I.c.c. setting, 1 about maintenance, About maintenance – KEYENCE SJ-M400 User Manual
Page 9: 2 performing maintenance on the electrode probe, Performing maintenance on the electrode probe
9
3-4
Other Functions
■ Relationship between installation distance and static elimination speed
according to air flow rate
The relationship between static
elimination speed and installation
distance between the Static
Elimination Head varies according to
the air flow rate.
Select an air supply flow rate
referring to the typical example on
the right.
Measurement conditions:
Static elimination time in ±1000V to
±100V range
150 mm x 150 mm plate monitor (20 pF) used
Take soundproofing measures such as wearing earplugs when using the air
purge function.
■ Relationship between installation distance and wind speed according to air
flow rate
The relationship between wind speed and static elimination head installation distance varies according
to the air flow rate.
Adjust the air supply flow rate referring to the following figures.
0
1
2
3
4
5
0
100
200
No air
50
150
250
300
Installation distance (mm)
Static elimination speed (sec)
Weak air (20L/min)
Moderate air (60L/min)
Strong air (180L/min)
WARNING
Air flow rate 20 N /min
400 mm
300
200
100
10 m/s
1 m/s
2 m/s
5 m/s
75
50
25
0
25
50
75
mm
Air flow rate 60 N /min
200
400
600
800
1000 mm
10 m/s
1 m/s
2 m/s
5 m/s
75
50
25
0
25
50
75
mm
Air flow rate 180 N /min
200
400
600
800
1000 mm
10 m/s
1 m/s
1 m/s
2 m/s
5 m/s
75
100
50
25
0
25
50
75
100
mm
3-4
Other Functions
I.C.C. Setting
The I.C.C. (Ion Current Control) can be turned on and off.
Turning off the I.C.C. allows the ion balance adjustment function to generate positive and negative ions
at a fixed ratio.
Either of them lit
Blink alternately
Hold down
for at least
1 second
Hold down for at
least 1 second
simultaneously
Change
Change
Change
Blink
Blink
Change the 3rd LED from the top in the Select mode.
Press for a short time
: advances to the Setup mode
of the selected item
Hold down for at least 1 second : exits the Select mode and
returns to the Run mode
: moves the cursor up and
down
On the ion monitor, the currently selected items are lit in green and the
items whose default have been changed are lit in red.
I.C.C. is set at ON by default setting.
Items that satisfy both of these conditions blink in red and green
alternately.
Advance to the I.C.C. ON/OFF setting from the Select mode in page 7,
and select either of the followings.
(1) I.C.C ON (green) (Default) ..........................................I.C.C. ON
(2) I.C.C. OFF (red) ..........................................................I.C.C. OFF
Select an appropriate nozzle according to the
head. Incorrect setting may cause accidents or
malfunction. When the I.C.C. ON/OFF setting is
selected, the ion level alarm will not be output
correctly.
Important
4-1
About Maintenance
Maintenance must be performed periodically to ensure that the static elimination performance of the
SJ-M Series is fully demonstrated. Maintenance personnel should thoroughly read the descriptions
under
"Safety Precautions" (page 1), and perform maintenance paying attention to the following
points.
About Maintenance
• The SJ-M Series uses high voltage. Before starting maintenance, be sure to
turn the power OFF. Failure to do so might result in electric shock or
malfunction.
• Do not directly touch the electrode
probe. Take care not to touch these
probes even if the power is turned OFF.
Directly touching these probes may
cause personal injury.
When the SJ-M Series is used for a long period of time, the electrode probe becomes dirty due to the
adhesion of dust and dirt.
If the ion level alarm indicator lights, clean the electrode probe. If the electrode probe is used in a dirty
or dusty state, static elimination performance can no longer be fully demonstrated, resulting in
accidents or malfunction. We recommend periodically cleaning the electrode probe (as a guideline,
once every two weeks in a regular operating environment though this depends on the installation
conditions).
If cleaning the electrode probe does not improve the static elimination performance, or the ion level
alarm indicator frequently lights, replace the electrode probe.
WARNING
4-2
Performing Maintenance on the Electrode probe
When the SJ-M Series is used for a long period of time, the electrode probe becomes dirty due to the
adhesion of dust and dirt.
If the electrode probe is used in a dirty or dusty state, static elimination performance can no longer be
fully demonstrated, resulting in accidents or malfunction. Be sure to periodically perform maintenance
on the electrode probe.
Performing Maintenance on the Electrode probe
• Before removing the Electrode Unit, turn the SJ-M Series OFF.
• Do not directly touch the electrode probe with your hands. Doing so may
cause personal injury. Pay attention to this when performing maintenance
on the electrode probe.
■ How to clean the electrode probe
Clean the electrode probe gently with a cotton wool bud
moistened with alcohol.
If the electrode probe is difficult to reach, remove the probe from the head and clean
it.
■ Replacing the electrode probe
If cleaning the electrode probe does not improve static elimination performance, or if the ion level alarm
indicator ligts frequently, replace the electrode probe.
An optional tungsten electrode probe (black) (OP-84383) is available.
●
How to remove and install the electrode probe
Hold the plastic section of the electrode probe and turn it
counterclockwise to remove it. Then, turn it clockwise to
install it.
WARNING
Note