Sierra Monitor Corporation IZS31 User Manual
21
6. LED display
POWER LED ・・・ The power supply input and the connection of the sensors are displayed.
LED name
Functions
MAIN
Lights up when the power supply is applied. (Green)
(Flashes when wrong power supply is applied. ）
(Flashes when wrong power supply is applied. ）
POWER
SNSR Goes
out.
ION LED ・・・ The discharged ion polarity is displayed.
LED name
Functions
＋
Lights on when plus ions are generated.(Orange)
OK Goes
out.
ION
－
Lights on when minus ions are generated.（Blue）
ALARM LED ・・・ Failure of the ionizer is displayed.
LED name
Functions
HV
Lights up when overcurrent is applied to the electrode needle. （Red）
SNSR Goes
out.
ALARM
NDL
CHECK
CHECK
Goes out.
7. Alarm
Type of alarm
Description
How to reset
Abnormal high voltage
Notifies when overcurrent such as high voltage
leakage occurs. The ion-discharge-output is
stopped, HV ALRM sets off and output the
signal for failure.
leakage occurs. The ion-discharge-output is
stopped, HV ALRM sets off and output the
signal for failure.
Turn off the power supply to solve the problem.
Once it’s solved, apply the power supply again.
Or turn on and off the discharge-stop signal.
Once it’s solved, apply the power supply again.
Or turn on and off the discharge-stop signal.
CPU failure
Notifies that CPU fails due to noise. All LEDs
Flashes, and the signal for CPU failure is
output.
Flashes, and the signal for CPU failure is
output.
Turn off the power supply to solve the problem.
Once it’s solved, apply the power supply again.
Or turn on and off the discharge-stop signal.
Once it’s solved, apply the power supply again.
Or turn on and off the discharge-stop signal.
8. Timing chart
Timing chart with a normal operation
ON
Input
OFF
ON
(Operation)
Input
OFF
ON
(Discharge)
OFF
Power supply DC24V
Discharge-stop signal
State of ion discharge