Chapter 4 – Electrical Installation
Installation and Start-up Guide for NBRA-6xx
4-11
ACS 600 Connection
Ensure that the UDC+ and UDC– busses of the chopper are properly
connected to the corresponding terminals of the ACS 600 (see
Chapter
3 – Voltage Selection and Mechanical Installation)
.
Resistor Cable
Connection
Connections at the braking resistor:
(For terminal tightening torques, consult resistor documentation.)
•
Twist the screen wires together and connect them to the earthing
terminal, along with conductor no. 3 (if present).
•
Crimp cable lugs of appropriate size onto conductors 1 and 2.
•
Connect conductor no. 1 to the R+ terminal.
•
Connect conductor no. 2 to the R– terminal.
Connections at the braking chopper:
Figure 4-7 Resistor cable stripping diagram (braking chopper end).
All lengths are approximate and may vary according to the
cable lugs used.
•
Cut and strip the cable as shown in Figure 4-7 above.
•
Lead the cable through the cable entry into the converter unit.
•
Slip the copper sleeve (inserted into the earthing clamp at the
factory) onto the outermost insulation of the cable so that insulation
and sleeve edges are aligned (see Figure 4-6).
•
Bend the screen wires evenly backwards onto the copper sleeve.
•
Unfasten the screen earthing clamp and slip it onto the screen wires
at the copper sleeve. Replace the clamp and tighten the fastening
screw to 3 Nm.
•
Twist the screen wires together and connect to the earthing clamp
on the chopper as shown in Figure 4-6. Tighten the screws to 3 Nm.
•
Connect conductor no. 3 (if present) to the earthing clamp on the
chopper (below the screen earthing clamp) as shown in Figure 4-6.
Tighten the screws to 3 Nm.
70 mm
190 mm
G
land P
late
Screen
1
3
2
Summary of Contents for ACS 600
Page 1: ...ACS 600 Installation and Start up Guide NBRA 6xx Braking Choppers ...
Page 2: ......
Page 4: ......
Page 10: ...Chapter 1 Introduction to This Guide 1 2 Installation and Start up Guide for NBRA 6xx ...
Page 18: ...Chapter 2 Overview 2 8 Installation and Start up Guide for NBRA 6xx ...
Page 46: ...Chapter 5 Fault Tracing 5 2 Installation and Start up Guide for NBRA 6xx ...
Page 53: ......