Installing
3.4 Installing Control Unit
Inverter with CU240B-2 and CU240E-2 Control Units
Operating Instructions, 01/2011, FW 4.4, A5E02299792B AB
45
3.4.4 Terminal strips on CU240E-2 Control Units
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The terminal strip wiring is not completely shown, only as example for each type of input and output.
If you require more than six digital inputs, use terminals 3 and 4 (AI 0) or terminals 10 and 11 (AI 1) as additional digital
inputs DI 11 or DI 12.
① Wiring when using the internal power supplies. DI = high, if the switch is closed.
② Wiring when using external power supplies. DI = high, if the switch is closed.
③ Wiring when using the internal power supplies. DI = low, if the switch is closed.
④ Wiring when using external power supplies. DI = low, if the switch is closed.
CAUTION
If your application requires UL certification, please observe the note regarding the digital
output in Section Technical data, CU240E-2 Control Unit (Page 264).
Define the meanings of the inputs and outputs during basic commissioning. Further
information can be found in section Select interface assignments (Page 46).
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