Two-Wire Control, Method 2 - Siemens SINAMICS G120 Operating Instructions Manual

8.2.2

Two-wire control, method 2

You switch the motor on and off using a control command (ON/OFF1) and at the same time
select clockwise motor rotation. You also use the other control command to switch the motor
on and off, but in this case you select counter-clockwise rotation for the motor.
The inverter only accepts a new control command when the motor is at a standstill.
Figure 8-3
Table 8- 4
clockwise rotation
Table 8- 5
Parameter
p0015 = 17
Advanced setting
Interconnecting control commands with digital inputs of your choice (DI x).
p3330[0 ... n] = 722.x
p3331[0 ... n] = 722.x
Example
p3331 = 722.0
SINAMICS G120C Inverter
Operating Instructions, 01/2011, FW 4.4, A5E02999804A AB
Two-wire control, method 2
Function table
ON/OFF1 ON/OFF1 , counter-
clockwise rotation
0
1
0
1
Parameter
Description
Macro drive unit
Controlling the motor using the
digital inputs of the inverter:
BI: 2-3-WIRE Control Command 1 (ON/OFF1 clockwise rotation)
BI: 2-3-WIRE Control Command 2 (ON/OFF1 , counter-clockwise rotation)
DI 0: ON/OFF1 Counter-clockwise rotation
Also see Section Digital inputs (Page 80).
Function
0 OFF1: The motor stops.
0 ON: Clockwise rotation of motor.
1 ON: Counter-clockwise rotation of motor.
1 ON: The motor direction of rotation is based on the
signal that takes on the status "1" first.
8.2 Inverter control
DI 0 DI 1
ON/OFF1 ON/OFF1 , counter-
clockwise rotation clockwise rotation
Functions
165