NANOQUEST USER GUIDE
Issue 02
2-4
Wiring the NanoQuest for Basic Operation
2.5.2.
The changeover relay contacts allow both fail-safe and fail-secure operation:
Normally Closed Contacts
The normally closed contacts are used for magnetic locks and fail-safe door strikes. Power is applied
in the locked state.
Normally Open Contacts
The normally open contacts are used for fail-secure door strikes. The power is applied in the unlocked
state.
WARNING
You must always fit the varistor across the load as close to the locking device as possi
-
ble. This will protect the NanoQuest from back EMF. The NanoQuest warranty does not
cover damage caused by failure to fit the protection device.
If a door strike is used and a door handle is left in use on the inside of the door, connection to the free
exit button may not be required.
Red
Black
9 to 16V DC
+ve
-ve
Blue/White
Varistor
Orange/Black
Maglock
White/Black
Exit
Button
(normally
open)
Door
Strike
Red
Black
9 to 16V DC
+ve
-ve
Green/White
Varistor
Orange/Black
White/Black
Exit
Button
(normally
open)
