KEYENCE SJ-F300 Series - Manual (Page 8)

7
3-3 Operation
■ Blow rate adjustment using the Static Elimination Blower Unit
This allows individual blow rate adjustment of each Static Elimination Blower Unit.
1
Press or to select the blow
rate indicator.
The blow rate indicator lights in red.
2
Press and hold for about two
seconds to select the adjustment
mode.
The blow rate indicator blinks in red.
3
Press or to adjust blow
rate.
The monitor LED lights to indicate
the blow rate selected.
• Pressing and holding or enables continuous adjustment of blow rate.
4
Press to complete the blow
rate setup.
Increases blow rate.
Decreases blow rate.
Blow rate indicator
Tip
3-3 Operation
Adjusting Ion Level Alarm Sensitivity
This adjustment allows you to be alerted when the ion emission level has dropped below the setting
value due to dirt or wear of the electrode needles in the connection units by causing the ion level alarm
indicator to blink and an alarm signal (control output [N.O.]) to output.
This section describes how to adjust ion level alarm sensitivity.
Refer to
"Ion level alarm output function" (page 8) for indicated states during an alarm output.
■ Adjusting sensitivity
Use the ion level alarm sensitivity setup switch on the Controller
Unit to adjust the sensitivity.
The default setting for the ion level alarm sensitivity switch is "L (Low)".
Static elimination is active during ion level alarm output. Be sure to turn the power
OFF before attempting maintenance on the electrode needles.
Adjusting Condition Alarm Sensitivity
This feature allows you to be alerted when static elimination performance is influenced by the
installation environment (temperature, humidity, surrounding metal objects, etc.) or when ions are
absorbed by surrounding metal objects in the connection units by causing the condition alarm output
indicator to blink and an alarm signal (control output (N.O.)) to output.
This section describes how to adjust condition alarm sensitivity.
Refer to
"Condition alarm output function" (page 9) for indicated state during an alarm output.
■ Adjusting sensitivity
Use the condition alarm sensitivity setup switch on the Controller
Unit to adjust the sensitivity.
The default setting for the condition alarm sensitivity switch is "L (Low)".
Ion level alarm sensitivity setup switch
H : High sensitivity
M : Medium sensitivity
L : Low sensitivity
Tip
Important:
Condition alarm sensitivity setup switch
H : High sensitivity
M : Medium sensitivity
L : Low sensitivity
Tip
3-3 Operation
Adjusting Ion Balance
The SJ-F300 Series senses the charged amount of the target object by the I.C.C. function to
automatically control the emission (balance) of plus and minus ions.
The zero point, the point for reference for the I.C.C. function, is adjusted before shipment. However, in
some environments, the zero point sometimes drifts. If this reference zero point drifts, adequate static
elimination cannot be maintained.
The SJ-F300 Series allows arbitrary adjustment of ion balance.
Follow one of the procedures below to adjust ion balance.
• Ion balance adjustment using the Controller Unit
• Ion balance adjustment using the Static Elimination Blower Unit
This section describes each adjustment procedure.
■ Ion balance adjustment using the Controller Unit
1
Press and hold and for about two seconds
simultaneously.
The ion level alarm indicator blinks and the ion balance
adjustment mode is selected.
2
Press or for about one second to adjust the ion
balance.
3
Press and simultaneously to complete the
setup.
• It takes about 30 seconds for the ion balance setting to be reflected after the setup
completed.
• In the case of adjustment using the Controller Unit, the ion balances of all the Static
Elimination Blower Units being in connection are adjusted collectively.
• In the case where two ore more Static Elimination Blower Units each having
different ion balance are connected, the difference is maintained during the
adjustment. Note that when the ion level reaches the threshold of the zero point,
the setting value will be the same at that value.
Every pressing for about one second moves the
zero point to the + side.
Every pressing for about one second moves the
zero point to the - side.
Ion level alarm indicator
Note:
3-3 Operation
■ Ion balance adjustment using the Static Elimination Blower Unit
1
Press or to select the ion
balance indicator.
The ion balance indicator lights in red.
2
Press and hold for about two
seconds.
The ion balance indicator blinks in
red and the ion balance adjustment
mode is selected.
3
Press or to adjust ion balance.
4
Press to complete the ion
balance setup.
■ Confirmation and clear of the ion balance setting value
1
Press and hold for about two
seconds with the ion balance
displayed.
The ion balance indicator blinks in
red and the ion balance adjustment
mode is selected.
2
Press and or
simultaneously on the Static
Elimination Blower Unit.
The monitor displays the ion
balance setting. You can
confirm the adjusted state from
the color and the position of the
LED that lights up. Pressing
and holding
and or
simultaneously for about three
seconds clears the adjustment
values.
3
Press on the Static Elimination Blower Unit to complete the adjustment.
The zero point moves to the
+ side.
The zero point moves to the
- side.
Ion balance indicator
Ion balance indicator
Without adjustment
Lit in green
Adjustment in the
+ direction
Lit in green
Full adjustment in
the + direction
Lit in red