Nidec Digistart D3 User Manual

30 Digistart D3: User Guide
Issue: G
Inside delta 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
M
3
13037.B
6/T3
2/T1
5/L3
3/L2
1/L1
COM1
RLO1
4/T2
E
K1
K1
U1(1) U2(4)
V1(2)
V2(5)
W1(3) W2(6)
T2B
T1B
T3B
K2
RLO2
COM2
K2
F1
K1
Main contactor (strongly
recommended)
K2
Bypass contactor (external)
F1
Semiconductor fuses
(optional)
COM1,
RLO1
Relay output A (= Main
Contactor, default)
COM2,
RLO2
Run relay output
D3-0360-N to D3-1600-N
08345.B
M
3
6/T3
2/T1
5/L3
3/L2
1/L1
COM1
RLO1
4/T2
E
K1
K1 F1
U1(1) U2(4)
V1(2)
V2(5)
W1(3) W2(6)
L2B
L1B
L3B
K2
RLO2
COM2
K2
K1
Main contactor (strongly
recommended)
K2
Bypass contactor (external)
F1
Semiconductor fuses
(optional)
COM1,
RLO1
Relay output A (= Main
Contactor, default)
COM2,
RLO2
Run relay output
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.

Nidec Digistart D3 Specifications

General

Brand	Nidec
Model	Digistart D3
Category	Controller
Language	English