Siemens SINAMICS G120D - Specifying the Setpoint Via the Fieldbus; Motorized Potentiometer as Setpoint Source

Setting functions
8.3 Setpoints
Converter with control units CU250D-2
120 Operating Instructions, 04/2014, FW V4.7, A5E34261542B AA
8.3.2
Specifying the setpoint via the fieldbus
Interconnecting the fieldbus with the main setpoint
Figure 8-7 Fieldbus as setpoint source
Most standard telegrams receive the speed setpoint as a second process data PZD2.
Table 8- 1 Setting the fieldbus as setpoint source
Parameter
Remark
p1070 = 2050[1]
Main setpoint
Interconnect the main setpoint with process data PZD2 from the fieldbus.
p1075 = 2050[1]
Additional setpoint
Interconnect the additional setpoint with process data PZD2 from the fieldbus.
8.3.3
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 8-8 Motorized potentiometer as setpoint source
Table 8- 2 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 switching on the motor.