Fine-Tuning The Configuration; How To Fine-Tune Limit Hit Situations - ABB FSO-21 User Manual

314 Configuration

Fine-tuning the configuration

To minimize the effect of small transient variations in the speed measurement data,
you can fine-tune the operation of the safety functions with "mute times" (parameter
FSOGEN.31 Transient mute
FSOGEN.32 Zero speed delay time


How to fine-tune limit hit situations

Example: SMS trip limit hit.
• parameter FSOGEN.31 Transient mute time
used with and without an encoder.
Speed
This applies also to:
• trip limit hits in the SLS1...4 and Variable SLS functions
• ramp monitoring limit hits in the SS1, SSE and SLS functions
• Variable SLS indication when the motor speed is decelerated to a new SLS limit.
time), and when you use an encoder, also parameters
and FSOGEN.33 Monitoring start
FSOGEN.31
Limit hit
Mute time elapsed, SSE activated
= 20 ms. The same parameter is
= 20 ms
SMS.14
SMS.13
delay).
= 1800 rpm
Time
= -1200 rpm