Motorized Potentiometer - Siemens SINAMICS G150 Operating Instructions Manual

F3505 – Fault: "Analog input wire break"
This fault is triggered when the analog input type (p4056) is set to 3 (4 ... 20 mA with open-
circuit monitoring) and the input current of 2 mA has been undershot.
The fault value can be used to determine the analog input in question.
Table 6- 6
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:
Converter cabinet units
Operating Instructions, 03/2012, A5E03263466A
Fault screen
"Motorized potentiometer"
"3: Motorized potentiometer"
6.5 Setpoint sources
Component number
3: Module -A60 (option G60)
4: Module -A61 (option G61)
0: Analog input 0: -X521:1/2
1: Analog input 1: -X521:3/4
Operation
285