SharpEye 20/20MPI, User And Maintenance Manual

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SharpEye
TM
IR3 Flame Detector User Guide
26 Output Signals
The LEDs are described in Table 5.
Table 5: 20/20MPI Status
Detector Status LED color LED mode
Fault, BIT Fault Yellow 4Hz flashing
Normal Green 1Hz flashing
Warning Red 2Hz flashing
Alarm Red Constant
4.2 Output Signals
The detector controls the following outputs:
 Model 20/20MPI-R:
 Alarm Relay
 Fault Relay
 RS-485
 Model 20/20MPI-M:
 0–20mA Stepped Source Configuration
 RS-485
The detector can be in one of the following states:
Table 6: 20/20MPI Output Signals
Detector Status Description
Normal The detector is functioning normally.
BIT The detector performs a Built-In-Test.
Warning Fire detected – warning alarm (pre-alarm) state
Alarm Fire detected – fire alarm state
Latched Alarm
(Optional) The alarm outputs are latched due to the detection of a
fire that has already been extinguished.
BIT Fault A fault is detected during BIT sequence. The detector
will continue to detect fire if the alarm conditions occur.
Fault A fault is detected when the power supply is too low or
during a software fault.
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