Digibell Vandal Resistant System Guía de instalación descargar pdf (Pagina 40)

Digibell Vandal Resistant System

PD-169 Issue 3B Installation Guide Page 40 of 56

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.

• Wires incorrectly positioned in the rising clamp connection of the terminal blocks; unscrew

the terminal fully before inserting the wire to prevent it from going “underneath” the clamp.

• Short or open circuits 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.

The following tables provide a quick indication of the possible fault:

Lock Release Problems

Lock release does not operate

or click.

(refer to Lock Test below)

Connections to the Lock release are open/short-circuited.

Voltage drop; cable diameter is too small.

Lock current is too high; (PSU is resetting or overloaded.)

Lock release jammed due to over tight fitting; check there

is some ‘play’ between the lock and lock release.

Version number displayed on

Entrance Panel (e.g. ‘V3.0’)

when operating the lock release

Short circuit on the Lock +/- terminals

Lock release taking too much current, voltage dipping.

Check PSU, cable diameter and Lock release rating.

Maglock does not hold strongly. Voltage drop due to cable diameter too small.

Holding plate does fully contact magnet.

Lock release operates all the

time or in reverse

Check that the correct lock type is selected:

(See ‘Entrance Panel Programming – LOCK’ on page 24)

EXIT +/- input short-circuit

Exit button is ‘normally closed’ type

(should be ‘normally open’)

Lock operates from the exit

button but not the test button or

phone.

Normally closed switch has been used for the exit button.

Lock Test:

Press ‘Test’ Button on Door Controller BSD-DIG (when system is idle):

Confirm: ‘LOCK’ LED illuminates for 3 seconds or goes out for 3 seconds depending on lock

type selected; Check Output Voltage at LOCK terminals.

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