Installation manual

PCX 256 PROGRAMMING MANUAL
Page: 66 RINS868-6
RS-485 BUS PROBLEMS
Fault Description Solution
DEVICE FAIL
xxx
Device on RS-485
communications bus failing
to communicate
Identify device from numeric code.
Check device addressed correctly to match
programming. Check connections at device, and
cabling to it. If above correct, re-boot device,
followed by re-boot of End Station.
485/COMMS
LOST
Displayed on keypad that
has not yet established
communications with End
Station
Part of routine initialisation procedure.
If persists, check display at other keypad(s) to
confirm if device failure at that keypad or complete
system RS-485 failure (temporarily attach
additional keypad direct to End Station if
necessary).
Keypad
display is
BLANK
Keypad address does not
match any keypad enabled
Check keypad address, noting that a keypad at
address 00 must be present to program system.
Also check "Assigning Keypads" menu in Engineer
mode set up correctly.
KEYS
LOCKED
OUT
More than one device
connected at the same
address
Correct addressing so that no overlaps. Then
power system down and up again to correctly
reinitialise.
DETECTION FAULTS
Fault Description Solution
SAB
TAMPER
Tamper fault detected on
connection from SAB
Terminal BT should be at or near 0v.
If not, is SAB Tamper switch closed?
Check Fuse F6 intact, and connections to SAB.
CASE
TAMPER
Case tamper switch open Secure switch closed
SIREN x
TAMPER
STROBE
TAMPER
Monitors for German
specification fault
conditions on relay plug-on
PCX- and above.
For UK use, Site Option "DIGI-REPLY" should NOT
be set to 'Relay monitor'.
Code
Guessing
Up to 30 Invalid key
presses have been entered
or 7 invalid tags have been
presented.
Press the X key to clear.
POWER SUPPLY PROBLEMS
Fault Description Solution
BATTERY
FAULT xxx
Battery Fuse (F4) failed,
OR Battery not present,
OR Battery volts low
Note:
This indication should be expected
during recharge after a mains failure.
BAT LOAD
FAIL
Battery Load Test has
failed
Only displays if option selected.
Battery uncharged or capacity below specification
may need replacing.
BATTERY
CRITICAL
Battery being disconnected Protects battery from deep discharge damage
during extended mains failure.
Note:
System is now powered down!