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

6.2.7

Three-wire control, method 1

With one control command, you enable the two other control commands. You switch the
motor off by withdrawing the enable (OFF1).
You switch the motor's direction of rotation to clockwise rotation with the positive edge of the
second control command. If the motor is still switched off, switch it on (ON).
You switch the motor's direction of rotation to counter-clockwise rotation with the positive
edge of the third control command. If the motor is still switched off, switch it on (ON).
Image 6-9
Table 6- 10
Enable / OFF1
Parameter
p0015 = 19
Advanced setting
Interconnecting control commands with digital inputs of your choice (DI x).
p3330[0 ... n] = 722.x
p3331[0 ... n] = 722.x
p3332[0 ... n] = 722.x
Converter with the CU240B-2 and CU240E-2 Control Units
Operating Instructions, 01/2016, FW V4.7 SP6, A5E34259001B AC
Three-wire control, method 1
Function table
ON clockwise
rotation
0 0 or 1
1 0→1
1 0
1 1
Description
Macro drive unit
Controlling the motor
using the digital inputs of
the inverter:
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[0] = 722.0 ⇒ if CDS 0 (index[0]) is selected, the inverter
receives its ON counter-clockwise command via DI 0.
ON counter- Function
clockwise 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.
DI 0 DI 1
Enable / ON clockwise
OFF1 rotation
Advanced commissioning
6.2 Inverter control
DI 2
ON counter-
clockwise rotation
189