e77ha816.11
6/T3
4/T2
2/T1
5/L3
3/L2
1/L1
M
13
14
K1F1
K1
Illustration 10: Soft Starter Installed with Main Contactor
e77ha817.10
6/T3
4/T2
2/T1
5/L3
3/L2
1/L1
M
13
14
Q1
Illustration 11: Soft Starter Installed with a Shunt Relay and Circuit Breaker
N O T I C E
Some electronic contactor coils are not suitable for direct switching with PCB mount relays. Consult the contactor manufacturer/
supplier to confirm suitability.
5.5.4 Bypass Contactor Output
The bypass contactor output (03, 04) closes when the soft start is complete (when the starting current drops below 120% of the
programmed motor full load current) and remains closed until the beginning of a stop (either soft stop or coast to stop).
N O T I C E
This output is only available on models MCD6-0590C~MCD6-1134C.
N O T I C E
If a non-bypassed soft starter is installed with an external bypass contactor, the soft starter current rating changes. Enable param-
eter 20-7 External Bypass to increase the maximum current rating and adjust the soft starter thermal model.
AQ262141844215en-000401 / 175R1174 | 35Danfoss A/S © 2020.12
Installation
VLT® Soft Starter MCD 600
Operating Guide
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