KEYENCE SJ-M300 - Manual (Page 5)

4
2-1 Before Installation
This section describes the static elimination performance of the SJ-M100/200 Series.
Before you install the SJ-M100/200 Series, fully calculate the distance between the Static Elimination
Head up to the target object and the time required for static elimination.
About Static Elimination Performance
■ Static elimination speed and operating distance
The SJ-R Series offers a variety of frequency settings to enable flexible static elimination according to
the location and application.
See "Frequency setting" (page 6).
The following graphs show typical examples of the relationship of static elimination speed, operating
distance, and frequency settings for the SJ-R Series. Use the graphs to select the appropriate static
elimination setting.
■ Operation time vs. operating distance
Static elmination
speed
Location
Operating
distance(mm)
Recommended
frequency (Hz)
High-speed
Low-speed
Production lines of films or sheets
(Short distance)
50–300 50, 30
Clean bench (Middle distance) 300–1000 10, 8, 5
On ceiling of clean room (Long distance) 1000–2000 3, 1
Model: SJ-M030/030C
Measurement conditions:
The time required to eliminate the static charge of the
target from ±3000 V to ±300 V is measured.
The 150 x 150 mm plate monitor (20pF) is used. Measurement conditions:
The time required to eliminate the static charge of the
target from ±5000 V to ±500 V is measured.
The 150 x 150 mm plate monitor (20pF) is used.
Under the downward air flow of 0.3 m/sec.
Model: SJ-M070/070C
50Hz
30Hz 25
20
15
10
5
30
Char
g ed level (V)
Time (secs)
0
0 50 100 150 200 250 300
8Hz
5Hz
1Hz 50
60
40
30
20
10
0
0 400 600 800 1000 1200 1400 1600 200
Char
g ed level (V)
Time (secs)
0
2
4
6
8
10
12
14
16
18
20
0 50 100 150 200 250 300
Operating distance (mm)
Operatin
g time (sec.)
50Hz
30Hz
0
5
10
15
20
25
30
35
0 200 400 600 800 1000 1200 1400 1600
Operating distance (mm)
Operatin
g
time (sec.)
8Hz
5Hz
1Hz
2-1 Before Installation
Measurement conditions:
The time required to eliminate the static charge of the
target from ±3000 V to ±300 V is measured.
The 150 x 150 mm plate monitor (20pF) is used.
The downward air flow of 0 m/sec
3 NL/min (1 electrode) air purge Measurement conditions:
The time required to eliminate the static charge of the
target from ±5000 V to ±500 V is measured.
The 150 x 150 mm plate monitor (20pF) is used.
Under the downward air flow of 0.3 m/sec.
3 NL/min (1 electrode) air purge
Model: SJ-M030G
Model: SJ-M070G
50Hz
30Hz
4
3
2
0
0
1
50 100 150 200 250 300
3.5
2.5
1.5
0.5
Operatin
g time (sec.)
Operating distance (mm)
8Hz
5Hz
1Hz
25
30
20
15
10
5
0
0 400 600 800 1000 1200 1400 1600 200
Char
g
ed level (V)
Time (secs)
0
0.5
1
1.5
2
2.5
3
3.5
4
0 50 100 150 200 250 300
Operating distance (mm)
Operatin
g time (sec.)
50Hz
30Hz
0
2
4
6
8
10
12
14
16
0 200 400 600 800 1000 1200 1400 1600
Operating distance (mm)
Operatin
g time (sec.)
8Hz
5Hz
1Hz
Measurement conditions:
The time required to eliminate the static charge of the
target from ±3000 V to ±300 V is measured.
The 150 x 150 mm plate monitor (20pF) is used.
The downward air flow of 0 m/sec
1 NL/min (1 electrode) air purge Measurement conditions:
The time required to eliminate the static charge of the
target from ±5000 V to ±500 V is measured.
The 150 x 150 mm plate monitor (20pF) is used.
Under the downward air flow of 0.3 m/sec.
1 NL/min (1 electrode) air purge
Model: SJ-M030V/030VC
Model: SJ-M070V/070VC
50Hz
30Hz
20
18
16
14
12
10
8
6
4
2
0
0 50 100 150 200 250 300
Char
g
ed le
v el (V)
Time (secs)
8Hz
5Hz
1Hz
50
60
40
30
20
10
0
0 400 600 800 1000 1200 1400 1600 200
Char
g ed level (V)
Time (secs)
0
2
4
6
8
10
12
14
16
18
20
0 50 100 150 200 250 300
Operating distance (mm)
Operatin
g time (sec.)
