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Troubleshooting:
Symptom
Possible cause
Action
No motor sound or
movement of the
piston rod
No mains
Wrongly connected signal cables for
moving in and out
• Check the AC supply
• Change cable
• Check the signal wiring:
Outwards: Red wire +24VDC
Inwards: Black wire +24VDC
Actuator stops or no
movement
24 V DC power supply has been turned
off.
• Actuator has been overloaded
>5.5 A.
• The actuator has exceeded the
accepted duty cycle (>10%)
• The power supply will
automatically reengage after
few minutes.
Slow moving actuator The output power has been reduced due
to high internal temperature.
• Actuator is overloaded
• The actuator has exceeded the
accepted duty cycle (>10%)
• The ambient temperature is too
high. Can be caused by direct
sun light impact.
• The power supply will switch
back to normal power when the
temperature has dropped again.
No power for the
hand control
The auxiliary power supply has been cut
off, due to too high power consumption
(>300 mA)
• Check the control cables for
short circuit.
• Too high current consumption in
the control unit.
• The polyfuse will automatically
reengage the power after a few
minutes.
Chapter 3
