Troubleshooting 23
2. Accessories
Some of the symptoms that can show up because of accessories:
The operator won’t close. | The operator will not run. |
The operator won’t open. | The operator begins to run, then stops or reverses. |
2A.
Whenever the problem is thought to be an accessory and there are more than one connected to the operator, always disconnect one accessory at a time and then test the system. This will hopefully isolate which item is causing the problem.
2B.
If an accessory item is being used as an access control device (used to open or close), falls in the closed position or sends out a continuous signal. The operator will hold the gate in one position until the signal from the accessory is removed.
2C.
In some applications, the gate may begin to move then either stop or stop and reverse within a couple of seconds. This can be caused by an external obstruction device that has failed.
2D.
If there are many accessories attached to and powered by the operator, there may be too much current draw for the operator’s control transformer. This operator can only supply approximately 2 amps @ 24 vac. Double check all accessories for their current requirements.
3. Primary Voltage Circuit
Use extreme caution when troubleshooting the primary voltage circuit! There are five (5) items
in this circuit that could be causing trouble, and they are:
Motor | Contactor (see Figure 15) |
Transformer | Power Disconnect Switch |
3A.
The first thing to check is the incoming power. Is it there at the incoming side of the power disconnect switch?
3B.
If there is power, then check for it at the transformer primary terminals. If there is voltage at the switch and none at the transformer, then you probably have a bad power disconnect and it should be replaced. Check secondary output of transformer for 24VAC output.
Figure 15
Doc
Rev E