bellagio Digital Entry System
PD
–
281 Issue 1
Installation and Operating Manual
Page 45 of 52
Troubleshooting
Common Faults
A very high percentage of calls to our technical support number, regarding new
installations, are resolved to faulty wiring. The reasons for these are various:
–
Broken cores, especially short links, sometimes broken inside the insulation!
Connectors clamped onto the insulation instead of copper.
Wire in the wrong side of a rising clamp connection, the clamps need to be unscrewed
far enough to stop the wire going “underneath”.
Shorts or opens due to cables having been stapled or nailed through.
A common fault is wiring a connector left to right instead of right to left, or one or more
twisted pairs the wrong way round.
Tip
. The heads of screws on connectors are not a reliable means of making a connection
with a meter, try pushing the probe into the wire entry point.
Quick Fault Reference
These tables provide a quick indication of the possible fault.
Lock Release Problems
Lock release does not operate
or clicks but does not open.
Connections to Lock Release are open or shorted.
Voltage drop due to cable too thin.
Lock current is too high; Power supply is resetting.
Lock release jammed due to over tight fitting.
Maglock does not hold
strongly.
Voltage drop due to cable being too thin.
TEST:
Press ‘
Test’
Button on Door
Controller (when system idle):
Confirm ‘LOCK’ LED illuminates for 3 seconds.
Check Output Voltage at LOCK terminals.
Lock release operates all the
time or in reverse
See Panel Programming
–
Lock on page 26 and
check that the correct lock type is selected.
Normally closed switch has been used for exit button.
Lock operates from the exit
button but not the test button
or videophone.
Normally closed switch has been used for exit button.
Power Problems
PS4 output voltage fluctuating,
meter reading unstable.
Output overload is causing current limit to operate;
check allocation of controllers to power supplies, see
page 10 for details.
See Lock Problems below.