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iTDC Quick Installation Guide
Mar.11.2010
24V DOOR LOCK AND AUTOMATIC DOOR WIRING
When you control 24V door lock or automatic door, wire the door lock depending on Power Fail Safe or Power Fail
Secure. But separate power source must be applied and use external Relay in both Power Fail Secure and Power
Fail Safe door lock.
(Figure: 24V Door Lock and Automatic Door Wiring)
If you don’t use separate power source and external Relay for the 24V door lock and automatic door,
relays of iTDC may have damages and some malfunctions will appear.
Caution
24V Automatic Door
