Siemens SINAMICS G120 - Three-Wire Control, Method 2

Setting functions
8.2 Inverter control
Inverter with CU230P-2 Control Units
234 Operating Instructions, 11/2013, FW V4.6.6, A5E02430659B AG
8.2.6
Three-wire control, method 2
With one control command, you enable the two other control commands. You switch the
motor off by withdrawing the enable (OFF1).
You switch on the motor with the positive edge of the second control command (ON).
The third control command defines the motor's direction of rotation (reversing).
Figure 8-7 Three-wire control, method 2
Table 8- 6 Function table
Enable / OFF1
ON
Reversing
Function
0
0 or 1
0 or 1
OFF1: The motor stops.
1
0→1
0
ON: Clockwise motor rotation.
1
0→1
1
ON: Counter-clockwise motor rotation.
Parameter
Description
p0015 = 20
Macro drive unit
Controlling the motor using
the digital inputs of the
inverter:
DI 0
DI 1
DI 2
Enable / OFF1 ON Reversing
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)
p3332[0 … n] = 722.x
BI: 2-3-WIRE Control Command 3 (reversing)
Example
p3331 = 722.0 DI 0: ON
Also see section Digital inputs (Page 94).