Three-Wire Control, Method 1 - Siemens SINAMICS G120 Operating Instructions Manual

6.4.4

Three-wire control, method 1

Figure 6-11
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 6-17
Enable / OFF1
Table 6-18
Parameter
p0015 = 19
Table 6-19
Parameter
p3330[0 ... n] = 722.x
p3331[0 ... n] = 722.x
p3332[0 ... n] = 722.x
Converter with the CU250S-2 Control Units
Operating Instructions, 04/2018, FW V4.7 SP10, A5E31759476B AG
6.4 Controlling clockwise and counter-clockwise rotation via digital inputs
Three-wire control, method 1
Function table
ON clockwise rota‐
tion
0 0 or 1
1 0→1
1 0
1 1
Select three-wire control, method 1
Description
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
Changing the assignment of the digital inputs
Description
BI: 2/3 wire control command 1 (enable/OFF1)
BI: 2/3 wire control command 2 (ON clockwise rotation)
BI: 2/3 wire control command 3 (ON counter-clockwise rotation)
Example: p3332 = 722.0 ⇒ DI 0: ON counter-clockwise rotation
ON counter-clock‐ Function
wise rotation
0 or 1 OFF1: The motor stops.
0 ON: Clockwise motor rotation.
0→1 ON: Counter-clockwise motor rota‐
tion.
1 OFF1: The motor stops.
Advanced commissioning
181