Siemens SINAMICS G120 - Two-Wire Control, Method 3

Setting functions
8.2 Inverter control
Inverter with CU230P-2 Control Units
232 Operating Instructions, 11/2013, FW V4.6.6, A5E02430659B AG
8.2.4
Two-wire control, method 3
You switch the motor on and off using a control command (ON/OFF1) and at the same time
selecting 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 Two-wire control, method 3
Table 8- 4 Function table
ON/OFF1 clockwise
rotation
ON/OFF1 counter-
clockwise rotation
Function
0
0
OFF1: The motor stops.
1
0
ON: Clockwise motor rotation.
0
1
ON: Counter-clockwise motor rotation.
1
1
OFF1: The motor stops.
Parameter
Description
p0015 = 18
Macro drive unit
Controlling the motor using the
digital inputs of the inverter:
DI 0
DI 1
ON/OFF1
clockwise rotation
ON/OFF1 counter-
clockwise rotation
Advanced setting
Interconnecting control commands with digital inputs of your choice (DI x).
p3330[0 … n] = 722.x
BI: 2-3-WIRE control command 1 (ON/OFF1 clockwise rotation)
p3331[0 … n] = 722.x
BI: 2-3-WIRE control command 2 (ON/OFF1 counter-clockwise rotation)
Example
p3331[0 … n] = 722.2 DI 2: ON/OFF1 counter-clockwise rotation
Also see section Digital inputs (Page 94).