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9. 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.
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.
Sensor failure Notifies that the auto balance sensor doesn’t
work properly. SNSR ALARM lights up, and the
signal for sensor 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.
CPU failure Notifies that CPU fails due to noise. All LEDs
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.
Electrode needle
maintenance
Notifies when the maintenance of the electrode
needle is necessary. NDL CHECK ALARM lights
up, and the maintenance output signal is output.
Turn off the power supply and clean the
electrode needle. Then apply the power supply.
10. Timing chart
Timing chart with a normal operation
Timing chart when the dirt on the electrode needle is detected／adjust ion balance
（ａ）With auto balance sensor
（ｂ）W/o auto balance sensor
・The completion signal for static charge elimination is output while the dirt on the electrode needle is being detected
・Because ions are discharged from the ionizer when the electrode needle is being detected, the workpiece might be charged.
Therefore, the workpieces should not be mounted when the detection is executed.
Contamination detecting
of electrode needle
Adjust ion balance
Ionizer
operation
ON
Input
OFF
ON(Operation)
Input
OFF
ON(Discharge)
OFF
Power supply DC24V
Discharge-stop signal
State of ion discharge
① Manual operation
ON
Input
OFF
ON
Input
OFF
ON
(Contamination detecting of electrode needle / Ion balance is being adjusted.)
Output
OFF
ON
(SW ON）
Input
OFF
ON
(SW ON）
Output
OFF
ON
(Lighting）
Blink
LED
OFF
Power supply DC24V
Discharge-stop signal
Maintenance indication
(NDL CHECK ALARM)
Completion signal for
Static charge elimination
Maintenance
Start-up signal
Maintenance
Output signal
2s
100ms or more
② Auto o
p
eration
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
LED
OFF
(NDL CHECK ALARM)
100ms or more
2s
Power supply DC24V
Discharge-stop signal
Completion signal for
Static charge elimination
Maintenance
Start-up signal
Maintenance
Output signal
Maintenance indication
Input
Output
Output
Input
Input
ON
Input
OFF
ON
Input
OFF
ON
Output
OFF
ON
（SW ON）
Input
OFF
ON
（SW ON）
Output
OFF
ON
（Lighting）
Blink
LED
OFF
(NDL CHECK ALARM)
ON and OFF status will be changed depending on the situation.
100ms or more
2s
行）
Maintenance indication
Maintenance
Output signal
Maintenance
Start-up signal
Completion signal for
Static charge elimination
Discharge-stop signal
Power supply DC24V
(Operation)
Detection is executed when the
maintenance level selecting switch,
H, M or L is selected
.
Contamination detecting
of electrode needle
Adjust ion balance
Ionizer
operation
Detection is executed when the
maintenance level selecting switch,
H, M or L is selected.
(Contamination detecting of electrode needle)
(Operation)
Contamination detecting
of electrode needle
Adjust ion balance
Ionizer
operation
Detection is executed when the
maintenance level selecting switch,
H, M or L is selected
.
(Contamination detecting of electrode needle)
(SW ON）
（SW ON）
(Lighting）
(Operation)
Blink