For a cabinet-installed drives, an ATEX-certified motor thermal protection function is also
available (option +L513+Q971, or +L514+Q971). The drive is equipped with an ATEX-certified
Safe motor disconnection function and with an ATEX-compliant protection relay, either for
PTC, or Pt100 temperature sensors.
For more information, see:
Manual code
(English)
User's manual
3AUA0000132231
ATEX-certified Safe disconnection function, Ex II (2) GD for ACS880 drives (+Q971)
application guide
3AXD50000027782
FPTC-02 ATEX-certified thermistor protection module, Ex II (2) GD (option +L537+Q971)
for ACS880 drives user's manual
3AXD50000014979
ATEX-certified motor thermal protection functions for cabinet-built ACS880 drives (options
+L513+Q971 and +L514+Q971) user’s manual
Implementing the functions provided by the FSO-xx safety
functions module
You can order the drive with an FSO-12 or FSO-21 safety functions module (option +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 module have default values when delivered from the factory.
The wiring of the external safety circuit and configuration of the FSO-xx module are the
responsibility of the user.
The FSO-xx module reserves the standard Safe torque off (STO) connection of the drive
control unit. STO can still be utilized by other safety circuits through the FSO-xx.
See the appropriate manual for more information.
CodeName
3AXD50000015612
FSO-12 safety functions module user's manual
3AXD50000015614
FSO-21 safety functions module user's manual
Implementing the power loss ride-through function
If the incoming supply voltage is cut off, the drive will continue to operate by utilizing the
kinetic energy of the rotating motor. The drive will be fully operational as long as the motor
rotates and generates energy to the drive.
If the drive is equipped with a main contactor (option +F250), it restores the drive input
power after a short break. The power supply for the contactor control circuit is buffered. It
keeps the contactor closed in short power-loss situations. If the drive is equipped an external
uninterruptible auxiliary power supply (option +G307), it keeps the main contactor closed
in power-loss situations.
Note that if the power loss lasts so long that the drive trips on undervoltage, a fault reset
and a fresh start command is required to continue operation.
Implement the power-loss ride-through function as follows:
102 Guidelines for planning the electrical installation
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