Externally Bypassed; Current Ratings - Danfoss vlt soft starter mcd 500 Operating Manual

Electrical Installation

4.3.3.3 Externally Bypassed

Non-bypassed models have dedicated bypass terminals,
which allow the soft starter to continue providing
protection and monitoring functions even when bypassed
via an external bypass contactor. Connect the bypass
contactor to the bypass terminals and control the
contactor by a programmable output configured to Run
(see parameters 4-1 to 4-9).
NOTICE
The bypass terminals on MCD5-0245C are:
•
T1B
•
T2B
•
T3B
The bypass terminals on MCD5-0360C to MCD5-1600C
are:
•
L1B
•
L2B
•
L3B
If necessary, the fuses can be installed on the input side.
K2
K1 F1
1/L1
3/L2
5/L3
E
K1 Main contactor
K2 Bypass contactor (external)
F1 Semiconductor fuses (optional)
Illustration 4.12 Inside Delta Installation, Externally Bypassed,
MCD5-0245C
MG17K602
Operating Guide
2/T
U1(1) U2(4)
T1B
M
4/T
V1(2)
V2(5)
3
T2B
W1(3) W2(6)
6/T
T3B
13
14
K1
33
34
K2
Danfoss A/S © 05/2016 All rights reserved.
K2
K1
1/L1
L1B
3/L2
L2B
5/L3
L3B
E
K1 Main contactor
K2 Bypass contactor (external)
F1 Semiconductor fuses (optional)
Illustration 4.13 Inside Delta Installation, Externally Bypassed,
MCD5-0360C to MCD5-1600C

4.4 Current Ratings

Contact the local supplier for ratings under operating
conditions not covered by these ratings charts.
All ratings are calculated at an altitude of 1000 m (3281 ft)
and ambient temperature of 40 °C (104 °F).
F1
2/T
U1(1) U2(4)
M
4/T
V1(2) V2(5)
3
W1(3) W2(6)
6/T
13
14
K1
33
34
K2
19
4 4