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1) Receiver has no power and the Safety Edge relay output is "closed" as a result.
- Ensure that a STEADY 24 VOLTS are present; if DC is used, the red lead must be "positive"
2) Make sure the receiver switch #5 in "ON" for 2-wire w/termination; "OFF" for 4-wire Phantom Edge.
1) Receiver has had a Power-On-Reset and has not heard from the sensing edge transmitter since
the power-on, causing a Communication Time-Out Fault (the red LED on the receiver will be
DOOR WON'T CLOSE OR REVERSES TO FULL OPEN WHEN IT ATTEMPTS TO CLOSE:
polarity.
DOOR STAYS IN CONSTANT PRESSURE MODE:
"ON" solid).
* Check that the power to the receiver STAYS on when the limit switches are reached, and when
any of the Operator push buttons are pressed.
2) Receiver has a slowly blinking red LED; this means that the transmitter has a low battery.
* Use a lithium 9-volt battery for cold weather operation; an alkaline battery will work in mild
weather, but has about half the capacity of the lithium types.
3) Receiver has a fast blinking red LED; this means that the transmitter sees a sensing edge
termination fault. If the edge is a 4-wire type, one of the safety edge wires may not be making
contact in the connector in the transmitter, or the sensing edge is faulty. If the edge is of the
terminated 2-wire type, the transmitter is not seeing the terminator resistor.
* Make sure that switch #5 on the transmitter is OFF for 4-wire, and ON for terminated 2-wire.
This unit will not function correctly with a non-terminated 2-wire edge. The terminated edges
can be identified two ways; 1) There will be a blue band around the pigtail as it exits the edge;
2) The edge will measure 10K ohms between the two leads if checked with a multimeter.
1) Check that the Door Operator "sensing edge cut-out" switch is correctly adjusted to within 6"
of the floor.
DOOR FAILS TO REVERSE WHEN IT CONTACTS AN OBSTACLE:
2) Check that the receiver's sensing edge relay output wires are intact and still connected to the
Door Operator's sensing edge input terminals.
3) Check the receiver sensing edge relay output jumper; the jumper should be placed on the N/O
pins for the channel one (green and orange wires) normally-open relay contacts.
