Bell System BL106 Manuel d'utilisateur télécharger pdf (Page 30)

CS106/BL106 Combined Door Entry and Coded Access

Troubleshooting

Use the table below to determine the most probable cause of a fault condition.

Symptom

Possible Cause/Remedy

When power applied nothing

happens (LEDs do not flash)



Power Supply is overloaded. Remove

externally connected components until

the fault disappears.



Polarity not correct. Measure the

voltage at the C106 (+ , -)



Check Power Supply Fuses. Always

replace with fuses of the correct type

and rating.

Lock release operates in

reverse



Incorrect output has been used;

Transpose connections between

Fail-safe and Fail-secure outputs.

Red and Green LEDs flash

together when attempting to

operate lock-release.



Fail-secure Lock release output is

short-circuited or of an incorrect rating;

temporarily disconnect the lock release

and retry (Green LED on for 3

seconds), test lock release (page 28)

The lock release fails to

operate when the Test button

is pressed



Check the lock release and its wiring by

moving the lock connections to +

C, -H, (forcing the lock)



Measure the voltage on the FAIL SECR

terminals; this should be the same as

the power supply (13.8V) while the test

1 2 ... 25 26 27 28 29 30 31 32 33 34 35 ... 47 48

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Bell System BL106 Manuel d'utilisateur Page 30

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