KEYENCE SJ-F036 - Manual (Page 3)

3
1-3 Names and Functions of Parts
■ Front view
Electrode Unit
Provided with the electrode needles. Remove the Electrode Unit before attempting maintenance and
servicing work.
Refer to "Performing Maintenance on the Electrode Needles" (page 7) for details about how to
remove the Electrode Unit.
Electrode needle
Generates ions from its tip.
Lock switch
Affixes the Electrode Unit.
Fan guard
SJ-F031: Metal
SJ-F036: Resin
■ Operation panel
START /STOP BALANCE ION FAN
COND IONLEVEL
Lock switch Operation panel
Fan guard
Electrode Unit
Electrode needle
[1] Ion level alarm indicator
Lit OFF Normal
Blinking in red Ion level alarm has occurred.
[2] Condition alarm indicator
Lit OFF Normal
Blinking in red Condition alarm has occurred.
[3] Ion balance indicator When lit, the indicator displays the ion balance.
[4] Ion level indicator When lit, the indicator displays the ion level.
[5] Blow rate indicator When lit, the indicator displays the blow rate setting value.
[6] Monitor
The monitor displays the ion balance, ion level, blow rate setting value in
seven indication levels.
Lights in red when the Static Elimination Blower needs cleaning.
[7] START/STOP key Used for switching start/stop.
[8] ENTER key Used for selecting various setups.
[9] UP/DOWN key Used for selecting and adjusting various setups.
[1]
[6] [9]
[2] [3] [4] [5]
[7] [8]
1-3 Names and Functions of Parts
■ Rear view
■ I/O cable
■ Input circuit diagram
*Static elimination stop input
■ Output circuit diagram
Open collector output
*Alarm output, Condition/Ion level alarm output
DCI
N
Power supply connector I/O cable connector
Ground terminal
* The blue and orange wires are connected internally.
Wire color Description
Brown DC power supply (Rating: 24 V)
Blue Power GND
Pink
Static elimination stop input signal
(Static elimination can be turned on or off by
shorting this wire and the orange wire.)
Orange Output signal GND
Black Ion level alarm output signal
White Condition alarm output signal
Gray Alarm output signal
Shielded wire
(Thick black wire)
Ground lead (Connect to a Class D ground.)
+24V
3k Ω
INPUT*
0V
470 Ω
Input zero-voltage contact (relay, etc.) or NPN open
collector to INPUT.
OUTPUT*
DC40V
100mA
0V
0V
2CONNECTION AND INSTALLATION
2-1 Before Installation
Before you install this product, examine carefully the distance between the Static Elimination Blower
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.
■ 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 and the charged level.
200 400 800 1000 1200 1400 1600mm 600
600mm
600mm
0
1s 2s 3s 4s 5s
SJ-F031
200 400 800 1000 1200 1400 1600mm 600
600mm
600mm
0
1s 3s 4s 5s
SJ-F036
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-F031
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-F036
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 (grounded body).
Eliminate static from the target body at locations where it is
not directly touching metallic bodies (grounded body).
Static will be eliminated from only the surface of the
insulated body (film, sheet, etc.) that is facing the Static
Elimination Blower.
When eliminating static from both sides of a target body,
install two Static Elimination Blowers as one unit must be
installed on either side of the target body.
Install the Static Elimination Blower 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-F031/036.
• Install the Static Elimination Blower away from the wall or surrounding objects.
• Install the Static Elimination Blower so that the Electrode Unit can be removed for replacement.
■ Interference
The Static Elimination Blower 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
NG
OK
Film, sheet or other electrically charged object
Metal roller
Note
50 mm or more
50 mm or more
15 mm
or more
START /STOP
START /STOP
1 1
1 1