Scantronic 8136UK-50, Инструкция по установке и эксплуатации

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496339 Issue 4 33 of 44
IDIS Fault Finding
If the IDIS system is programmed and connected but either doesn't work
correctly or is inconsistent then this section describes steps you can take to
isolate the fault.
Work on one loop at a time to avoid confusion. Faults on one IDIS loop do
not affect other loops provided you have not linked the loops remote from the
panel.
Use the Simple Test Method described on the next page if you have just one
or two faults per loop. In this case it is best to assume at first that faults are
located at the modules the system reports as faulty.
Use the Thorough Test Method on the following page if there are more than
two faults per loop, or the initialisation is inconsistent from one time to the
next.
Before testing run Menu 33 Initialisation a few times. If there are any faults
then the display shows the highest zone number as the first fault. You can
see any other faults by pressing the up arrow key (the A key). Table 1 shows
the meaning of the messages that might be displayed.
Table 1. Menu 33 Initialisation Fault Reports for IDIS
Fault report Meaning
Loop xx overcurrent 1. A module tamper loop shorted to 0V (N/A
to LIMs).
2. A short between 0V and bus signal.
3. +12V and bus signal crossed at one or
more sensors.
All zones on a loop missing. 1. A module tamper shorted to +12V (N/A to
LIMs).
2. Broken wiring.
3. Excess capacitance on IDIS bus.
Duplicate module 1. One or more modules have the same ID.
2. A module alarm loop shorted to bus (N/A
to LIMs).
Note:
1. Use Menu 33 Initialisation to re-initialise the IDIS loops every time you
change the wiring. This is the only way to recover any modules that the system
reports as missing.
2. Make sure that the panel is in IDIS programming mode (Menu 22) when
connecting or disconnecting IDIS bus wires. This ensures that the bus signal is
static at 0V and avoids the (very remote) possibility of accidentally reprogram-
ming any of the modules attached to the IDIS bus.
8136 Simple Test Method