SEW-Eurodrive MOVITRAC LT Series

Operating Instructions – MOVITRAC® LT Option Cards
31
8
Operation
PI Controller
8.5 Operation
The PI controller card must be set up by adjusting the proportional gain, reference volt-
age preset and integral gain. The following diagram shows the schematic operation of
the PI controller card.
8.5.1 Potentiometer 1 (POT1): Proportional gain adjust
The proportional gain of the PI controller is adjusted using POT1. Minimum gain is
achieved by turning the potentiometer fully counterclockwise (5 turns).
SEW-EURODRIVE recommends using this setting as the starting point during startup
of this option with the MOVITRAC
®
LT in any application.
65765AEN
65771AEN
0
2
4
6
8
10
12
0 0,5 1 1,5 2 2,5
Output Voltage [V]
Time
Setpoint
Actual value
Upper Limit (10V)
Reference Voltage preset (offset)
–
+
Reference voltage
preset (Offset)
Setpoint
Output PI
(actual value)
Proportional gain Integral gain
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