Nidec D2-018, User Manual

Page: 11 / 22

4.1.4 Outputs
Main Contactor Output
The Main Contactor output (terminals COM2, RLO2) closes as soon as the soft starter receives a start
command and remains closed while the soft starter is controlling the motor (until the motor starts a coast
to stop, or until the end of a soft stop). The Main Contactor output will also open if the soft starter trips.
The Main Contactor output can be used to directly control a main contactor coil.
Programmable Output
The programmable output relay (terminals COM1, RLO1) can be used to signal either trip or run status.
This relay is normally open.
Trip:
The relay closes when the Digistart D2 trips. The relay can be used to operate the shunt-trip mechanism
of an upstream circuit breaker (in order to isolate the motor branch circuit), or to signal the trip to an
automation system or externally. The relay will open when the trip is reset.
Run:
The relay operates when the soft start is complete, the bypass relays are closed and full voltage is being
applied to the motor. The relay can be used to operate a contactor for power factor correction capacitors,
or to signal soft starter run status to an automation system.
4.1.5 Semiconductor Fuses
Semiconductor fuses can be used with Digistart D2 soft starters to reduce the potential for damage to
SCRs from transient overload currents and for Type 2 coordination. Digistart D2 soft starters have been
tested to achieve Type 2 coordination with semiconductor fuses. Suitable Bussmann and Ferraz/Mersen
semiconductor fuses are detailed below.
Model SCR I 2 t (A 2 s)
Ferraz/Mersen Fuse
European/IEC Style
(North American Style)
Bussmann Fuse
Square Body
(170M)
Bussmann Fuse
British Style
(BS88)
D2-018 1150
6.6URD30xxxA0063
(A070URD30xxx0063)
170M-1314 63 FE
D2-034 8000
6.6URD30xxxA0125
(A070URD30xxx0125)
170M-1317 160 FEE
D2-042 10500
6.6URD30xxxA0160
(A070URD30xxx0160)
170M-1318 160 FEE
D2-048 15000
6.6URD30xxxA0160
(A070URD30xxx0160)
170M-1318 180 FM
D2-060 18000
6.6URD30xxxA0160
(A070URD30xxx0160)
170M-1319 180 FM
D2-075 51200
6.6URD30xxxA0250
(A070URD30xxx0250)
170M-1321 250 FM
D2-085 80000
6.6URD30xxxA0315
(A070URD30xxx0315)
170M-1321 250 FM
D2-100 97000
6.6URD30xxxA0315
(A070URD30xxx0315)
170M-1321 250 FM
D2-140 168000
6.6URD31xxxA0450
(A070URD31xxx0450)
170M-1322 500 FMM
D2-170 245000
6.6URD31xxxA0450
(A070URD31xxx0450)
170M-3022 500 FMM
D2-200 320000
6.6URD31xxxA0450
(A070URD31xxx0450)
170M-3022 500 FMM
xxx = Blade Type. Contact Ferraz/Mersen for options.
Digistart D2: User Guide
11
Issue: F