Control Unit NMS1001-L is a controlling device to monitor the temperature change of sensor cable and connected to mainframe of intelligent fire alarm control panel.
NMS1001-L performs continuous monitoring over fire alarm and open circuit of monitored area as well as distance from fire alarm position. These alarming signals are shown on the LCD and indicators of NMS1001-L.
Since fire alarm has locking function, NMS1001-L must be disconnected to power and reset after ALARM. While fault function could automatically reset, it means that after the clearing fault, the fault signal of NMS1001-L is automatically cleared.
♦ Box cover: Made of plastict with a high performance of chemical resistance, aging resistance and impact resistance;
♦ IP rating: IP66
♦ With LCD, Various alarming information could be shown
♦ The detector has high ability of interruption resistance adopting fine grounding measurement, isolation test and software interruption resistance technique. It is able to apply in places with high electromagnetic field interruption.
2. Wiring Introduction
Schematic Diagram for Wiring Terminal of Linear Detector Interface :
(1)DL1 and DL2: connect to DC 24V power without polar connection.
(2)1 2: connect to Linear heat detection cable,Wiring method is as follows:
|Terminal label||Linear heat detection cable wiring|
(3)COM1 NO1: pre-alarm/fault/normal compound output of terminal contacting point
(4)EOL1: access point 1 of terminal impedance (matched with input module and corresponds with COM1 NO1)
(5)COM2 NO2 NC2: fault output
3. Application and Operation of NMS1001-L Control Unit and Locator
Switch on for Control Unit after finishing system wiring and installation. Green indicator of Control Unit flashes. Control Unit enters supply initialization status. When the green indicator constantly lights, Control Unit enters normal monitoring status.
(1) Normal monitoring screen
The indicator display of linear detector interface under normal operation is as following screen:
(2)Fire alarm interface
The indicator display of Control Unit under fire alarm is as following screen:
Fire Alar m !
Locati on: 0540m
The indication “Location: XXXXm” under fire alarm status is the distance from fire location to Control Unit
4.Matching and connecting for NMS1001-L system:
The consumers can choose other electrical equipment to connect with NMS1001, making good preparation as followed:
Analyzing the protection capability of the equipment (input terminal). For during the operating, the LHD may couple the signal of the protected device (power cable) causing voltage surge or current impact to the input terminal of the connecting equipment.
Analyzing the anti-EMI capability of the equipment (input terminal). Because long-length use of LHD during the operation, there may be power frequency or radio frequency from LHD itself interfering the signal.