Implementing The Safe Torque Off Function; Implementing The Prevention Of Unexpected Start-Up Function; Acs880 Cabinets; Modules - ABB ACS880 Electrical Planning Instructions

30 Electrical planning guidelines

Implementing the Safe torque off function

See the hardware manual for implementing the Safe torque off function.
Implementing the Prevention of unexpected start-up
function
￭

ACS880 cabinets

You can order the drive with a Prevention of unexpected start-up (POUS) function. The
POUS function enables short-time maintenance work (like cleaning) on the non-electrical
parts of the machinery without switching off and disconnecting the drive.
See the appropriate manual for more information.
Option
code
+Q950 Prevention of unexpected start-up, with FSO-xx safety functions module
+Q957 Prevention of unexpected start-up, with safety relay
￭

Modules

POUS is not available as an option from ABB.
Implementing the functions provided by the FSO-xx safety
functions module
￭

ACS880 single drive cabinets

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 are at default 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 inverter
control unit. STO can still be utilized by other safety circuits through the FSO-xx.
See the appropriate manual for more information.
Name
FSO-12 safety functions module user's manual
FSO-21 safety functions module user's manual
￭ Modules
You can order a safety function module from ABB. The cabinet builder can use the module
for implementing various safety functions.
User's manual Manual code (Eng-
lish)
3AUA0000145922
3AUA0000119910
Code
3AXD50000015612
3AXD50000015614