Siemens SINAMICS G120 - Setpoint Calculation; Overview of Setpoint Processing; Invert Setpoint

Setting functions
8.4 Setpoint calculation
Inverter with CU230P-2 Control Units
244 Operating Instructions, 11/2013, FW V4.6.6, A5E02430659B AG
8.4
Setpoint calculation
8.4.1
Overview of setpoint processing
The setpoint can be modified as follows using the setpoint processing:
● Invert setpoint to reverse the motor direction of rotation (reversing).
● Inhibit positive or negative direction of rotation, e.g. for conveyor belts, pumps or fans.
● Minimum speed to avoid standstill when the motor is switched on.
● Limit to a maximum speed to protect the motor and mechanical system.
● Ramp-function generator to accelerate and brake the motor with an optimum torque.
Figure 8-18 Setpoint processing in the inverter
8.4.2
Invert setpoint
Procedure
Proceed as follows to invert the setpoint:
Interconnect parameter p1113 with
a binary signal,
e.g. digital input 1.
You have inverted the setpoint.
Table 8- 15 Examples of settings to invert the setpoint
Parameter
Remark
p1113 = 722.1
Setpoint inversion
Digital input 1 = 0: Setpoint remains unchanged.
Digital input 1 = 1: Inverter inverts the setpoint.
p1113 = 2090.11
Invert setpoint via control word 1, bit 11.