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Fx-301, Precautions for proper use amplifier – Panasonic Digital Fiber Sensor FX-301 User Manual

Page 31

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98

FX-301

PRECAUTIONS FOR PROPER USE

Amplifier

Threshold value fine adjustment

Key-lock function

Press MODE key to light up
MODE indicator / ADJ (yellow).

When jog switch is pressed,
the threshold value is confirmed.

1

2

2

Step

Description

Display

In case the threshold value is to be increased
(sensitivity to be reduced), turn the jog
switch to the ‘

ם

’ side to increase the

threshold value slowly.
If the jog switch is turned continuously
to the ‘

ם

’ side, the threshold value

increases rapidly.
In case the threshold value is to be
decreased (sensitivity to be
increased), turn the jog switch to the

מ

’ side to decrease the threshold

value slowly. If the jog switch is turned continuously to
the ‘

מ

’ side, the threshold value decreases rapidly.

or

Output operation setting

Timer operation setting

Press MODE key to light up
MODE indicator / L/D ON
(yellow).

If the jog switch is turn to the

ם

’ or ‘

מ

’ direction, the output

operation setting will change.

When jog switch is pressed,
the threshold value is confirmed.

1

2

3

Step

Description

Display

Displays
present setting

Light state

Dark state

Displays
selected setting

• The setting for whether the timer is used or not can be

done when MODE indicator / TIMER (yellow) lights up.

• 10 ms OFF-delay (initial value) timer is automatically set

when the timer is set to be used.

• Further, an OFF-delay (initial value) which is useful when

the response of the connected device is slow, etc., an ON-
delay which is useful to detect only objects taking a long
time to travel, and ONE SHOT, which is useful when the
input specifications of the connected device require a
signal of a fixed width, are possible with the FX-301
series. Refer to the ‘Fiber Sensor Guide Book’ or ‘SUNX
fiber sensor home page’ (http://www fiber-sensor.com) for
the setting method of the OFF-delay, ON-delay and ONE
SHOT timer intervals.

(Note)

Note: The OFF-delay timer interval set in the PRO mode is displayed.

Refer to the ‘Fiber Sensor Guide Book’ or ‘SUNX fiber sensor home
page’ (http://www fiber-sensor.com) for more details.

• With the FX-301B(P)/G(P)/H(P), if jog switch and MODE

key are pressed for more than 3 sec. at the same time in
‘RUN’ mode condition, the key operations are locked, and
only the threshold value confirmation function or the adjust
function (valid only when the adjust lock function is
canceled) is valid.

To cancel the lock function, press both the keys for more

than 3 sec. once again.

Wiring
• Make sure that the power supply is off while wiring.
• Verify that the supply voltage variation is within the rating.
• Take care that if a voltage exceeding the rated range is

applied, or if an AC power supply is directly connected, the
sensor may get burnt or damaged.

• If power is supplied from a commercial switching regulator,

ensure that the frame ground (F.G.) terminal of the power
supply is connected to an actual ground.

• In case noise generating equipment (switching regulator,

inverter motor, etc.) is used in the vicinity of this product,
connect the frame ground (F.G.) terminal of the equipment
to an actual ground.

• Take care that short-circuit or wrong wiring of the load may

burn or damage the sensor.

• Do not run the wires together with high-voltage lines or

power lines or put them in the same raceway. This can
cause malfunction due to induction.

• Ensure that an isolation transformer is utilized for the DC

power supply. If an auto transformer is utilized, the main
amplifier or power supply may be damaged.

• Make sure to use the optional quick-connection cable for

the connection of the amplifier. Extension up to total
100 m

328.084 ft

is possible with 0.3 mm

2

, or more, cable.

However, in order to reduce noise, make the wiring as
short as possible.

Others
• Do not use during the initial transient time (0.5 sec.

approx.) after the power supply is switched on.

• Take care that the sensor is not directly exposed to

fluorescent light from a rapid-star ter lamp or a high
frequency lighting device, as it may affect the sensing
performance.

• This sensor is suitable for indoor use only.
• Avoid dust, dirt, and steam.
• Take care that the product does not come in direct contact

with water, oil, grease, or organic solvents, such as,
thinner, etc.

• This sensor cannot be used in an environment containing

inflammable or explosive gasses.

• Never disassemble or modify the sensor.

08/2005