Siemens SINAMICS G120 Instructions d'exploitation Page 154

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Functions
7.2 Inverter control
Inverter with CU240B-2 and CU240E-2 Control Units
152 Operating Instructions, 01/2011, FW 4.4, A5E02299792B AB
7.2.3 Two-wire control, method 3
You switch the motor on and off using a control command (ON/OFF1) and at the same time
select 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.
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Figure 7-4 Two-wire control, method 3
Table 7- 6 Function table
ON/OFF1 clockwise
rotation
ON/OFF1 , counter-
clockwise rotation
Function
0 0 OFF1: The motor stops.
1 0 ON: Clockwise rotation of motor.
0 1 ON: Counter-clockwise rotation of motor.
1 1 OFF1: The motor stops.
Table 7- 7 Parameter
Parameter Description
Macro drive unit
DI 0 DI 1
p0015 = 18
Controlling the motor using the
digital inputs of the inverter:
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 90).
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