ASAC-1
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3.3.1
Motor Thermistor
Motor thermistors can be connected directly to the ASAC-1 terminals B4, B5. If motor thermistors are not used, there must be a link
between B4, B5 (the ASAC-1 is supplied with a link fitted).
B4
B5
B4
B5
B4
B5
03247.
A
OK
OK
3.4
Outputs
3.4.1
Main Contactor Output
The Main Contactor output (terminals 13, 14) 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.
3.4.2
Programmable Output
The programmable output relay (terminals 23, 24) can be used to signal either trip or run status. This relay is normally open.
Trip:
The relay closes when the ASAC-1 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.
3.5
Electrical Schematics
Soft starter installed with fuses and a main contactor.
6/T3
4/T2
2/T1
5/L3
3/L2
1/L1
13
14
M
K1
23
24
K1
03249.
F
M
Motor (three phase)
K1
Main contactor
13, 14
Main contactor output
23, 24
Programmable output (set to Trip)
Содержание ASAC-1 Series
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