Control Unit - Siemens SINAMICS G120 Manual

Attaching the Control Unit
Connect the Control Unit with the fastening clips on the bottom of the Power Module and then
press the upper edge of the Control Unit against the Power Module until the locking device
snaps into place. Before wiring the control terminals, the terminal cover has to be opened.
General procedure for wiring with spring-type terminals
• Press the screwdriver on the upper release lever.
• The terminal cover opens.
• Insert the end of the wire into the terminal opening.
• Withdraw the screwdriver from the terminal.
The wire is now firmly attached.
Wiring the control terminals in the CU240E-2
The potentiometer:
1
• Attach the positive pole of the potentiometer to terminal 1.
• Attach the negative pole to 2.
• Wire the output of the potentiometer arm to 3.
• Close the circuit by connecting 4 to terminal 2.
On/Off, Reverse, and Reset buttons:
2
• Wire their power supply to 9.
• Attach the associated digital inputs to terminals 5, 6, and 7.
• To close the circuit, connect 9 with 20 and 22.
Indicator lights:
3
• Attach the power supply for the LEDs to 9.
• To close the circuit, connect 9 with 20 and 22.
• Wire the "Faults" and "Warning" LEDs to digital outputs 19 and 21.
• Connect the negative pole to terminal 28.
Display for frequency output:
4
• Connect the positive pole to 12.
• Connect the negative pole to 13.
The wiring is now complete.
Inverter family SINAMICS G120:
12
Mounting and wiring