Endress+Hauser Soliphant M FTM52 Mode D'emploi page 51

en - Trouble-shooting
Cause Does not switch
No supply voltage Check supply voltage
Reversal of polarity Check terminal assignment
Short circuit of output
Faulty signal line Check signal line
Wrong fail-safe mode selected
Extreme radio interference
Water in housing
FEM51:
Holding current of the used
relay too low
Bulk density too low Adjust to lower bulk
density
Extreme external vibrations
Build-up
Faulty electronic insert
Abrasion
No connection to sensor
Endress+Hauser
Switches incorrectly Sporadic faulty
switching
Set
MAX for overfill protection,
MIN for dry running protection
Use screened cable
clean cover and cable
entries and tighten them
securely
Use suitable relay or request
MVT 2Y1278 optionally
Adjust to lower bulk
density
Adjust switching delay
to 5 s
Adjust to higher bulk
density
Display of Display of
maintenance instrument failure
Check terminal
assignment
Remove build-up
Exchange
electronic insert
Exchange sensor
Exchange sensor
51