ABB ACS880-17, Hardware Manual

Page: 86 / 244

86 Guidelines for planning the electrical installation
Implementing the functions provided by the FSO-xx
safety functions module (Q972 or +Q973)
The drive can be equipped with an FSO-xx safety functions module (Q972 or
+Q973) which enables the implementation of functions such as Safe brake control (SBC),
Safe stop 1 (SS1), Safe stop emergency (SSE), Safely limited speed (SLS) and Safe
maximum speed (SMS).
The settings of the FSO-xx are at default when delivered from the factory. The connectors
of the module are pre-wired to terminal block X68. The wiring of the external safety circuit
and configuration of the FSO-xx module are the responsibility of the machine builder.
The FSO-xx reserves the standard Safe torque off (STO) connection of the inverter control
unit. STO can still be utilized by other safety circuits through the FSO-xx.
For wiring instructions, safety data and more information on the functions provided by the
FSO-xx, refer to its manual.

Declaration of Conformity
See page 185 .
Implementing the Power-loss ride-through function
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.
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.
The main contactor of the drive opens in a power-loss situation. When the power returns,
the contactor closes. However, if the power-loss situation lasts so long that the drive trips
on undervoltage, it must be reset and started again to continue operation. If the power-loss
situation lasts so long that the buffer module (see page
40 ) runs out, the main contactor
remains open and the drive operates only after reset and a new start.
With external uninterruptible control voltage (G307), the main contactor remains
closed in power-loss situations. If the power-loss situation lasts so long that the drive trips
on undervoltage, it must be reset and started again to continue operation.
Supplying power for the auxiliary circuits
The drive is equipped with an auxiliary control voltage transformer which supplies control
voltage, for example, for the control devices and cabinet fan(s).
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)
•
+G307: Connection for an external uninterruptible power supply (230 or 115 V AC;
external fuse: 16 A) to the control unit and control devices when the drive is not
running
•
+G313: Power supply connection (230 V AC; external fuse 16 A) for a motor space
heater output.