Chapter 4 – Electrical Installation
Installation and Start-up Guide for NBRA-6xx 4-13
Power Connections
NBRA-657/667
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.
Figure 4-8 Top: NBRA-657/667 power connections.
Bottom: Resistor cable earthing.
R
Braking Resistor
ACS 600
R+
123
R–
U1 V1 W1 U2 V2 W2
UDC+
UDC–
NBRA-6x7
PE
R+ R–
PE
12
3
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