Securitron EXD User Manual
Page 15
PN# 500-13350
Page 15
Rev. E, 11/11
7.3 FREE EGRESS FUNCTION
The free egress function puts the XDT logic timer in a different operating mode. When +V is
switched to terminal FE by an alternate action switch, the board goes into free egress mode. In
this mode, use of the exit bar, immediately releases the door for egress. When the bar is
released, the door immediately relocks. Often, a time clock such as Securitron's model DT-7 is
used to put the door into free egress mode during the day and exit delay mode at night.
The free egress mode differs from the bypass mode as
follows: When the door is bypassed, the Magnalock is
released so that both entry and exit is freely possible.
Also, during bypass mode, the board's alarm signaling
functions are suppressed. In the free egress mode, the
Magnalock remains secure so that entry is blocked, but
egress without alarm signaling occurs immediately
when the initiate device is pressed. If lock status
monitoring is in use, the remote alarm relay will still
report a door that doesn't resecure within 5 seconds
after a free egress event.
7.4 LOCK POWERED AFTER RELEASE DELAY MODE (DELAY CONTROL)
In ordinary delayed exit, the fail safe lock releases after the delay and remains released until the
reset switch performs relocking. In facilities where a threat exists from the outside, the question
arises as to security against unauthorized entry after the release delay has expired. It may be
that the delayed exit cycle was initiated by mistake or as an act of vandalism. It may take some
time for a guard to arrive at the door to effect relocking and there is always some risk that
security procedures will fail, despite the alarm signals, and the door will be left in this released
state for an extended period of time.
The XDT can be set so that after the release delay expires, the fail safe lock remains
engaged so long as the initiate device is not being pressed. When the initiate device is
pressed, the lock immediately releases but resecures after the initiate device is no
longer being pressed. This preserves security from the outside. To implement this,
simply run a wire from terminal DC to terminal IN. This is the only use for terminal
DC. We believe that this method of operation meets the intent of all exit delay codes
but it is certainly possible that conservative safety officials might reject it, so we advise that
specific approval be sought for this variation.
8. MAGNACARE
LIFETIME REPLACEMENT WARRANTY
For warranty information visit
www.securitron.com/en/site/securitron/About/MagnaCare-Warranty/
WHEN +V IS SWITCHED
TO "FE", THE BOARD IS
IN FREE EGRESS MODE.
THE INITIATE SWITCH
IMMEDIATELY RELEASES
THE LOCK WITH NO ALARM,
EXCEPT OPTIONALLY FROM
THE LOCK STATUS
MONITORING FUNCTION.
+
LS
BP
FE
IN
IN
RS
DC