ABB ACS880-17, Hardware Manual

Page: 49 / 244

Operation principle and hardware description 49

Cabinet heater with external supply (G300)
The option contains:
•
heating elements in the cubicles and supply/inverter modules
•
load switch for providing electrical isolation during service
•
miniature circuit breaker for overcurrent protection
•
terminal block for external power supply.
The heater prevents humidity condensation inside the cabinet when the drive is not
running. The power output of the semiconductor-type heating elements depends on the
environmental temperature. The customer must switch the heating off when it is not
needed by cutting the supply voltage off.
The customer must supply the heater from an external 110…240 V AC power source.
See also
•
Powering the heating and lighting equipment (oG300, +G301 and +G313)
•
circuit diagrams delivered with drive for the actual wiring.

Terminals for external interruptible control voltage (G307)
The option provides terminals for connecting external interruptible control voltage to the
control unit and control devices when the drive is not running.
See also
•
Supplying power for the auxiliary circuits on page 86
•
Connecting an auxiliary voltage supply (UPS, G307) on page 97
•
circuit diagrams delivered with drive for the actual wiring.

Output for motor space heater (G313)
The option contains:
•
load switch for providing electrical isolation during service
•
miniature circuit breaker for overcurrent protection
•
terminal block for external supply and heating element(s) connection
The heater is off when the drive is running. The customer controls the heating elements in
the motor windings on and off with the external supply. The power and voltage of the motor
heater depend on the motor.
See also
•
Supplying power for the auxiliary circuits on page 86
•
Powering the heating and lighting equipment (oG300, +G301 and +G313) on
page 100
•
circuit diagrams delivered with drive for the actual wiring.