En
gl
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30
8.1 List of faults
8.1.1 Faults with error message
Display in the
"
Alarm
" menu
Possible cause
Possible remedy
Empty
(Alarm)
• Dosing medium tank empty
• Fill tank.
• Check contact setting (
NO
/
NC
).
Low level
(Warning)
• Dosing medium tank almost empty
Motor blocked
(Alarm)
• Backpressure greater than
nominal pressure
• Damage to gears
• Reduce backpressure.
• Arrange for repair to drive if necessary.
Cable break
(Alarm)
• Defect in analog line 4-20 mA
(input current < 2 mA)
• Check line/plug connections and replace,
if necessary.
• Check signal transmitter.
Service now
(Warning)
• Time interval for service expired
• Perform service
(see section
