KEYENCE LV-SA - Manual (Page 10)

10 E LV-S-IM
Caution on a lustrous workpiece (LVS31)
If the workpiece is lustrous, the trimmer adjustment may not succeed or
detection may be unstable. In such a case, install the sensor slightly tilted.
Error Indication
The following indications on the LCD display show the error events. Correct
the problem using the following countermeasures.
Tips on Correct Use
• To extend the amplifier unit cable, use the cable with the nominal cross-
sectional area no less than 0.3 mm
2 , and with the length no more than 100
m. (Contact your nearest KEYENCE office when in the event of additional
installation.)
• Separate the wiring of the sensor cable from the power line or the high volt-
age line, since the use of these lines in the same pipe generates noise,
which may cause malfunction or product breakdown.
• If you use a commercially available switching regulator, be sure to ground
the frame GND terminal and the GND terminal.
• Do not use the LV-S Series at a location where external light directly falls on
the light-receiving surface.
• When setting the sensitivity, the detection distance may vary depending on
the individual characteristics.
• If you wire the unit incorrectly, the LV-S Series may become hot, or the sen-
sitivity may change.
• Do not connect the sensor head connector to the amplifier unit more than
100 times.
• Displayed values may slightly change depending on the environment (tem-
perature shift, dust, etc.).
WARRANTIES AND DISCLAIMERS
(1) KEYENCE warrants the Products to be free of defects in materials and
workmanship for a period of one (1) year from the date of shipment. If any
models or samples were shown to Buyer, such models or samples were
used merely to illustrate the general type and quality of the Products and
not to represent that the Products would necessarily conform to said
models or samples. Any Products found to be defective must be shipped
to KEYENCE with all shipping costs paid by Buyer or offered to KEYENCE
for inspection and examination. Upon examination by KEYENCE,
KEYENCE, at its sole option, will refund the purchase price of, or repair or
replace at no charge any Products found to be defective. This warranty
does not apply to any defects resulting from any action of Buyer, including
but not limited to improper installation, improper interfacing, improper
repair, unauthorized modification, misapplication and mishandling, such
as exposure to excessive current, heat, coldness, moisture, vibration or
outdoors air. Components which wear are not warranted.
(2) KEYENCE is pleased to offer suggestions on the use of its various
Products. They are only suggestions, and it is Buyer's responsibility to
ascertain the fitness of the Products for Buyer’s intended use. KEYENCE
will not be responsible for any damages that may result from the use of the
Products.
(3) The Products and any samples ("Products/Samples") supplied to Buyer
are not to be used internally in humans, for human transportation, as
safety devices or fail-safe systems, unless their written specifications
state otherwise. Should any Products/Samples be used in such a manner
or misused in any way, KEYENCE assumes no responsibility, and
additionally Buyer will indemnify KEYENCE and hold KEYENCE harmless
from any liability or damage whatsoever arising out of any misuse of the
Products/Samples.
(4) OTHER THAN AS STATED HEREIN, THE PRODUCTS/SAMPLES ARE
PROVIDED WITH NO OTHER WARRANTIES WHATSOEVER. ALL
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WITHOUT LIMITATION, THE WARRANTIES OF MERCHANTABILITY,
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INCIDENTAL, PUNITIVE, SPECIAL OR CONSEQUENTIAL DAMAGES
(INCLUDING, WITHOUT LIMITATION, ANY DAMAGES RESULTING
FROM LOSS OF USE, BUSINESS INTERRUPTION, LOSS OF
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SUBSTITUTED GOODS, SERVICES OR TECHNOLOGIES, OR FOR
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BUYER'S TRANSFER OBLIGATIONS:
If the Products/Samples purchased by Buyer are to be resold or delivered
to a third party, Buyer must provide such third party with a copy of this
document, all specifications, manuals, catalogs, leaflets and written
information provided to Buyer pertaining to the Products/Samples.
E 1110-2
Error indication Cause Remedy
Sensor head is not
connected.
Head cable is broken. • Check that the sensor head is
connected.
• Check that the head cable is
not broken.
• Check the connection of the
head cable to the connector.
• After checking these points,
turn on the power again.
Overcurrent flows through
the output wire. • Check the load and reduce
the current to be within the
rated range.
• Check that the output wire
does not touch another wire or
a frame.
Data write/read error • Perform initialization.
Data has been written in
the EEPROM more than
one million times and can
no longer be updated. • If you need to write more data,
replace the amplifier unit.
2011
11665E 1041-1 96M11665