KEYENCE SJ-F300 Series - Manual (Page 5)

4
2CONNECTION AND INSTALLATION
2-1 Before Installation
Before you install this product, examine carefully the distance between the Static Elimination Blower
Unit and the target object and the time required for static elimination.
About Static Elimination Performance
The following shows a typical example where static is eliminated from an aluminum plate (20 pF)
150 mm x 150 mm square charged to +1000 V by this product.
The blow rate of the blower is set at maximum (FAST).
■ Static elimination area
The following graphs show the relationship between the time required for eliminating static from a target
object charged from +1000 V to +100 V and the distance from the charged object up to the Static
Elimination Blower Unit.
■ Static elimination time
The following graphs show the relationship between the time required for eliminating static at the
maximum blow rate from a target object charged at +1000 V positioned 300 mm apart from the Static
Elimination Blower Unit and the charged level.
200 400 800 1000 1200 1400 1600mm 600
600mm
600mm
0
1s 2s 3s 4s 5s
SJ-F030
200 400 800 1000 1200 1400 1600mm 600
600mm
600mm
0
1s 3s 4s 5s
SJ-F035
2s
0 1 2 3 4
1
0.8
0.6
0.4
0.2
0
-0.2
Time required for static elimination (sec)
Charged level (kV)
SJ-F030
0 1 2 3 4
1
0.8
0.6
0.4
0.2
0
-0.2
Time required for static elimination (sec)
Charged level (kV)
SJ-F035
2-1 Before Installation
■ Appropriate static elimination method
Pay attention to the following points to ensure that static
elimination is performed appropriately.
Static elimination cannot be performed accurately at
locations where the target object is touching a metallic
body (earthed body).
Eliminate static from the target body at locations where it is
not directly touching metallic bodies (earthed body).
Static will be eliminated from only the surface of the
insulated body (film, sheet, etc.) that is facing the Static
Elimination Blower Unit.
When eliminating static from both sides of a target body,
install two Static Elimination Blower Units as one unit must
be installed on either side of the target body.
Install the Static Elimination Blower Unit so that it can be easily accessed, for
example, for replacement of parts and cleaning.
Installation Precautions
■ Installation site
Refer to the following diagram when installing the SJ-F300 Series.
• Install the Static Elimination Blower Unit away from the wall or surrounding objects.
• Install the Static Elimination Blower Unit so that the Electrode Unit can be removed for replacement.
■ Interference
The Static Elimination Blower Unit may not function properly if two or more units are used close to each other.
In such an installation, refer to the following diagram and maintain the indicated distance between units.
START /STOP BALANCE ION FAN COND IONLEVEL
OK
OK
NG
Film, sheet or other electrically charged object
Metal roller
Note:
50 mm or more
50 mm or more
START /STOP
START /STOP
15 mm or more
2-2 Connection and Installation
Installing the SJ-F300 Series
Install the SJ-F300 Series at locations where static electricity is generated or is likely to be generated.
When installing the Static Elimination Blower Unit separately from the Controller Unit, refer to
"
■ Installing the Static Elimination Blower Unit" below.
■ Installing the Static Elimination Blower Unit
There are two ways of installing the Static Elimination Blower Unit, with or without the mounting fixtures.
Each installation method is shown below.
● When using mounting fixture A (OP-78476):
1
Tap M4 screw holes where the Static Elimination Blower Unit is to be installed, and fasten
mounting fixture A (OP-78476) with M4 screws.
You can adjust the horizontal angle of the Static Elimination Blower Unit by using the semi-circled
cutout holes on the base of mounting fixture A.
M4 screws for fastening mounting fixture A at the installation location must be provided separately.
2
Install the Static Elimination Blower Unit on mounting fixture A.
You can adjust the vertical angle of the Static Elimination Blower Unit by using the semi-circled cutout
holes on the base of mounting fixture A.
M4 screws for fastening mounting fixture A to the Static Elimination Blower Unit are provided with
mounting fixture A.
When using the accessory mounting fixture, also fasten it with screws as shown above.
M4 screws
START /STOP BALANCE ION FAN
COND IONLEV EL
M4 screws
M4 screws
Tip
2-2 Connection and Installation
● When using mounting fixture B (OP-78477):
1
Install mounting fixture B (OP-78477) on the Static Elimination Blower Unit.
M4 screws for fastening the Static Elimination Blower Unit to mounting fixture B are provided with
mounting fixture B.
2
Tap M4 screw holes where the Static Elimination Blower Unit is to be installed, and fasten
mounting fixture B (OP-78477) with M4 screws.
M4 screws for fastening mounting fixture B to the installation location must be provided separately.
3
Loosen the screws mounted on the Static Elimination Blower Unit, and adjust the installation
angle. Then, fasten with the screws again.
● When mounting fixtures are not used:
Drill holes of diameter 4.2 mm or more at the location where the Static Elimination Blower Unit is to be
installed, and fasten with M4 screws.
M4 screws must be provided separately.
START /STOP BALANCE ION FAN
COND IONLEVEL
M4 screws
M4 screws
START /STOP
M4 screws
START /STOP
START /STOP
M4 screws
M4 screws