When the drive trips after an SMS 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.
Activating and deactivating the SSM function
If the SSM function is activated at the start-up, it monitors the motor speed continuously.
The SSM function is activated and deactivated with FSO module parameters (for example,
SSMx.01 and SSMx.11 for the SSM1 function). To change these parameter values, a
password is needed. See chapter Parameter settings.
Note: This manual describes the SSM function when it is set to Always on at the start-up.
You can also configure the SSM function so that it is activated with an external request
signal (from the FSO I/O or a PLC). Obey the wiring instructions given for the SLS function.
For more information, see FSO module user’s manual.
When the motor speed is between the SSM speed limits, the FSO module energizes a digital
output and the indication signal connected to this output is on. For the terminal designations,
refer to the circuit diagrams delivered with the drive.
52 Use of the safety function
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