Instruction manual
Setting Travel Limits 
IMPORTANT NOTE: The OPERATE button 
will not function until the open and close limit 
positions are set. 
NOTE: The door and shuttle must be engaged 
into the chain index. The door should be open 
approximately half way.
Note: If Safety Infra-Red Beam are to be used 
they must be installed before setting the travel 
limits.
Step 14.1 - Setting Limits Positions
Remove the controls cover to access the controls panel as 
shown in (Fig. 22). Replace it when setup is completed.
Step 14.2 - Connect Power to the Drive unit
Plug the power cord into a mains point and switch power 
on. The red CLOSE LIMIT LED will be fl ashing.
WARNING: The safety obstruction detection 
system is inoperable while MINUS (-) and 
PLUS (+) drive buttons are being used and 
travel limits are not set.
Step 14.3 - Set the Datum Position
Press and hold the MINUS (-) or PLUS (+) buttons to 
move the door to the halfway position. Ensure that the 
door, shuttle and chain index are engaged.
Using a small screwdriver, turn the DATUM ADJUST 
screw until the STATUS LED comes on (Fig 23).
Note: If the STATUS LED is already illuminated when the 
door is halfway up, turn the DATUM ADJUST screw until 
the light goes off, then turn back one notch to illuminate 
again.
Step 14.4 - Set the Limits Positions
Press and hold the MINUS (-) button until the door 
reaches the desired close limit position. Single presses 
will inch the door closed (Fig 24).
Press the SET button to store the close position into 
memory (Fig. 24).
Press and hold the PLUS (+) button until the door 
reaches the desired open limit position. Single presses 
will inch the door open (Fig. 24).
WARNING: The door will automatically close, 
open and close again once Step 12.4(d) is 
performed. Ensure that no persons or objects 
are in the door’s path.
Press the SET button to store the open position into 
memory (Fig. 24).
The door will now automatically close and open to 
calculate the safety obstruction settings. After this, the 
opener can be operated with the OPERATE button.
a.
b.
a.
b.
c.
d.
e.
Fig. 24
Fig. 23
Fig. 22
Controll-A-Door
®
 S
Instruction Manual14










