Using A Motorized Potentiometer As A Setpoint Source - Siemens SINAMICS G120 Operating Instructions Manual
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5.4.3
Using a motorized potentiometer as a setpoint source
Frequency setpoint via motorized potentiometer (MOP) (when P1000 = 1 -> P1031)
The 'motorized potentiometer' function simulates an electromechanical potentiometer for
entering setpoints. The value of the motorized potentiometer (MOP) can be set by means of
the "up" and "down" control commands.
Table 5- 19
Parameter
P0700 = 1
P1000 = 1
P1031 = 0
P1032 = 1
P1040 = 5
P2000 = 50
Table 5- 20
Parameters
P0700 = 2
P0701 = 1
P0702 = 13
P0703 = 14
P1000 = 1
P1031 = 0
P1032 = 1
P1040 = 5
P2000 = 50
CU240S and CU240E Control Units, FW 3.2
Operating Instructions, 03/2009, A5E02440075B AA
Example: Implementing the motorized potentiometer using the Operator Panel keys
Description
1: Operator panels; ON and OFF buttons as well as "up" and "down" keys
1: MOP setpoint
Setpoint memory of the MOP
The last motorized potentiometer setpoint that was active prior to the OFF command
or shutdown can be saved.
0: MOP setpoint is not saved (factory setting)
1: MOP setpoint is saved in P1040
Disable opposite direction of the MOP
0: Reverse direction of rotation is permitted
1: Reverse direction of rotation is locked (factory setting)
Setpoint of the MOP
Determines the setpoint [Hz] of the motorized potentiometer (MOP). Factory setting 5
Hz
Reference frequency (Hz);
An output value of the MOP of 100 % corresponds to the frequency setpoint from
P2000. P2000 should be changed, if a maximum frequency greater than 50 Hz is
required.
Example: Implementing a motorized potentiometer using digital inputs
Description
2: Digital inputs P0701...P0709 (DI x ON/OFF1; DI y "up" and DI z "down")
1: ON/OFF1
13: MOP "up"
14: MOP "down"
1: MOP setpoint
Setpoint memory of the MOP
The last motorized potentiometer setpoint that was active prior to the OFF command
or shutdown can be saved.
0: MOP setpoint is not saved (factory setting)
1: MOP setpoint is saved in P1040
Disable opposite direction of the MOP
0: Reverse direction of rotation is permitted
1: Reverse direction of rotation is locked (factory setting)
Setpoint of the MOP
Determines the setpoint [Hz] of the motorized potentiometer (MOP); factory setting, 5
Hz
Reference frequency (Hz);
An output value of the MOP of 100 % corresponds to the frequency setpoint from
P2000. P2000 should be changed, if a maximum frequency greater than 50 Hz is
required.
Functions
5.4 Setpoint sources
99
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