Siemens SINAMICS G120 - Three-Wire Control, Method 1

6.4.4 Three-wire control, method 1
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Figure 6-9 Three-wire control, method 1
The "Enable" command is a precondition for switching on the motor. Commands "ON clockwise
rotation" and "ON counter-clockwise rotation" switch on the motor - and simultaneously select
a direction of rotation. Removing the enable switches the motor off (OFF1).
Table 6-18 Function table
Enable / OFF1 ON clockwise rota‐
tion
ON counter-clock‐
wise rotation
Function
0 0 or 1 0 or 1 OFF1: The motor stops.
1 0→1 0 ON: Clockwise motor rotation.
1 0 0→1 ON: Counter-clockwise motor rota‐
tion.
1 1 1 OFF1: The motor stops.
Table 6-19 Select three-wire control, method 1
Parameter Description
p0015 = 19 Macro drive unit
You must carry out quick commissioning in order to set parameter p0015.
Assigning digital inputs DI to the commands:
DI 0: Enable / OFF1
DI 1: ON clockwise rotation
DI 2: ON counter-clockwise rotation
Table 6-20 Changing the assignment of the digital inputs
Parameter Description
p3330[0 … n] = 722.x BI: 2/3 wire control command 1 (enable/OFF1)
p3331[0 … n] = 722.x BI: 2/3 wire control command 2 (ON clockwise rotation)
p3332[0 … n] = 722.x BI: 2/3 wire control command 3 (ON counter-clockwise rotation)
Example: p3332 = 722.0 ⇒ DI 0: ON counter-clockwise rotation
Advanced commissioning
6.4 Controlling clockwise and counter-clockwise rotation via digital inputs
Converter with the CU230P-2 Control Units
Operating Instructions, 09/2017, FW V4.7 SP9, A5E34257946B AE 215