shall be started by different inputs The individual inputs are OR-operated. The start input selection is

OR-operated with the timer / starting condition (LE.18/LE.22).

Bit

Value

Input

Terminal

ST (prog. input "control release/reset")

X2A.16

RST (prog. input "reset")

X2A.17

F (prog. input "forward")

X2A.14

R (prog. input "reverse")

X2A.15

I1 (prog. input 1)

X2A.10

I2 prog. input 2)

X2A.11

I3 (prog. input 3)

X2A.12

128

I4 (prog. input 4)

X2A.13

256

IA (internal input A)

512

IB (internal input B)

1024

IC (internal input C)

2048

ID (internal input D)

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.

Timer reset input selection (LE.19 / LE.24)

According to the following table the inputs with which the timer is reset can be specified. The individual inputs

are OR-operated, i.e. if one of the specified inputs is triggered, the timer jumps back to zero. If a starting and

reset condition are active simultaneously, reset has priority.

(see table "Timer start input selection (LE.17 / LE.22)")

Page7.15 - 11

KEB COMBIVERT F5-A,-E,-H 4.0. APPLICATION MANUAL (2008) - page 21