Motorized Potentiometer - Siemens SINAMICS S150 Operating Instructions Manual

6.5.2

Motorized potentiometer

Description
The digital motorized potentiometer enables you to set speeds remotely using switching
signals (+/- keys). It is activated via terminals or PROFIBUS. As long as a logical 1 is present
at signal input "MOP raise" (setpoint higher), the internal numerator integrates the setpoint.
You can set the integration time (time taken for the setpoint to increase) using parameter
p1047. In the same way, you can decrease the setpoint using signal input "MOP lower". The
deceleration ramp can be set using parameter p1048.
Configuration parameter p1030.0 = 1 (default setting = 0) is used to activate that the actual
motorized potentiometer is saved in a non-volatile fashion when powering-down the drive
unit. When powering-up the drive unit, the starting (initial) value of the motorized
potentiometer is set to the last, actual value that was present when the drive unit was
powered-down.
Prerequisites
The default setting for the motorized potentiometer was chosen during commissioning:
• STARTER:
• AOP30:
Signal flow diagram
Figure 6-18
Function diagram
FD 3020
Drive converter cabinet units
Operating Instructions, 07/07, A5E00288214A
"Motorized potentiometer"
"3: Motorized potentiometer"
Signal flow diagram: Motorized potentiometer
Motorized potentiometer
Operation
6.5 Setpoint sources
197