Lock Is Not Locking According To The Way I Have Set The Switches - Assa Abloy LOCKWOOD 3782 Troubleshooting Manual

3-Wire Control using a Separate Power
Supply for the Control/Trigger
When using a different Power Supply for the Control Line (Green Wire) to that of the Power Supply to the Lock (Red
& Black Wires), the Common/Negative line of both Power Supplies must be tied together. This allows the Control
wire to complete the circuit and actually trigger the Lock operation. Failure to connect the two negatives will make
the lock inoperable.
2-Wire Control
2-Wire Control is where the Lock receives a constant Negative (Black) and the Lock status changed using a Positive
trigger on both the Positive (Red) and Control (Green) wires, which are tied together.
Lock Control must be switched on Positive ONLY. As the Lock Body is grounded, if the Door Frame and Door are also
grounded and switching is performed through the Negative/Ground wire, the Lock will remain energised constantly.

Lock is not locking according to the way I have set the switches

• The setting switches will not take effect until the lock has fully powered down. Disconnect all power from the lock
and wait at least 2 minutes and then retry.
- If the problem persists, return lock for investigation.
5 Lockwood 3782EL Trouble Shooting Guide
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