Electrical connection
6.7 External control voltage
Installation and Operating Instructions SINAMICS G180
106
Operating Instructions, 02/2019, 4BS0751-007
Preparing compact devices with frame size K4 with 400 V or 500 V
This instruction applies to compact units with the frame size K4 with L × W 775 × 350 mm
and 400 V or 500 V rated voltage.
Procedure
1.
Turn the four fixing screws of the gray cover through 90° and lift up the cover.
2.
Unscrew the blue cover at the screw above -X25 and lift up the cover.
3.
Remove the cover above the motor connection terminals.
4.
Remove the "fan power supply" board with the five fine-wire fuses. Undo the four screws
and unplug the cable for this.
5.
The "switched-mode power supply" board is located below with a white connector and the
sockets -X2 for "internal" and -X5 for "external".
6.
Insert the connector into "external".
7.
Reassemble in the inverse order.
Figure 6-2
Compact device frame size K4
Note
Occurrence of malfunctions
Malfunctions can occur if you change over the connection of the sockets -X100 / 200 for
"external" / "internal" on the upper "fan power supply" board. Leave this connection in its
original configuration.
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