ARI Armaturen ARI-PREMIO - Manual (Page 52)

Page 52 0040501000 4511
Operating and installation instructions
Thrust actuator ARI-PREMIO
9.0 Troubleshooting table
ATTENTION !
- read point 10.0 and 11.0 prior to dismantling and repair work!
- read point 6.0 before restarting the plant !
Fault Possible Causes Remedy
Thrust actuator fails to move Power failure Ascertain and eliminate cause
Fuse has blown Replace fuse
Thrust actuator not properly
connected Rectify connection on thrust
actuator in accordance with wiring
diagram
Short circuit due to:
- moisture
Ascertain exact cause,
- Dry the thrust actuator and
eliminate leakage
- wrong connection - Rectify connection on thrust
actuator in accordance with
wiring diagram
- motor has burned out - Check whether the mains voltage
agrees with the voltage specified
on the rating plate. Have motor
changed.
Connector contacts not plugged in/
not properly plugged into jack strip Insert connector firmly in jack strip
thus affected
(Only for 12 - 15 kN)
Handwheel is still engaged and
does not disengage when the
motor starts up
Unscrew the motor mounting
screw closest to the cable feed-
through. (Manual release of the
handwheel disengagement
mechanism.)
Thrust actuator alternates
between clockwise and
counter-clockwise rotation Motor operating capacitor
defective Have motor operating capacitor
replaced
Thrust actuator fails to run to
final positions and also
produces chatter Load-dependent travel switches
out of
/ defective
Remove thrust actuator and send
to factory for repair
Voltage drop due to excessively
long connecting cables or
inadequate conductor cross-
section Lay connecting cables in
accordance with requisite output
Mains fluctuations beyond
permissible tolerance travels Arrange for "clean" mains system
within requisite tolerances
System pressure too high Reduce system pressure
Periodic failure on thrust
actuator Loose connection on feedline Tighten connections on terminal
strips
Thrust actuator is switched off
in retracting direction prior to
load-dependent switch (three-
way valve) Travel switch S3 not set
corresponding to use Set travel switch S3 in accordance
with operating instructions