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

Setting functions
8.2 Inverter control
8.2.7

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
Table 8- 6
Enable / OFF1
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
224
Three-wire control, method 2
Function table
ON
0 0 or 1
1 0→1
1 0→1
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 96).
Reversing Function
0 or 1 OFF1: The motor stops.
0 ON: Clockwise motor rotation.
1 ON: Counter-clockwise motor rotation.
DI 0
Enable /
OFF1
Converter with the CU250S-2 Control Unit (vector)
Operating Instructions, 06/2013, FW V4.6, A5E31759476B AB
DI 1 DI 2
ON Reversing