Manual code (Eng-
lish)
User’s manualOption code
3AUA0000145922Prevention of unexpected start-up, with FSO-xx safety functions
module
+Q950
3AUA0000119894Prevention of unexpected start-up, with safety relay+Q957
■ Multidrive modules
Prevention of unexpected start-up function is not available as an option from ABB. The
cabinet builder can use the Safe torque off function of the inverter modules to implement
the Prevention of unexpected start-up function.
Implementing the Safely-limited speed function
■ Cabinet-installed multidrives
You can order the drive with Safely-limited speed function with the encoder interface (option
+Q965). The function enables the user to safely operate close to the machine by lowering
the speed automatically.
For multidrives, there is also a version without the encoder interface available (option +Q966).
See the appropriate option manual for more information.
CodeName
3AXD50000019728
Safely-limited speed with the encoder interface (option +Q965) for ACS880 multidrives
user's manual
3AUA0000145935
Safely-limited speed without the encoder interface (option +Q966) for ACS880 multidrives
user's manual
■ Multidrive modules
Safely-limited speed function is not available as an option from ABB. However, the cabinet
builder can implement it with an optional safety module available from ABB. See Implementing
the functions provided by the FSO-xx safety functions module (page 38).
Implementing the functions provided by the FSO-xx safety
functions module
■ Cabinet-installed multidrives
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.
38 Electrical planning guidelines