Door Direction Assesment

The motor direction will depend on which side of the shaft the Operator is mounted.

In order to assess the correct direction of movement of the door first release the Manual Over-Ride Lever and move the door manually to a half open position. Then re-engage the Manual Over-Ride Lever. Momentarily press the Control unit case lid button. The door should initially run in the OPEN direction and is confirmed by the illumination of the OPENING LED at the top right hand side of the control panel (pic 34). Now press the case button to stop the motor. Then isolate the main A/C power supply.

If the door runs in the closed direction, isolate the main A/C power supply and set SW7, the Motor Polarity switch to the opposite position. DO NOT MOVE THE SWITCH WHILST THE MOTOR IS RUNNING.

DOOR SPEED CHANGE POINT CALIBRATION

Release the Manual Over-Ride Lever and move the door manually to the fully closed position, re- engage the lever and re-connect the mains power supply. The microprocessor reference for the door ground position should now be set. The procedure is referred to as a CALIBRATION RESET. This is completed as follows:

1.Press and hold the Reset button. (see pic 32 and 33).

2.Press and hold the Program button.

3.Release the Reset button.

4.Wait until the Acknowledge LED flashes (and beeper sounds).

5.Then release the Program button.

6.The Acknowledge LED will flash twice (and the Beeper will sound two beeps) to confirm.

Now momentarily press the control unit push button. Note that the opening LED is illuminated whilst the door is opening. (pic 34)

The door will run in fast speed for a few seconds then change to slow speed and stop when it

Pic 32

Pic 33

Pic 34

compresses the buffer springs, if fitted, or reaches the fully open position when the counterbalance cables are pulled tight.

The microprocessor now knows the door opening height and will calibrate the speed change points after the next few runs, until they are set a few seconds from each limit of door travel.

Now momentarily press the case push button to run the door in the close direction.

Note that the CLOSING LED, LD4, is illuminated whilst the door is closing. (Pic 35 overleaf)