Menvier Security TS2500 Podręcznik Użytkownika Pobierz pdf (Strona 25)

Fault Finding

TheTS2500 has various diagnostic functionstohelpyou

infault finding on the system. To access these functions

go to Engineer’s Menu 3 option 9. The most useful of

these functions are:- Confirm Network devices, View

Network Devices and Network Errors. Please refer to

page 22 for more details.

One of the most difficult of faults to find is when the

control panel loses communication with an item of

remote equipment, for example an XNODE. This may

be caused by one of the following problems: network

equipment faulty, power supply faults, earthing faults,

or cabling faults.

1. Use Network Errors to check if you have any

data problems. The keypad displays the

location of the last device problem, for

example:

NETWORK 1 0010

LAST ERROR 2,07

2. Press 0 to reset the error counter.

3. Power down and disconnect the NODE

indicated in the display (2,07 in the example

shown above). Replace the device that has

gone missing and power up.

4. Repeat steps 1 and 2 to check whether there

are any data errors. If there are no errors then

the NODE you have replaced was faulty.

5. If there are still errors then the problem may be

with the previous NODE or cabling faults.

Ifyou cannot isolate the fault to one item of equipment

it is possible that the dc power supply to the remote

equipment is low. Starting at the end of the network

farthest from the panel put your meter to low DC and

connect the red lead to A and the black lead to B. The

meter should read at least 12V all along the network

line.

If the meterreads lessthan 12V then you may need to

decrease the resistance of the cables by doubling up,

or adding a remote power supply.

If the power supply voltage is adequate check for

earthing faults. Set your meter to low ac and connect

the black lead to earth and the red lead first to A and

then to B.

Themetershouldreadno higher than 1V. If the reading

is higher then you have ac hum on the dc line. Fit an

appropriate filter.

While the black lead is still connected to earth set the

meterto low dc. Connect the red lead to A and then to

If the metershows astable readinggreater thanabout

0.5V then youmay have a short toearth. Disconnect A

and B from panel and retest for earth faults on cables if

no earth faults the pcb is earthed elsewhere.

Please note that some power supplies have a

grounded printed circuit board. If one of these is

connected to your network then you will have earthing

problems. We recommend using our PS1 and 519.XB

power supplies.

If none of the problems above exist then check the

continuity of the cable.

Ifall else fails then powerdown the panel and connect

asingleXNODEtothepanelonashort length of cable.

Power up the panel, the keypads display the “Relearn

Required” message. Confirm that only one device is

connected, as described in the TS2500 Installation

Manual. Check again for network errors. If the keypad

still displays networkerrors thenpower down againand

connect the XNODE to another network. Power up,

confirm that onlyone XNODE is connectedand check

againfornetwork errors.Iftheerrorshavegonethenthe

control panel has got a faulty network.

TS2500

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