Functions
7.2 Inverter control
Frequency inverters with Control Units CU230P-2 HVAC, CU230P-2 DP, CU230P-2 CAN
186
Operating Instructions, 01/2011, FW 4.4, A5E02430659B AD
7.2.1
Two-wire control: method 1
You switch the motor on and off using a control command (ON/OFF1). while the other
control command reverses the motor direction of rotation.
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Figure 7-2
Two-wire control, method 1
Table 7- 2
Function table
ON/OFF1
Reversing
Function
0
0
OFF1: The motor stops.
0
1
OFF1: The motor stops.
1
0
ON: Clockwise rotation of motor.
1
1
ON: Counter-clockwise rotation of motor.
Table 7- 3
Parameter
Parameter
Description
Macro drive unit (factory setting for inverters without PROFIBUS interface)
DI 0
DI 1
p0015 = 12
Controlling the motor using the digital inputs
of the inverter:
ON/OFF1
Reversing
Advanced setting
Interconnecting control commands with digital inputs of your choice (DI x).
p0840[0 … n] = 722.x BI: ON/OFF1 (ON/OFF1)
p1113[0 … n] = 722.x BI: Setpoint inversion (reversing)
Example
p0840 = 722.3
DI 3: ON/OFF1.
Also see Section Digital inputs (Page 86).
Summary of Contents for SINAMICS G120 CU230P-2
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