LC-Series Controller: 1-4 Channel
ENMET
Manual Revision Date – June 13, 2017
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Manual Part No. – 80003-050
5.0 Operation
When a preset alarm point is reached, visual and/or audio alarms are activated. The backlit graphics display automatically displays the
channel in alarm and an alarm level Led(s) are activated on the control panel. The LC-8 is factory set to maintain these alarms until
they are acknowledged.
5.1 LC-Series Microcontroller Module
Situated within the LC Control Unit front panel is the Microcontroller Module. This module communicates with all Input channels
connected to the system PCB.
The Microcontroller Module provides a user interface in the form of a back lit graphics display and a four-button multifunction
keypad.
Three LED indications are provided directly by the Microcontroller Module and these are visible via MCU front panel:
Green LED for power.
Red LED indication of Alarm level 1.
Red LED indication of Alarm level 2
Red LED indication of alarm level 3.
Yellow LED indication of fault condition.
An Audible signal is also provided by a sounder mounted within Microcontroller module. This provides a local audible tone during
alarm or conditions.
The Microcontroller Module also provides the user with many configuration and interrogation facilities via the LCD and keypad.
These facilities include:
Sensor Configuration.
Allows adjustment of Sensor type and range (e.g. Flammable 100%LEL).
Calibration of the system.
This allows each channel to be calibrated independently. The sensor zero point and span can both be set via this function.
Calibration of the retransmitted output for each channel.
Calibration of the channel power supply.
Input Module Relay Configuration.
Each Input Module contains two relays for alarm levels 1 and 2. The alarm levels can be individually set to be either rising
or falling.
Fault relay.
All relays can be configured normally energized or de-energized as required. Latching and non-latching functions can also
be selected.
The microcontroller module contains all of the software required to communicate with up to four detecting channels. The software
is common to all LC Series Control Units.
