Technical information
DOORKING SYSTEMS access control solutions
ACCESS CONTROL SOLUTIONS . . . 6 Preventative Maintenance Guide
GATE INSTALLATION
The physical installation and wiring of the operator is a critical factor in reliable gate operation. When
servicing a gate system, double check some of the installation factors to see if they may be the source of
the problem.
• Location of the Operator - S
LIDE GATE OPERATORS should be located within a couple of
inches of the gate, with the concrete pad beneath the entire operator. Do not hang the back edge
of the operator over the pad. Also, make sure the operator is mounted square to the gate and
that the chain runs straight through the operator.
SWING GATE OPERATORS must be located to provide proper arm geometry and smooth gate
movement. The Arms should rotate 180° when running from the Closed to the Open position.
• Mounting the Operator - Make sure that the operator is securly mounted to the concrete pad.
There should be no movement of the operator on it’s mounts.
• UL 325 related Devices - Proper installation of all related Entrapment Protection Devices will
significantly improve the gate system reliability. This includes any Reversing Edges on the gate
and all Photo Cell devices. Test all devices for proper operation.
TRACKING DOWN THE PROBLEM
Many gate system operational problems or failures can be difficult to track down. It is sometimes helpful
to isolate what area is causing the actual problem. With the new UL 325 requirements, Gate Operators
may also enter a “Shutdown” condition if the operator senses an obstruction. Please keep in mind how
Gate Operators will function and react due to the new UL 325 requirements:
UL 325 Related Functions - The updated UL 325 related functions affect how the gate operates.
These may result in a gate not responding to open or close commands, getting “Stuck” in the Open
or Closed position, or reversing during operation. Remember the following gate conditions:
Photo Cells, if connected to the UL terminals will Stop the Gate, not reverse the gate.
Soft Shutdown - If the gate senses an obstruction in either direction, it will reverse and
return to the Limit Position. If the gate is closing, it will reverse and return to the full open
position. IT WILL NOT TIME OUT AND CLOSE. It will Hold at the OPEN
position until an open command has been given to the gate (Loop, Remote, Keypad, etc.)
If the gate senses an obstruction, reverses and senses a 2
nd
obstruction, it will stop and enter
an Alarm or Hard Shutdown condition. The gate will not function until the gate is reset.
All access devices will be disabled, including the Phone Entry system, RF Control, Card
Readers, Keypads, etc. An Alarm Tone will sound for 5 minutes following a shutdown.
After 5 minutes, the Alarm Tone will beep every 5 seconds, indicating that the operator is
in a Hard Shutdown condition. Activate the Alarm Reset button (by Power Switch) or
cycle power OFF / ON to reset gate system.
On the following pages we provide some simple troubleshooting tips and common adjustments that
can help maintain proper operation for your system. When working on the system, keep notes on
what steps you have taken and what problems you observed. This will help the Service Technician
repair your system, should a service call be required.