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Installation of Limit Switches and Positive Stops
Positive stops are physical structures the doors come in contact with at the end of the opening and
closing cycles.
Although the E-SC 1602 control board comes equipped with a cycle time learning function,
physical stopping mechanisms must still be used. This can be done with limit switches (not
included), positive stops (not included) or both. These must be installed before learning.
If using positive stops you must be on operating parameter:
Positive stops
Mounting the limit switches
Slide the limit rings on the top side of the transmission shaft. Line up the holes on the limit switches
with the holes on the top of the operator. Manually release the arm.
CLOSED DOOR LIMIT SWITCH
Move the door into the full closed position then
move the bottom ring so it is pushing the switch
on the bottom limit switch in. Tighten the screw
on the bottom ring to secure it in place (see next
page for screw close up).
4.3
OPEN DOOR LIMIT SWITCH
Limit switches
Move the door into the full open position.
Move the top ring until it is pushing the switch
on the top limit switch in. Tighten the screw on
the top ring to secure it in place.