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Chapter 4 – Electrical Installation
Power Connections
NBRA-655/656/666
1
PE
4-10
WARNING! Before installation, switch off the mains supply to the
ACS 600. Wait five minutes to ensure that the intermediate circuit is
discharged. Switch off all dangerous voltages connected to the inputs
or the outputs of the ACS 600.
U1
ACS 600
2
3
Screen Earthing
Copper Sleeve
Figure 4-6 Top: NBRA-655/656/666 power connections.
Bottom: Resistor cable earthing.
V1
W1
U2
V2
W2
R+
Braking Resistor
Clamp
Installation and Start-up Guide for NBRA-6xx
R+
R–
NBRA-6xx
PE
R–
R
2
3
1
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