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INSTALLATION GUIDE - REMOTE ACCESS CONTROLLER RAC 4XT • PK3191_10_14
6.0 Annex D Quick Troubleshooting Guide
4. Locking Device Troubleshooting
Symptom Action
Locking Device always unlocked - If the Locking Device Relay LED (D31) on the
RAC4XT controller is ON:
• Verify that the delay setting of the DIP switch
(SW2) is correct.
• Verify that the lock is in not Passage Mode.
- If the Locking Device Relay LED (D31) on the
RAC4XT controller is OFF:
• Verify that the Bypass switch is not active
(Bypass LED, D21, is OFF).
• Verify that the Fire Alarm input not active (Input
contact closed, Fire Alarm LED, D47, is ON).
• Verify the wiring to the locking device.
Locking device does not unlock - If the Locking Device Relay LED (D31) turns on:
• Verify that the Fire Alarm input is not active
(Input contact closed, Fire Alarm LED, D47,
is on).
• Verify the wiring to the locking device.
• If a diode is installed on the locking device,
verify the polarity.
- If the locking device Relay LED (D31) does not
turn on:
• Verify that the Request to Exit or Remote
Unlock activation unlocks the door.
• Verify that the card is encoded properly.
• Verify that the RAC 4XT is not in Lockout
mode.
• Verify that the RAC 4XT is programmed
properly.
Fire Alarm does not Unlock door - Verify that the Fire Alarm input is connected to a
Normally Closed contact.
- Verify that the Fire Alarm LED (D47) is normally on
and turns off when the Fire Alarm is present.
- Verify that the 12V_Lock output of the RAC 4XT
controller is connected to the COMMON of the
locking device relay.
RAC 4XT Controller PCB resets when
relay is activated
- Verify that there is no short-circuit on the locking
device wiring.
- If a diode is installed on the locking device, verify
the polarity.
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