Option description and instructions 15
Initial status: The drive is in operation and the motor is not running
.
Step
Operation
1.
The user activates the POUS function by switching off the POUS switch [Sxx].
This activates the POUS function in the FSO module.
2.
The FSO module de-energizes the STO inputs on the inverter units control boards. This activates
the inverter units STO function. The inverter units indicate the status. See section
on page
.
3.
The POUS indication lamp [Pxx] switches on.
4.
The user cannot start the motor(s) while the inverter units STO function is on.
5.
Normal operation resumes after the user:
• switches on the POUS switch [Sxx]
• resets the inverter units (if parameter
31.22 STO indication run/stop
has been set so that a fault
is generated, see page
).
