1
3
Ionizer
Series
IZS31
Determining the Model and Settings 1 / Sensing DC Mode
9) Alarm
Alarm item
Description
Corrective actions
High voltage irregularity
Gives notification of the occurrence of an abnormal current,
such as high-voltage leakage. The ionizer stops discharging,
turns on the HV ALARM display, and outputs a fault signal.
Turn off the power, solve the problem, then turn the power
on again. Alternatively, turn the discharge stop signal off,
then on.
Sensor irregularity
Gi
ves notification that the feedback sensor is unable to
operate
normally. The ionizer turns on the SNSR ALARM
display and outputs a fault signal.
Turn off the power, solve the problem, then turn the power
on again. Alternatively, turn the discharge stop signal off,
then on.
CPU irregularity
Gives notification of the occurrence of a failure in the CPU
due to noise, etc. All of the LED displays blink and a fault
signal is output.
Turn off the power, solve the problem, then turn the power
on again. Alternatively, turn the discharge stop signal off,
then on.
Electrode needle
maintenance
Gi
ves notification that electrode needle maintenance is
necessary.
The NDL CHECK ALARM display comes on and
a maintenance output signal is output.
Turn off the power, clean the electrode needles, and turn
the power on again.
10) Timing chart
Timing chart during normal operation
Electric charge of workpiece
30 V
0 V
Power supply 24 VDC
Discharge
stop signal
Static electricity removal
completion signal
Sensor
monitor output
Display of electric charge
(ION LED display)
Input
Input
Output
Output
LED
ON
OFF
ON (Operation permitted)
OFF
ON (Static electricity
OFF removal in progress)
ON (Output)
OFF
ON (Display)
OFF
Timing chart when electrode needle dirt is detected.
Power supply 24 VDC Input
ON
OFF
Discharge
stop signal
Input
ON (Operation permitted)
OFF
ON (Static electricity
(Electrode needle stain is being detected)
Static electricity removal
completion signal
Output
OFF removal in progress) 2 s
Maintenance start
signal
Maintenance output
signal
Maintenance display
(NDL CHECK ALARM)
Input
Output
LED
ON (SW ON)
OFF
ON (SW ON)
OFF
ON (Display)
OFF
Over 100 ms
Blinking
: Either ON or OFF depending on the situation.
· A signal indicating static electricity removal completion is output when the detection of electrode needle dirt is in progress.
Caution
Ions are emitted from the ionizer to detect electrode needle dirt and the workpiece may therefore be electrostatically charged. Perform this detection
procedure
in the absence of workpieces.