Manaras Opera Opera-GH, Installation And Instruction Manual

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41
SYMPTOM PROBABLE CAUSE SUGGESTED ACTION
Reversing devices
will open the door
when the door is
closed.
The advanced close limit switch is
defective.
Replace.
The advanced close limit switch is not
being engaged by travelling cam.
The advanced close limit switch needs to be
adjusted just slightly ahead of the end of travel
Close limit switch.
When door closes it
reverses to fully open
after it hits the floor.
The advanced close limit switch is
defective.
Replace.
The advanced close limit switch is not
being engaged by travelling cam.
The advanced close limit switch needs to be
adjusted just slightly ahead of the end of travel
Close limit switch.
A "Close" command is being given.
Check "Close" push-button or any closing
device for short-circuit.
Radio-control does
not function or
hesitates for 10
seconds before
working.
It is normal for a radio receiver to take
up to 10 seconds to "warm-up" before
being fully operational. Therefore,
when applying power for the first
time, the radio-control will take 10
seconds before becoming fully
operational.
Check protocol code pins of the transmitter and
receiver: they must be the same. Press on the
transmitter and listen to the receiver: you should
hear a faint click. The transmitter battery may
be dead or your receiver may need servicing.
To test for radio-control function, short out
momentarily terminals 7 and 8 on the terminal
strip. Operator should function normally. Have
the radio-control verified: the mini-relay inside
the receiver may be defective.
Motor hums, starts
when spun.
Capacitor defective. (single phase
only)
Replace
Motor fails to shut off
at fully closed or
opened positions.
Defective limit switch.
Operate limit switch manually while door is
moving. If door does not stop, replace switch.
Limit cams are not adjusted. Verify and adjust.
Limit drive chain broken. Replace.
Loose sprocket on limit shaft. Tighten set screw.
Limit shaft does not rotate. Verify and replace accordingly.
Motor turns but door
does not move.
Sprocket key is missing. Replace.
Drive chain is broken. Replace.
One of the reduction chains is broken Replace.
Clutch is slipping. Adjust clutch tension.
Motor hums or does
not run.
Door locked or jammed. Verify manual operation of door.
Dead phase (three phase supply). Check power supply, fuses on each phase.
Limit switches do not
hold their setting.
Loose drive or limit chain allows chain
to jump sprocket teeth.
Adjust chain to proper tension
Limit cam retainer not engaging slots
in limit cams.
Be sure retainer is in slots of BOTH cams.
Limit cams are binding on shaft
threads which allows them to jump
position on retainer.
Lubricate shaft threads. Limit cams should turn
freely.
Radio-control opens
and reverses the
door, but when the
door is fully opened,
will close the door a
little and bounce
back to the open
position again. Door
cannot be closed
except by the "close"
push-button.
The Advanced Open limit switch is
insufficiently advanced from the full
Open limit switch. The contact of the
radio-control receiver is maintained
for 1.5 seconds when a command is
issued by the radio transmitter.
Therefore, when the door is fully
opened, and a pulse is sent from the
transmitter, the receiver maintains the
contact closed for 1.5 seconds. If the
door has closed and the
Advanced
Open limit switch has returned to its
normal state, the reversing relay will
be activated, and the door bounces
back to the open position.
Adjust the Advanced Open limit switch by
bending the limit switch lever punch away from
the travelling cam and more towards the
Open
limit switch.