Table of Contents
Advertisement
Relay Output
Example 1:
1
0
K
1
S1
2
S1
1
3
1
0
K
2
4
K
X
X
NBRC
1
X
Control
0
Board
3
4
K1
Installation and Start-up Guide for NBRA-6xx
The relay output indicates chopper faults. The changeover switch
opens when a failure is detected or the chopper is unpowered.
WARNING! In a chopper failure, always switch off the power supply to
the ACS 600. This is the only way to guarantee safe operation in case
of a chopper failure since the chopper is unable to disconnect the
resistor from the intermediate circuit.
It is highly recommended that the ACS 600 be equipped with a main
contactor and a manual control switch (or switches). See Figure 4-2
below for connection examples.
L1
L2
1
3
13
2
4
14
1
3
U1 V1 W1
X3
2
Figure 4-2 Examples of using the chopper relay output.
Example 2:
L3
L1
L2
Fuses
5
1
3
6
2
4
ACS 600
U1 V1 W1
Chapter 4 – Electrical Installation
L3
1
OFF
2
Fuses
13
5
6
14
ACS 600
1
3
X3
2
K1
3
ON
4
NBRC
Control
Board
4-3
Hide quick links:
Advertisement
Table of Contents
