Two-Wire Control, Method 3 - Siemens SINAMICS G120 Operating Instructions Manual

Setting functions
8.2 Inverter control
8.2.5

Two-wire control, method 3

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.
Unlike method 2, the inverter will accept the control commands at any time, regardless of the
motor speed.
Figure 8-5
Table 8- 4
Parameter
p0015 = 18
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[0 ... n] = 722.2
222
Two-wire control, method 3
Function table
Clockwise rotation
0
1
0
1
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 2: ON/OFF1 counter-clockwise rotation
Also see section Digital inputs (Page 96).
ON/OFF1 counter- Function
clockwise rotation
0 OFF1: The motor stops.
0 ON: Clockwise motor rotation.
1 ON: Counter-clockwise motor rotation.
1 OFF1: The motor stops.
Operating Instructions, 06/2013, FW V4.6, A5E31759476B AB
DI 0
ON/OFF1
clockwise
rotation
Converter with the CU250S-2 Control Unit (vector)
DI 1
ON/OFF1
counter-
clockwise
rotation