KEYENCE SJ-M200 - Manual (Page 12)

11
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.
■ How to replace the electrode probe
Note: If cleaning the electrode probe does not improve static elimination performance, or the ion level
alarm indicator frequently lights, a probable cause is that the electrode probe has reached the end of its
service life.
Electrode replacement units for SJ-M020 (OP-51607) and for SJ-M020G (OP-75351) are available in
options.
● How to remove and install the electrode probe
The electrode probe can be removed by holding the tip of
the electrode probe and turning counterclockwise, and
installed by turning clockwise.
WARNING
Rotate while
holding this area.
5-1 Timing Charts
This section provides timing charts for SJ-M Series.
■ Ion generation control timing chart
Indicator states when static elimination is OFF
Normal static elimination OFF
input (terminal)>
The center LED of the ion monitor blinks (red).
■ Input response timing chart
Normally ON Normally OFF Normally ON Forced OFF Normally ON Normally OFF Normally ON
Static elimination
stop input (terminal) ON
OFF
Static elimination
stop input (controller) ON
OFF
Ion emission state
Unit indicator
Emitting
No emissions
Alarm output
ON
OFF
Forced OFF Forced OFF Normally ON Normally OFF
Max. 15 ms Max. 1 s
Static elimination
stop input (unit) ON
OFF
Ion emission
state Emitting
No emissions
Normal static elimination OFF static elimination stop input (controller)>
The three center LEDs of the ion monitor
blink (red).
5-1 Timing Charts
■ Ion level alarm output timing chart
■ Condition alarm output timing chart
■ Alarm output timing chart
Power
ON
OFF
Static elimination
stop input (terminal) ON
OFF
Static elimination
stop input (controller) ON
OFF
Alarm indicator
Blinking
OFF
Alarm output (N.C.)
ON
OFF
Ion emission
Emitting
No emissions
Ion level indicator Max. 10s
Blinking
OFF
Ion level alarm
output (N.O.) ON
OFF
When the ion level alarm is output,
removing the cause of the alarm can
restore the normal state. One way of
restoring the normal state is to
perform maintenance on the electrode
probe.
For details on electrode probe
maintenance, see "Performing
Maintenance on the Electrode probe"
(
page 11).
Power
ON
OFF
Alarm indicator
Blinking
OFF
Alarm output (N.C.)
ON
OFF
Ion emission
Emitting
No emissions
Condition indicator
Blinking
OFF
Condition alarm
output (N.O.) ON
OFF
Max. 10s
Static elimination
stop input (terminal) ON
OFF
Static elimination
stop input (controller) ON
OFF
When the condition alarm is output,
removing the cause of the alarm can
restore the normal state. One way of
restoring the normal state is to
improve the installation environment.
Power
ON
OFF
Static elimination
stop input ON
OFF
Alarm indicator
Blinking
OFF
Alarm output (N.C.)
ON
OFF
Ion emission
Emitting
No emissions
Max. 10 s
When the alarm is output, the normal
state can be restored by performing
one of the two available restore
methods depending on the cause of
alarm output.
For details on how to restore the
normal state, see “During an alarm
(levels 1, 2)” (
page 14).
5-2 Specifications
This section provides the specifications of the SJ-M100/200 Series.
■ Static Elimination Head/Controller Unit
*1: Values obtained at an installation distance of 50 mm and air flow rate of 60 Nl/min (ambient operating temperature +20
to +30°C, ambient operating humidity 40 to 60% RH) (without nozzle)
*2: Values obtained at an installation distance of 50 mm and air flow rate of 20 Nl/min (ambient operating temperature +20
to +30°C, ambient operating humidity 40 to 60% RH) (without nozzle)
*3: Inquire for derating of humidity/pressure in environments exceed +35°C. Use
clean or dry air at a temperature of -20°C or less as the supply fluid. And the
air pressure is different by a model of a nozzle at least (the right chart).
*4: During regular use, supply air at a supply fluid temperature of +40°C or less.
*5: These values are for the High-pressure Cable Unit only. The ambient
operating temperature is 0 to +40°C at other parts.
*6: When the ambient temperature exceeds +40°C, perform derating according to
the following figures.
*7: As for SJ-M010, a combination with SJ-M200 is possible, too.
● Temperature/humidity derating graph
Model
Static Elimination Head SJ-M010 *7 SJ-M020/SJ-M020 (1.2M)/SJ-M020 (0.6M)/
SJ-M020G/SJ-M020G (1.2M)/SJ-M020G (0.6M)
Controller Unit SJ-M100 SJ-M200
Voltage application method Pulse AC
Applied voltage ±5.5 kV
Rated output voltage ±6 kV
Ion balance control method I.C.C. method
Static elimination time 0.5 sec. max. *1
Ion balance ±15 V or less *2
Max. air pressure 0.001 to 0.5 MPa *3
Control input
Static elimination stop
input
No-voltage input
Control output
Alarm output
NPN open collector
100 mA 40 V or less
Ion level alarm output
Condition alarm output
Rating
Power voltage 24 VDC ±10%
Current consumption 450 mA max.
Environmental
resistance
Operating
ambient
temperature Head 0 to +80°C *4, 5, 6
Controller 0 to +40°C
Operating ambient
humidity
35 to 65%RH
Weight
Static Elimination Head Approx. 600 g
Approx.
540 g
Approx.
480 g
Approx.
600 g
Approx.
540 g
Approx.
480 g
Controller Unit Approx. 300 g
Nozzle Min. air pressure
without nozzle 0.001MPa (2.6Nl/min)
SJ-ML 0.02MPa (20Nl/min)
SJ-MS/ML1 0.03MPa (20Nl/min)
SJ-MS/ML2 0.02MPa (20Nl/min)
SJ-MS/ML3 0.08MPa (50Nl/min)
SJ-MS/ML4 0.08MPa (50Nl/min)
0.6
0.5
0.4
0.3
0.2
0.1
0
0 10 20 30 40 50 60 70 80
70
60
50
40
30
20
10
40 50 60 70 80
0
Am
b ient
o
per
a
tin
g
h
u
midi
ty (% RH)
Ambient operating temperature (°C)
Max. oper
at
ing pre
ss
u
re
(M
P
a
)
Ambient operating temperature (°C)