Service manual

Troubleshooting
V Series Service Manual 3–11
Alarm
troubleshooting
This table summarizes the possible causes of valid and false alarms
based on the type of alarm (siren, strobe, or security system) indicated
(or not indicated). The causes are listed in the order of likelihood. (The
most likely cause is first, and so forth.)
You notice… Possible causes include… You should…
A local alarm (the card or keypad
reader’s own alarm sounds and/or
displays).
a. Door is propped open, triggering
the Door Open Too Long (DOTL)
alarm.
a. Secure the door. You may want
to change the DOTL alarm
settings with the IPS program or
handheld terminal to allow more
time to close the door.
b. Door contact wiring is
disconnected, loose, or cut.
b. Secure all of the door wiring.
c. Door is not latched completely. c. Secure the door. You may want
to install a door closer if the door
does not have one, or adjust the
door closer.
d. Door latch is taped retracted so
that it does not latch in the door
strike.
d. Remove the tape and secure the
door.
e. Door contact is bad. e. Replace the door contact.
Alarm output device is triggered.
This device could be a siren, a
strobe, a security system, or any
combination of security alarm
functions.
a. Entry has been forced. a. Secure the door.
b. Door is propped open, triggering
the Door Open Too Long (DOTL)
alarm.
b. Secure the door. You may want
to change the DOTL alarm
settings with the IPS program or
handheld terminal to allow more
time to close the door.
c. Controller has been tampered
with.
c. Secure the door.
d. Door contact type has been
specified incorrectly.
d. Change the door contact
information with the IPS program
or handheld terminal.
e. Door has been accessed using a
key.
e. Cancel the alarm. Remind the key
holders to disarm the alarm
system prior to using their key.
f. Door contact wiring is
disconnected, loose, or cut.
f. Secure all door wiring.
g. Request–to–exit (RQE) wiring is
disconnected, loose, or cut.
g. Secure all RQE wiring.
h. Door latch is taped retracted so
that it does not latch in the door
strike.
h. Remove the tape and secure the
door.
No alarm (when expected). a. Alarm output duration is not set
properly.
a. Set the alarm output duration
with the IPS program or handheld
terminal.
b. Alarm wiring is disconnected,
loose, or cut.
b. Secure all of the alarm wiring.
c. Alarm device is bad. c. Replace the alarm device.