Use of the safety function
Contents of this chapter
This chapter describes the use of the safety function with factory default settings.
Activating the safety function
1.
Switch off the POUS switch.
When the POUS is activated, the following indications are shown:
•
AA97 FSO POUS request
•
the POUS indication lamp is on.
A5A0 Safe torque off is indicated when drive STO is activated.
The indications that the FSO module generates are configurable. For more information, see
chapter Parameter settings in this manual and chapter Fault tracing in the FSO module
user’s manual.
Resetting the safety function
No manual reset is necessary after you have deactivated the POUS function. The reset
method for the POUS function is set to
automatic
by ABB. However, you must reset the
inverter units if they have tripped on a fault at the activation of the POUS function. The
reaction of the inverter units depends on the parameter settings. See section Parameter
settings.
5
Use of the safety function 27
