Series
IZS31
8
Functions
1. Operation mode
There are 3 different operation modes (Sensing DC mode / Pulse DC mode / DC mode) for series IZS31, these can be selected based upon the
application and operating condition.
(1) Sensing DC mode
The discharge time is reduced by detecting the workpiece’s charge condition with a feedback sensor which feeds the data back to the
ionizer and causes ions with the polarity best suited for static electricity removal to be emitted. The static electricity removal
completion signal turns off when the workpiece’s electrostatic potential falls within
±
30 V.
Note)
This mode is suited for removing static electricity from heavily charged workpieces.
Either “Energy Saving Mode” or “Continuous Static Electricity Removal Mode” can be selected as the operation method depending on
the ionizer’s operation mode after the completion of static electricity removal.
Energy saving
mode
The ionizer stops discharging upon completion of static electricity removal. It resumes discharging when the workpiece’s
electrostatic potential exceeds
±
30 V.
Note)
For the removal of static electricity from conductive workpieces, “Energy Saving Run” is recommended.
Continuous
static electricity
removal mode
Even after the completion of static electricity removal, this method continues to remove static electricity using DC pulses while
controlling the ion balance, so that the workpiece’s electrostatic potential falls within
±
30 V.
For the removal of static electricity from nonconductive workpieces, “Continuous Static Electricity Removal mode” is recommended.
Note) When the feedback sensor is installed at a height of 25 mm.
(2) Pulse DC mode
Alternatively emits positive and negative ions.
When an autobalance sensor is used, the ionizer automatically adjusts the ion balance to within
±
30 V.
If the ion balance exceeds
±
30 V due to electrode needle contamination, the ionizer outputs a maintenance output signal.
This mode is suited for removing spatial static electricity or preventing workpieces from becoming electrostatically charged.
When an autobalance sensor is used.
Either “Manual Operation” or “Automatic Operation” can be selected as the operation method depending on the method of ion
balance adjustment.
Manual operation
When a maintenance start signal is input or the ionizer is turned on, this method adjusts the ion balance. For the removal of static
electricity from moving workpieces, “Manual Operation” is recommended. Start system operation after the completion of ion
balance adjustment.
Automatic operation
This method continuously adjusts the ion balance. For the removal of static electricity from stationary workpieces or the removal
of spatial static electricity, “Automatic Operation” is recommended.
When an autobalance sensor is not used.
Use the ion balance adjustment trimmer to adjust the ion balance. This requires the separate use of a measuring instrument to
verify the ion balance.
(3) DC mode
Continuously emits positive and negative ions. Parts other than the work piece need to be appropriately grounded to prevent then
from being charged. This mode cannot emit both positive and negative ions at the same time.
