ABB ACS880-07CLC, Hardware Manual

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Implementing the Safe torque off function
See chapter The Safe torque off function (page 189) .
Implementing the Power-loss ride-through
Implement the power-loss ride-through function as follows:
• Check that the power-loss ride-through function of the inverter unit is enabled with
parameter
30.31 Undervoltage control in the ACS880 primary control program.
• Make sure that the control of the main contactor/breaker either keeps the contactor
closed over the short power break, or closes it after the break automatically.
WARNING!
Make sure that the automatic re-connection of the input power does not cause
any danger. If you are in doubt, do not implement the Power-loss ride-through
function.
WARNING!
Make sure that the flying restart of the motor will not cause any danger. If you are
in doubt, do not implement the Power-loss ride-through function.
Implementing a bypass connection
If bypassing is required, employ mechanically or electrically interlocked contactors between
the motor and the drive and between the motor and the power line. Make sure with
interlocking that the contactors cannot be closed simultaneously. The installation must be
clearly marked as defined in IEC/EN 61800-5-1, subclause 6.5.3, for example, “THIS
MACHINE STARTS AUTOMATICALLY”.
Bypass connection is available as a factory-installed option for certain cabinet-built drive
types. Consult ABB for more information.
WARNING!
Never connect the drive output to the power line. The connection may damage
the drive.
Supplying power for the auxiliary circuits
The customer/installer must provide the auxiliary voltage from an external supply to the
drive. For details, see the circuit diagrams delivered with the drive.
The following options are to be supplied from external power sources:
• +G300/+G301: Cabinet heaters and/or lighting (230 or 115 V AC; external fuse: 16 A gG)
• +G313: Power supply connection (230 V AC; external fuse 16 A gG) for a motor space
heater output.
Using power factor compensation capacitors with the drive
Power factor compensation is not needed with AC drives. However, if a drive is to be
connected in a system with compensation capacitors installed, note the following restrictions.
78 Guidelines for planning the electrical installation