XFP XFP501E/X - System Testing Procedures; Walk Test and Detector LED Blinking

XFP ENGINEERING MANUAL • Approved Document No. DFU1200510 Rev 3 • Page 29 of 36
WALK TEST
This function allows you to put one or more of the system’s detection zones into walk test mode. When
a zone is in walk test mode, any detector/manual call point triggered on that zone will turn on all of the
sounders that are mapped to that zone for a brief period (note that output sets will not operate). When
the WALK TEST prompt appears, press the Accept4button and the zone selection window will appear:
Use the 5and6 buttons to select the zone you wish to put into walk test mode. Press the
Accept4 button and the following window will appear:
Use the 5and6 buttons to change the zone’s state from Normal Operation to Walk Test Mode and
press the Accept4button. You will now be returned to the Engineering Functions submenu and you
can proceed to test the zone as appropriate (note that you must be in access level 1 if you wish to
view the device(s) being tested).
Should you wish to put additional zones into test at the same time, you can do so by repeating the above
process. To take zones out of test, reverse the procedure. Any zones in test will be indicated at all access
levels via the DISPLAY ZONES IN TEST menu and the ‘test’ LED on the front of the panel.
BLINK DETECTOR LEDS
This function allows you to momentarily assert the LED outputs of loop devices such as detectors and
manual call points in one continual sweep. This is a particularly useful function for helping to locate
any open or short circuit faults on the loop wiring.
LEDs are asserted on all learnt loop devices on a step-by-step basis (each step takes approximately
one second. Therefore, on a system with, say, 80 loop devices, each device will blink once every 80
seconds). You can select the test to be carried out from either end of the loop or from both ends at
the same time. An example illustration of how this test may be carried out is shown below:
When the BLINK DETECTOR LEDs? prompt appears, the following window will appear:
Select the loop you wish to carry out the test on using the 5and6 buttons and press the Accept4
button. You will then be prompted to select from which end of the loop you wish to run the test:
Use the 5and6 buttons to select End A, End B or Both Ends as appropriate and press the
Accept4button. The LEDs of all detectors on the loop will now start blinking accordingly. Note that
addresses do not have to be in sequential order for this facility to work. To end the test press the
Escape3button at any time.
XFP 16 ZONE ANALOGUE ADDRESSABLE FIRE ALARM PANEL
Zone:-1
Zone:-1
Normal operation
Which loop:-1
Which loop:-1 End A Only
END
A
END
B
7
11
12
10
9
6
4
5
8
3
2
1
I
I
13
14
15
16
17
18
19
20
I
21
22
23
Open OR Short Circuit fault here
I
1
Isolator
Loop Devices23to
I
For a fault between points 17 and 18 on the example loop (left):
OPEN CIRCUIT FAULT:
If Direction A (End A) is selected, all devices 1-17 will periodically illuminate with
devices 18-23 not illuminated.
If Direction B (End B) is selected, all devices 18-23 will periodically illuminate
with devices 1-17 not illuminated.
This would therefore identify an open circuit fault between devices 17 & 18.
SHORT CIRCUIT FAULT:
If Direction A (End A) is selected, then all devices 1-14 will periodically illuminate.
The short circuit isolator between devices 14 & 15 will have been activated and
all other devices 15-23 will not be lit.
If Direction B (End B) is selected, then devices 21-23 will periodically illuminate.
The short circuit isolator between devices 20 and 21 will have been activated
and all other devices 1-20 will not be lit.
This would therefore identify a short circuit fault somewhere between the two
isolators containing devices 15-20.