Vedard Alarm Security Export Sales Company
Vedard Alarm Security Export Sales Company
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Alarm System Troubleshooting–Part 2 Alarm Control Panel
Source: www.vedardalarm.com
Date: 2017/02/23
Alarm System is a security system consists of 3 parts alarm units. They are detectors, alarm control panel and CMS. We will share our working experience of alarm system troubleshooting categorized into 3 articles according to these 3 parts.

1. The alarm system does not alarm after system armed or forced armed and wired detector is triggered, why?

Possible causes: wiring error such as wired detector is not connected with alarm control panel correctly, short-circuit or cut of wiring between wired detector and alarm control panel, low voltage of the detector or end line resistor is not wired or not correctly wired. Programming error such as zone attribute is not programmed or not correctly programmed.

Solution: Check and confirm the wiring between wired detector and alarm control panel is good and end line resistor is wired correctly. Check the supplied detector voltage and confirm it is not less than 9V. Check the zone attribute is edited correctly.

alarm system troubleshooting
alarm control panel
The alarm system does not alarm after system armed or forced armed and wireless detector is triggered, why?
Possible causes: The detector battery voltage is low. The detector is not correctly learned to the alarm control panel. The detector is not programmed into the alarm system zone or zone attribute is not programmed correctly. The distance between wireless detector and alarm control panel exceeds rated distance. There is metal block between wireless detector and alarm control panel.
Solutions: Change the battery and re-enroll the wireless detector to the alarm control panel, correctly programming the detector zone attribute. Shorten distance between wireless detector and alarm control panel. If there is metal block, please replace the wireless detector.
3. The alarm control panel can not receive remote signal and transferring signal, why?

Possible causes: Power supply is not enough for remote controller or signal transceiver, the wireless remote or transceiver is not enrolled correctly into the alarm control panel. The distance between the remote or transceiver and the alarm control panel is too long. Alarm control panel can not decode the received signal.
Solutions: Change remote battery and re-enroll the remote controller to the alarm control panel correctly. Shorten the distance between the remote control or the transceiver to the alarm control panel. If above solution does not work, there maybe problem of the wireless receive module of the alarm control panel and it should be return to factory for repair.
4. The alarm control panel makes false alarm, why?
Possible causes: the detector fault or wrong installed.

Solution:
Check which zone triggers alarm and check the detector.
5. The alarm control panel makes sounds at normal work status.

Possible causes: The alarm control panel can make sounds of alarm, fault alert, delay arm sound, alarm delay sound etc.
Solution: Check and identify which sound the alarm control panel made then solve the problem according to the sound. If no alarm is triggered by detector and no instruction is made to the alarm control panel and it makes sound, then there maybe the alarm system error.
6. External siren is wired to the alarm control panel, but it does not sound when alarm control panel alarms.
Possible cause: the Positive and negative wiring between siren and control panel is reverse or short-circuit. The siren voltage is low (less than 12V). The external siren is not programmed or correctly programmed to the alarm system.
Solutions: Check and confirm the wiring is correct. Check and confirm there is 12V voltage output to the siren when the system alarms. If not, please program the system and turn on the external siren. If all above is ok but still no output from the external siren, please change a siren to test or change a alarm panel to test.
7. The alarm control panel does not dial alarm receiving number when it alarms.
Possible causes: strong interference or short-circuit, cut of the telephone line. The receive phone number and communicate format, communicate grade is not programmed correctly to the alarm system. The telephone theft function is turned on.
Solutions: Check and confirm the telephone line is good without strong interference, short-circuit and cut. If additional code is needed for outline dialing, please add it to the receive phone number when program it.
8. The alarm control panel does not dial CMS telephone number when it alarms
Possible causes: strong interference or short-circuit, cut of the telephone line. CMS telephone number is not correctly programmed into the alarm system or user code is not enrolled or not correctly enrolled.
Solution: Check and confirm the telephone line is good without short-circuit and cut. Check and confirm the CMS number including communicate format and grade and user code is programmed correctly. If all above is good and problem still exist, then please check the interference of the telephone line. CMS communication is data communicate and strong interference may lead to communication interruption.

Conclusion: the -d new technology alarm control panel has voice, LCD menu, graphic prompt and low battery alert. So, alarm system troubleshooting is easy and the system has self-check maintenance program. So, alarm system is not coded and easy to operate than before.
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