Panasonic Digital Fiber Sensor FX-301 - Manual (Page 63)

526
FX-301-F
PRECAUTIONS FOR PROPER USE
NO / NC selection function [Liquid (F9) mode only]
• The NO / NC selection can be done by pressing the jog switch for
3 sec., or more, when Liquid (F9) mode ( ) has been set and
MODE indicator / DISP (yellow) lights up. In case of Leak (F7)
mode (
), the display does not change to NO / NC selection
function.
For the selection method of Leak (F7) mode / Liquid (F9) mode,
refer to ‘Individual teaching mode’ on p.603 or ‘Collective
teaching mode’ on p.604.
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.
• 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.
• 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.
• Make sure to use an isolation transformer for the DC power
supply. If an auto-transformer (single winding transformer) is used,
this product or the power supply may get damaged.
• In case a surge is generated in the used power supply, connect a
surge absorber to the supply and absorb the surge.
• 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.
• 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-starter lamp or a high frequency lighting device,
as it may affect the sensing performance.
• Avoid dust, dirt, and steam.
• When the fiber head gets dusty or dirty etc. the sensitivity
deteriorates. To keep stable detection, wipe the fiber head to
remove dust or dir t etc. and carry out sensitivity teaching
periodically.
• This sensor is suitable for indoor use only.
• 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 gases.
• Never disassemble or modify the sensor. Error indication
• When an error is displayed, remedy as follows.
Confir m if the sensor is in Liquid (F9) mode
(
) in ‘ Individual teaching mode ’ or
‘ Collective teaching mode ’ .
Press MODE key to light up
MODE indicator / OUT
(yellow).
Press Jog switch for 3 sec., or
more.
The sensor goes into the NO /
NC setting condition.
MODE indicator / RUN (green)
blinks.
When Jog switch is turned to the ‘
ם
’
side or ‘
מ
’ side, the display and
MODE indicator / RUN (green) blinks,
and NO / NC can be chosen.
: Nor mally closed (OFF in
liquid absent condition.)
: Normally open (OFF in liquid
present condition.)
When Jog switch is pressed,
setting display blinks 3 times and
is confirmed.
The sensor returns to the step 2 .
When MODE key is pressed, the sensor returns to RUN
mode and the incident light intensity is displayed.
MODE indicator / RUN (green) lights up.
The setting is complete.
1
2
3
4
5
6
7
Step Description Display
Note: The initial setting at the time of factory shipment is the normal close
( ) setting.
Excessive current
flows due to a short-
circuit.
The teaching is ab-
normal.
The communication is
abnormal.
Switch off the power supply
and check the load.
Check the installation condition
of the fiber, or whether the
fiber has come out, and then
do teaching again.
Press MODE key to cancel
‘
’. After the cancellation,
the sensor operates at the set
value conditions before the
error. However, in case the
sensitivity selection function
has been set to the automatic
sensitivity setting (
), the
sensor operates at optimum
sensitivity.
Check if the amplifiers
mounted in cascade are
disconnected.
After the
confirmation, do the teaching
again.
Error indication Cause Remedy
(
(
08/2005