KEYENCE SJ-M201 - Manual (Page 3)

3
1-1 Features of the SJ-M Series
■ Alarm output functions
● Alarm output functions
An indicator blinks and an alarm signal is output, for example, when internal circuits are damaged or
abnormal discharging occurs. When an alarm signal is output, generation of ions is forcibly stopped.
● Ion level alarm output function
An indicator lights and an alarm signal is output when the level of generated ions drops due to a dirty
electrode probe, for example.
● Condition alarm output function
An indicator lights and an alarm signal is output when static elimination performance is impaired.
"Alarm Output Functions" (page 10)
■ Abnormal discharge detection function
Abnormal discharge caused by condensation on the electrode probe tip or adhesion of debris is
detected. When abnormal discharge is detected, ion generation is forcibly stopped to prevent
malfunction at an early stage.
"Abnormal Discharge Detection Function" (page 10)
■ Ion balance adjustment function
The ion balance zero point can be fine-tuned.
"Ion Balance Adjustment Function" (page 9)
■ Static elimination stop function
Static elimination only can be turned ON/OFF with the device still powered. This is achieved by
shorting the 0V terminal with the static elimination stop input terminal on the Controller Unit (I/O
terminal section) or by holding down the two ion balance adjustment keys simultaneously for about
three seconds.
"Static Elimination Stop Function" (page 10)
■ Air purge function
Dirt can be prevented from sticking to the electrode probe on the SJ-M021(G) by attaching a tube to
the air duct and supplying clean, dry air. This also extends the static elimination range.
"Air Purge Function" (page 10)
■ High-temperature static elimination
The High Temperature global setting allows static to be eliminated in hot environments.
(ambient operating temperature: SJ-M021(G), 0 to +80°C)
"High temperature use setting" (page 8)
1-2 Checking the Contents of the Package
The package contains the following components and accessories. Before you start using the SJ-M
Series, make sure that the package contains everything that it is supposed to contain. A Replacement
Electrode Unit and other accessories are available as options.
"List of Options" (page 16)
Package Contents
Options
Controller Unit (SJ-M201) Static Elimination Head (SJ-M021)
Instruction Manual
WARNING labels (Japanese, German, French, Italian and Chinese
(Simplified)) *
* Use as necessary.
SJ-M021 Mounting Fixture x 1
Earth lead
Replacement Electrode Unit for SJ-M021
(OP-51607) Discharge Prevention Cap
(OP-75354)
Replacement Electrode Unit for SJ-M021G
(OP-75351)
PFA tube 0.5 m
(OP-75350)
AC Adapter SJ-U2
* For details on the AC cable, contact your local
Keyence office.
1-3 Names and Functions of Parts
This section describes the names and functions of parts in the SJ-M Series.
Static Elimination Head
● SJ-M021(G)
(1) (2)
(3)
(4)
(5)
(1) Electrode probe
Ion charge is emitted from the tip of this probe.
(2) Nozzle mounting fixture
Used for installing a special nozzle.
(3) Allowable mounting fixture range
The unit is fixed in place in this area with the
mounting fixture (provided).
(4) High-voltage cable
Ambient operating temperature: 0 to +80°C
Minimum bending radius 50 mm
(5) Air Input Unit
Supplies clean, dry air.
1-3 Names and Functions of Parts
Controller Unit (operation/display section)
Enlarged view of display section Terminal plate cover
Lights when the charged level of the target object is
displayed.
Lights when the ion emission level is being displayed.
Indicates the charged level of the target object.
Also, indicates the ion emission level.
Used for adjusting the ion balance and for selecting setting
items.
Lights when an alarm occurs.
Lights when the ion emission level has fallen below the set
value due to dirt or wear of the electrode probe.
Lights when the charged level of the target object is high
and static cannot be completely eliminated.
Used for determining setting items and for switching the
display.
Ion balance
indicator
Ion level
indicator
Ion monitor
keys
key
Alarm indicator
Ion level alarm indicator
Condition alarm indicator
Ion balance indicator
Ion level indicator
Ion monitor
keys
Alarm indicator
Ion level alarm indicator
Condition alarm indicator
key
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
SJ-M201