Siemens sinamics G120 Operating Instructions Manual page 212
Low voltage inverters chassis devices with cu250s-2 control units and encoder evaluation
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Advanced commissioning
6.3 Setpoints
Example: Select two fixed setpoints directly
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- 24
Parameter
p1001 = 300.000
p1002 = 2000.000
p0840 = 722.0
p1070 = 1024
p1020 = 722.0
p1021 = 722.1
p1016 = 1
Table 6- 25
Fixed setpoint selected by
DI 0 = 0
DI 0 = 1 and DI 1 = 0
DI 0 = 1 and DI 1 = 1
212
Settings for the example
Description
Fixed speed setpoint 1 [rpm]
Fixed speed setpoint 2 [rpm]
ON/OFF1: Switch on motor with digital input 0
Main setpoint: Interconnect the main setpoint with the fixed speed set-
point.
Speed fixed setpoint selection Bit 0: Interconnect fixed setpoint 1 with
digital input 0 (DI 0).
Fixed speed setpoint selection bit 1: Interconnects fixed setpoint 2 with
digital input 1 (DI 1).
Fixed speed setpoint mode: Select direct selection of the fixed setpoints.
Resulting fixed setpoints for the example above
Resulting setpoint
Motor stops
300 rpm
2300 rpm
Operating Instructions, 01/2016, FW V4.7 SP6, A5E31759476B AE
Converter with CU250S-2 Control Unit
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