Detex DTX-4300 - Manual (Page 98)

5.2 Flow Charts
External Request to Exit Input Not
Activating prox.pad plus
1. Meter and verify correct prox.pad plus voltage. 2. Reference
prox.pad plus instructions.
Perform power integrity test
(section 5.3).
YES
1. Resolve issue. 2. Erase prox.pad plus
memory to erase any program glitch.
NO
NOTE: A glitch in the prox.pad plus program might result from using a
power supply that is not filtered and regulated properly. For extra
filtering suggestions, call IEI technical support.
Troubleshoot per instructions
in Table 5-1.
FAIL
PASS
1. Verify that door position switch closed before
attempting to engage the REX. (prox.pad plus
ignores this input when door is open.) 2. If no door
contacts are used, jumper input together with a
piece of wire and try again.
Solved! Shut the
door.
PASS
1. Disconnect any devices connected to white,
orange, and brown. 2. Short the W and
O wires together and maintain connection. 3.
Momentarily short the O and B/R terminals to
activate the egress input. Does the prox.pad plus
work?
FAIL
Bad
prox.pad
plus
NO 1. With the door contacts closed, meter continuity
between exit switch and wires from prox.pad plus.
(Meter should read an open and then a closed
circuit when exit device is activated.) 2. Reconnect
exit switch. 3. With door contact input closed, try
the switch again.
YES
1. Verify that no other equipment is monitoring
same door contacts as prox.pad plus. 2. If so,
disconnect all other devices on that set of
contacts, except the prox.pad plus. 3. Try
again.
PASS
1. Verify that exit device is "dry contact"
and no induced voltages, A/C or D/C, are
being applied to input. 2. More than one
volt?
FAIL
Locate source and
eliminate. (Circuit requires
a dry switch.)
If problem persists,
see Note at bottom.
YES
NO
Chapter 5: Troubleshooting 5.2 Flow Charts
5-4 prox.pad plus Install/Program. Manual, PPP, D4b
Part No. 6105679, Rev. 1.1