Siemens SINAMICS G120 Operating Instructions Manual page 258

Advanced commissioning
6.15 Setpoints
Example: Directly selecting two fixed speed setpoints
The motor should operate at different speeds as follows:
● The signal on digital input 0 switches the motor on and accelerates it to 300 rpm.
● The signal at digital input 1 accelerates the motor to 2000 rpm.
● The signals at the two digital inputs accelerate the motor to 2300 rpm.
Table 6-38
Parameter
p1001 = 300.000
p1002 = 2000.000
p0840 = 722.0
p1070 = 1024
p1020 = 722.0
p1021 = 722.1
p1016 = 1
Table 6-39
Fixed speed setpoint selected via
DI 0 = 0
DI 0 = 1 and DI 1 = 0
DI 0 = 1 and DI 1 = 1
258
Settings for the 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 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 example above
Resulting setpoint
Motor stops
300 rpm
2300 rpm
Converter with the CU240B-2 and CU240E-2 Control Units
Operating Instructions, 01/2017, FW V4.7 SP6, A5E34259001B AD