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Before staring Installation Operation Specifications
● LED display at warning occurrence
● Input channel state display (CHSTS)
LED state display Warning occurrence state
When “[Warning group2] alert occurs,
all LEDs repeat 0.5 second cycle blinking
1. System Data error
2.Calibration Data error
3. Input circuit error
4. EEPROM error
When “[Warning group1] alert occurs,
power (PWR) LED repeats 0.5 second cycle
blinking
1. Auto tuning is not terminated within 24 hours
2. Standard contact point correction (RJC) error
3. Within ±5% of input range, OVER
4. Input sensor error (BURN-OUT)
Power (PWER), communication (COM), event
(EV) LED repeat 0.5 second cycle blinking
If communication is disconnected by exceeding RS485
communication sustaining time
CHSTS Name Description
Warning
group
Bit 16 SYD System Data error [32768]
[Warning
group 2]
Bit 15 CALIB Calibration Data error [16384]
Bit 14 ADC Input circuit error [8192]
Bit 13 EEPROM EEPROM error [4096]
Bit 12 ATE Auto tuning does not terminate within 24 hours[2048]
[Warning
group 1]
Bit 11 RJC Standard contact point correction (RJC) error [1024]
Bit 10 OVER Within ±5% of input range, OVER [512]
Bit 9 B.OUT Input sensor error (BURN-OUT) [256]
Bit 4~8 - Not used -
Bit 3 AT Indicate auto tuning is operating [4] -
Bit 2 MONIT
Control run does not work, display event occurring input channel state [2]
-
Bit 1 Run Display control run and event occurring input channel state [1] -
※ For warning group, refer to input channel state display (CHSTS)
Input channel state displays in BIT MAP at CHSTS parameter.
It is comprised of 16 bit, high 9~16 bit indicates “warning state”, and 1~3 bit “run sate”, and bit is set
to “1” when reaching corresponding state. OR run is performed if several warnings occur.
※ If Run state and B.OUT warning occurrence, CHSTS parameter is set to “257.”
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