KEB COMBIVERT F5-A, Applications Manual, Page: 443 / 552

Special functions
© KEB, 2012-10 COMBIVERT F5-A, -E, -H Page 7.15 - 11
7
3, 4
Counting di-
rection
0: upward The counting direction of the timer is always upwards
8: Dependent on the
actual speed FOR =
upwards
REV=downward
The counting direction of the timer is dependent on the cur-
rent direction of rotation
16: Dependent on the
actual speed FOR =
downward
REV = upward
24: reserved
5
Overflow be
-
haviour
0: Stop at limit
The timer stops on reaching the maximum value of 655.35
or the minimum value of 0
1: Reset and further
The timer always runs through. After reaching of the ma-
ximum value (655.35) the timer starts again at 0. After re-
aching of the minimum value (0) the timer starts again at
655.35.
Timer start condition (LE.18 / LE.23)
The timer start conditions can be selected from the following table. The individual conditions are OR-operated
with the timer start input selection (LE.17/LE.22).
LE.18 / LE.23: Timer / Starting condition
Bit Va-
lue
Timer / Starting condition
0 1 Modulation on
1 2 Modulation off
2 4 Actual freq. =setpoint freq.
3 8 Modulation off and no power on
The values must be added in case of several starting conditions.
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).
LE.17 / LE.22: Timer start input selection
Bit Value Input Terminal
0 1 ST (prog. input „control release/reset“) X2A.16
1 2 RST (prog. input „reset“) X2A.17
2 4 F (prog. input „forward“) X2A.14
3 8 R (prog. input „reverse“) X2A.15
4 16 I1 (prog. input 1) X2A.10
5 32 I2 (prog. input 2) X2A.11
6 64 I3 (prog. input 3) X2A.12
7 128 I4 (prog. input 4) X2A.13