20
21
Ellard Motor Limit Set-up
9.4 Limit Switch Adjustment (see Fig 22)
The limits are set at the factory to 8 revolutions of the shaft, A 4mm
‘Allen Key’ limit adjuster is used to adjust them further.
Allow the motor to run downwards without the curtain attached
to enable the shaft to determine bottom limit position, without
curtain attached to shaft.
9.5 Adjustment ‘Up’
Run the motor up with the curtain attached, if the motor stops
short of fully open, turn the adjusting screw in the + direction (this
is the adjuster indicated by the rotation of the barrel. This will allow
the motor to run on in the up direction.
Stop the motor before it gets to the fully open position and wind
the adjuster in the – direction until it stops before the fully open
position. Keep the open button pressed and at the same time
slowly turn the adjuster in the + direction until the door stops
at the fully open position. If the motor runs too high, turn the
adjustment screw towards the - direction until the motor stops in
the correct position.
9.6 Adjustment ‘Down’
Run the motor down, if the motor stops short of the closed
position, turn the adjustment screw towards the + direction
keeping the control pressed in the down direction until the correct
position is reached.
If the motor runs too far turn the adjustment screw towards the –
direction.
Set open position as shown in
Fig 21.
9.7 Checking the Limit Positions
Run the motor in both directions until the limit switches cut out the motor travel.
Carry out any fine adjustments. One turn of the adjustment screw corresponds to approximately 70° turn
of the roller tube.
In order that the locking joints
operate effectively, the position
of the shaft in the closed position
needs to be finely adjusted.
Do not adjust past this position as
this will impose excessive loads on
the mechanism.
This motor is fitted with a thermal
trip; this stops the motor from
overheating.
Be aware that excessive running of
the door may cause the thermal trip
to operate, if this happens; please
wait 20 minutes before trying to
operate the door again.
Fig 21
Fig 22
Summary of Contents for AG55
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