Siemens SINAMICS G120P, Operating Instructions Manual

Page: 345 / 496

Functions
7.3 Setpoints
Inverter cabinet units
Operating Instructions, 12/2014, A5E32923362A
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7.3.3 Motorized potentiometer as setpoint source
The "Motorized potentiometer" function emulates an electromechanical potentiometer. The
output value of the motorized potentiometer can be continually set using the "up" and "down"
control signals.
Interconnecting the motorized potentiometer (MOP) with the setpoint source
Figure 7-10 Motorized potentiometer as setpoint source
Table 7- 9 Basic setup of motorized potentiometer
Parameter Description
p1047 MOP ramp-up time (factory setting 10 s)
p1048 MOP ramp-down time (factory setting 10 s)
p1040 MOP start value (factory setting 0 rpm)
Defines the start value [rpm], which is effective when first switching the motor on.
Table 7- 10 Setting the MOP as setpoint source
Parameter Remark
p1070 = 1050 Main setpoint
Interconnects the main setpoint with MOP.
p1035 Motorized potentiometer, increase setpoint
Interconnects this signal, for example with a digital input of your choice:
p1035 = 722.1 (digital input 1)
p1036 Motorized potentiometer, decrease setpoint
Interconnects this signal, for example with a digital input of your choice.