Use Of The Safety Function; Contents Of This Chapter; Activating And Deactivating The Sls Function; Activating And Deactivating The Sms Function - ABB ACS880 Series Manual

Use of the safety function 51

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Use of the safety function

Contents of this chapter

This chapter describes the use of the safety function with factory default settings.

Activating and deactivating the SLS function

To activate the SLS function, de-energize (0 V) the applicable digital inputs of the FSO
module.
When the SLS monitoring is on and the motor speed is below the SLS limit:
• the FSO module energizes a digital output and the indication connected to this output
(for example, a lamp) is on.
When the drive trips after an SLS trip limit hit:
• the FSO module generates a fault (see parameter FSOGEN.62)
• the drive generates an event according to parameter 31.22.
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.
To deactivate the SLS function, energize (24 V) the applicable digital inputs of the FSO
module.
For the terminal designations, refer to the circuit diagrams delivered with the drive.

Activating and deactivating the SMS function

If the SMS function is activated at the start-up, it monitors the motor speed continuously.
The SMS function is activated and deactivated with an FSO module parameter (200.71).
To change this parameter value, a password is needed. See chapter Parameter settings.