Nidec Digistart D3 - Page 28

28 Digistart D3: User Guide
Issue: G
In-line installation, externally bypassed
Non-bypassed models have dedicated bypass terminals, which allow the Digistart D3 to continue providing protection
and monitoring functions even when bypassed via an external bypass contactor. The bypass contactor must be
connected to the bypass terminals and controlled by the soft starter's run output (terminals COM2, RLO2).
D3-0255-N
13034.B
K1
Main contactor
K2
Bypass contactor (external)
F1
Semiconductor fuses (optional)
D3-0360-N to D3-1600-N
K1
Main contactor
K2
Bypass contactor (external)
F1
Semiconductor fuses (optional)
NOTE
The bypass terminals on D3-0255-N are T1B, T2B, T3B. The bypass terminals on D3-0360-N ~
D3-1600-N are L1B, L2B, L3B.
The fuses can be installed on the input side if required.
NOTE
Main contactor is the default setting for Pr 4A Relay A Action
(COM1, RLO1). Output relay COM2, RLO2 is
dedicated to Run output operation and is ideal for managing an external bypass contactor.