3
6. To Ensure Instant Release
All switching devices must be
wired in between the DC power source and the positive
terminal of the lock in Fig. 4.
Switching
the
negative
power
supply line will not allow the lock to release immediately.
This Schlage Lock contains TVS for surge suppression
and does not require any additional suppression to be
added during installation.
Lock Monitoring Features
The
lock
M390RFK
is
equipped with remote indication features that operate as follows. Each of these features will provide
indication as to the lock status.
See Fig. 3 for wiring diagram.
INCORRECT
+
-
SWITCH
FILTERED DC SUPPLY
SWITCH
+
-
CORRECT
FILTERED DC SUPPLY
Fig. 4 – Power
Connections
MBS – Magnetic Bond Sensor
This feature can detect the quality of the locking bond between the
surface of the magnet and the armature plate. The sensitivity of
this feature is such that a foreign object with a thickness of .007”
(.18mm) is sufficient to allow the sensor to detect a problem.
Due to the sensitivity of this feature and the necessity to maintain
a reliable locking bond, these surfaces must be kept free of
contaminating materials. Both the lock surface and the armature
plate must be cleaned periodically with a non-abrasive cleanser.
Alignment of armature plate and magnet is required to ensure
proper function of sensor. Status is indicated locally via an LED
mounted on the bottom of the lock housing.
DSM – Door Status Monitor
The DSM feature monitors the position of the door upon which
the lock is installed. A SPDT reed switch mounted within the lock
cavity eliminates the need for extra sensors to be installed on
the door for notification of security or access control systems.