50Hz
30Hz
0
10
20
30
40
50
60
0 200 400 600 800 1000 1200 1400 1600
Operating distance (mm)
Operatin
g
time (sec.)
8Hz
5Hz
1Hz
2-1 Before Installation
■ Operating area and operation time
The following graphs show typical examples of the relationship between the time required to eliminate
the target's static charge and the operating distance from the target to the static elimination bar.
Use the graphs to select the appropriate static elimination setting.
Model: SJ-M030/030C
At the time of frequency 50 Hz
Model: SJ-M070/070C
At the time of frequency 50 Hz
Measurement conditions:
The time required to eliminate the static charge of the
target from ±3000 V to ±300 V is measured.
The downward air flow: 0 m/sec
The air purge: 0
NL/min
Measurement conditions:
The time required to eliminate the static charge of the
target from ±3000 V to ±300 V is measured.
The downward air flow: 0 m/sec
The air purge: 0
NL/min
At the time of frequency 8 Hz At the time of frequency 8 Hz
Measurement conditions:
The time required to eliminate the static charge of the
target from ±5000 V to ±500 V is measured.
The downward air flow: 0.3 m/sec
The air purge: 0
NL/min
Measurement conditions:
The time required to eliminate the static charge of the
target from ±5000 V to ±500 V is measured.
The downward air flow: 0.3 m/sec
The air purge: 0
NL/min
At the time of frequency 1 Hz At the time of frequency 1 Hz
Measurement conditions:
The time required to eliminate the static charge of the
target from ±5000 V to ±500 V is measured.
The downward air flow: 0.3 m/sec
The air purge: 0
NL/min
Measurement conditions:
The time required to eliminate the static charge of the
target from ±5000 V to ±500 V is measured.
The downward air flow: 0.3 m/sec
The air purge: 0
NL/min
50 100 150
50
100
150mm
50 100 150mm
0.4sec
0.6sec
0.8sec
1.2sec
1.5sec
50 100 150
50
100
150mm
50 100 150mm
0.4sec
0.6sec
0.8sec
1.2sec
1.5sec
150 300 450
300
600
900mm
150 300 450mm
5sec
10sec
15sec
30sec
150 300 450
300
600
900mm
150 300 450mm
5sec
10sec
15sec
20sec
300 450 600 150 450 300 150 600mm
300
600
900
1200
1500mm
4sec
20sec
30sec
300 450 600 150 450 300 150 600mm
300
600
900
1200
1500mm
4sec
10sec
20sec
2-1 Before Installation
Model: SJ-M030G
At the time of frequency 50 Hz
Model: SJ-M070G
At the time of frequency 50 Hz
Measurement conditions:
The time required to eliminate the static charge of the
target from ±3000 V to ±300 V is measured.
The downward air flow: 0 m/sec
The air purge:
3 NL/min (1 electrode)
Measurement conditions:
The time required to eliminate the static charge of the
target from ±3000 V to ±300 V is measured.
The downward air flow: 0 m/sec
The air purge:
3 NL/min (1 electrode)
At the time of frequency 8 Hz At the time of frequency 8 Hz
Measurement conditions:
The time required to eliminate the static charge of the
target from ±5000 V to ±500 V is measured.
The downward air flow: 0.3 m/sec
The air purge:
3 NL/min (1 electrode)
Measurement conditions:
The time required to eliminate the static charge of the
target from ±5000 V to ±500 V is measured.
The downward air flow: 0.3 m/sec
The air purge:
3 NL/min (1 electrode)
At the time of frequency 1 Hz At the time of frequency 1 Hz
Measurement conditions:
The time required to eliminate the static charge of the
target from ±5000 V to ±500 V is measured.
The downward air flow: 0.3 m/sec
The air purge:
3 NL/min (1 electrode)
Measurement conditions:
The time required to eliminate the static charge of the
target from ±5000 V to ±500 V is measured.
The downward air flow: 0.3 m/sec
The air purge:
3 NL/min (1 electrode)
50 100 150
50
100
150mm
50 100 150mm
0.4sec
0.8sec
0.6sec
1.0sec
50 100 150
50
100
150mm
50 100 150mm
0.4sec
0.6sec
0.8sec
50 100 150
50
100
150mm
50 100 150mm
5sec
15sec
10sec
50 100 150
50
100
150mm
50 100 150mm
5sec
15sec
10sec
300 450 600 150 450 300 150 600mm
300
600
900
1200
1500mm
20sec
10sec
6sec
4sec
300 450 600 150 450 300 150 600mm
300
600
900
1200
1500mm
4sec
10sec
20sec
6sec