In-Line Installation, Internally Bypassed; In-Line Installation, Externally Bypassed - Danfoss VLT MCD 600 Operating Manual

VLT® Soft Starter MCD 600
Operating Guide

5.9.1 In-line Installation, Internally Bypassed

F1 K1
1/L1
3/L2
5/L3
13
K1
14
Illustration 14: Wiring of an In-line Installation
K1 Main contactor (strongly recommended)
F1 Fuses or circuit breaker

5.9.2 In-line Installation, Externally Bypassed

Models MCD6-0590C~MCD6-1134C have dedicated bypass terminals, which allow the protection and monitoring functions of the
soft starter to work even when the soft starter is externally bypassed.
The bypass busbars are at the top of the unit and are labeled T1B, T2B, T3B.
The bypass contactor must be connected to the bypass terminals and controlled by the soft starter's bypass contactor output (ter-
minals 03, 04).
K2
F1 K1
40 | Danfoss A/S © 2020.12
2/T1
M
4/T2
3
6/T3
1/L1 2/T1
T1B
3/L2 4/T2
T2B
6/T3
5/L3
T3B
E
13
14
K1
03
04
K2
13, 14 Main contactor output
M
3
AQ262141844215en-000401 / 175R1174
Installation