Siemens SINAMICS G120C Operating Instructions Manual page 280

Advanced commissioning
8.17 Setpoints
Example
After it has been switched on, a conveyor belt only runs with two different velocities. The motor
should now operate with the following corresponding speeds:
• The signal at digital input 0 switches the motor on and accelerates it up to 300 rpm.
• The signal at digital input 1 accelerates the motor up to 2000 rpm.
• With signals at both digital inputs, the motor accelerates up to 2300 rpm.
Table 8-47
Parameter
p1001[0] =
300.000
p1002[0] =
2000.000
p0840[0] = 722.0
p1070[0] = 1024
p1020[0] = 722.0
p1021[0] = 722.1
p1016 = 1
Table 8-48
Fixed speed setpoint selected via
DI 0 = 0
DI 0 = 1 and DI 1 = 0
DI 0 = 1 and DI 1 = 1
Parameter
Parameter
p1001[D]
p1002[D]
p1003[D]
p1004[D]
p1005[D]
p1006[D]
p1007[D]
p1008[D]
p1009[D]
p1010[D]
p1011[D]
p1012[D]
278
Settings for the application example
Description
Fixed speed setpoint 1
Fixed speed setpoint 2
ON/OFF1: Switches on the motor with digital input 0
Main setpoint: Interconnects the main setpoint with a fixed speed setpoint.
Fixed speed setpoint selection bit 0: Interconnects fixed speed setpoint 1 with dig‐
ital input 0 (DI 0).
Fixed speed setpoint selection bit 1: Interconnects fixed speed setpoint 2 with dig‐
ital input 1 (DI 1).
Fixed speed setpoint mode: Directly selects fixed speed setpoints.
Resulting fixed speed setpoints for the application example
Description
CO: Fixed speed setpoint 1
CO: Fixed speed setpoint 2
CO: Fixed speed setpoint 3
CO: Fixed speed setpoint 4
CO: Fixed speed setpoint 5
CO: Fixed speed setpoint 6
CO: Fixed speed setpoint 7
CO: Fixed speed setpoint 8
CO: Fixed speed setpoint 9
CO: Fixed speed setpoint 10
CO: Fixed speed setpoint 11
CO: Fixed speed setpoint 12
Resulting setpoint
Motor stops
300 rpm
2300 rpm
Operating Instructions, 02/2023, FW V4.7 SP14, A5E34263257B AK
Factory setting
0 rpm
0 rpm
0 rpm
0 rpm
0 rpm
0 rpm
0 rpm
0 rpm
0 rpm
0 rpm
0 rpm
0 rpm
SINAMICS G120C Converters