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

Functions
9.2 Converter control
9.2.7

Three-wire control, method 2

With one control command, you enable the two other control commands. You switch the
motor off by canceling 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 9-7
Table 9- 11
Enable/OFF1
Table 9- 12
Parameter
p0015 = 20
Advanced setting
Interconnecting control commands with digital inputs of your choice (DI x).
p3330[0 ... n] = 722.x
p3331[0 ... n] = 722.x
p3332[0 ... n] = 722.x
Example
p3331 = 722.0
168
Three-wire control, method 2
Function table
ON
0 0 or 1
1 0→1
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 (enable/OFF1)
BI: 2-3-WIRE Control Command 2 (ON)
BI: 2-3-WIRE Control Command 3 (reversing)
DI 0: ON.
Also see Section Digital inputs (Page 74).
Reversing Function
0 or 1 OFF1: The motor stops.
0 ON: Clockwise rotation of motor.
1 ON: Counter-clockwise rotation of motor.
DI 0
Enable/OFF1
Operating Instructions, 03/2012, FW V4.5, A5E02999804B AB
DI 1 DI 2
ON Reversing
SINAMICS G120C frequency converter