Siemens SINAMICS G120 Instructions d'exploitation Page 153

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Functions
7.2 Inverter control
Inverter with CU240B-2 and CU240E-2 Control Units
Operating Instructions, 01/2011, FW 4.4, A5E02299792B AB
151
7.2.2 Two-wire control, method 2
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.
The inverter only accepts a new control command when the motor is at a standstill.
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Figure 7-3 Two-wire control, method 2
Table 7- 4 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 ON: The motor direction of rotation is based on the signal that
takes on the status "1" first.
Table 7- 5 Parameter
Parameter Description
Macro drive unit
DI 0 DI 1
p0015 = 17
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 = 722.0 DI 0: ON/OFF1 Counter-clockwise rotation
Also see Section Digital inputs (Page 90).
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