Siemens SINAMICS G120 - Three-Wire Control, Method 1

Setting functions
8.2 Inverter control
Inverter with CU230P-2 Control Units
Operating Instructions, 11/2013, FW V4.6.6, A5E02430659B AG
233
8.2.5
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).
Figure 8-6 Three-wire control, method 1
Table 8- 5 Function table
Enable / OFF1
ON clockwise
rotation
ON clockwise
rotation
Function
0
0 or 1
0 or 1
OFF1: The motor stops.
1
0→1
0
ON: Clockwise motor rotation.
1 0 0→1 ON: Counter-clockwise motor
rotation.
1 1 1 OFF1: The motor stops.
Parameter
Description
p0015 = 19
Macro drive unit
Controlling the motor using
the digital inputs of the
inverter:
DI 0 DI 1 DI 2
Enable /
OFF1
ON clockwise
rotation
ON 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 (enable/ OFF1)
p3331[0 … n] = 722.x
BI: 2-3-WIRE control command 2 (ON clockwise rotation)
p3332[0 … n] = 722.x
BI: 2-3-WIRE control command 3 (ON counter-clockwise rotation)
Example
p3332 = 722.0 DI 0: ON counter-clockwise rotation.
Also see section Digital inputs (Page 94).