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5.1.1 sTATUs INDICATOR LED
Combinations of the three front LEDs (LD1, LD2 and LD3) indicates the transmitter's operating status by different blinking
patterns. The patterns depend on the configuration modes, DIP SW configuration and PC configuration.
Examples are shown below.
LED COLOR
R
Red
A
Amber
G
Green
■ NORMAL OPERATION (RUN) MODE
Combination of the LEDs and their blinking patterns indicate normal or abnormal operation of the unit, and are useful to
identify error modes.
• Normal operation (RUN) mode
DIP SW CONFIGURATION
• Error mode
ERROR
Output saturated
Burnout
DIP SW error
System error
PATTERN
ON
Blink
OFF
PC CONFIGURATION
DIP SW CONFIGURATION
The output is below -15% or above +115%. Check the setting and input.
The sensor or the input wiring is disconnected. Check the sensor and wiring.
DIP SW configuration is inappropriate. Check the SW settings.
Indicates the CPU's communication error.
PC CONFIGURATION
M3LU2 OPERATING MANUAL EM-2653-B Rev.0
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