Siemens SINAMICS G120 Operating Instructions Manual page 270

Advanced commissioning
6.18 Setpoints
Figure 6-39
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 6-40
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 6-41
Fixed speed setpoint selected via
DI 0 = 0
DI 0 = 1 and DI 1 = 0
DI 0 = 1 and DI 1 = 1
268
Binary selection of the fixed speed setpoint
Settings for the application example
Description
Fixed speed setpoint 1 [rpm]
Fixed speed setpoint 2 [rpm]
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 digital input 0 (DI 0).
Fixed speed setpoint selection, bit 1: Interconnects fixed speed setpoint 2
with digital input 1 (DI 1).
Fixed speed setpoint mode: Directly selects fixed speed setpoints.
Resulting fixed speed setpoints for the application example
Resulting setpoint
Motor stops
300 rpm
2300 rpm
Converter with the CU250S-2 Control Units
Operating Instructions, 04/2018, FW V4.7 SP10, A5E31759476B AG