KEYENCE LK-2000 Series - Manual (Page 11)

11
OUTPUT CHARACTERISTICS AND LED INDICATOR
[LK-501/503 IN HIGH-PRECISION MODE]
Adjust the distance between the sensor head and target by checking the
sensor head’s LED operation indicator.
LK-501
Measuring
range
Out of
measuring
range Out of
measuring
range
350 mm
Analog
output
250
ø1200 µm ø300 µm ø400 µm
450 350 400
–5 V
(4 mA)
–10 V
(0 mA)
10 V
(28 mA)
5 V
(20 mA)
12 V
(31.2 mA)
Spot diameter
LED operation indicator Flashing yellow Flashing yellow Yellow Yellow Green
Measuring distance (mm)
OPEN
CLOSED
OPEN
CLOSED
OPEN
CLOSED
NEAR output
(N.C.)
FAR output
(N.C.)
Alarm output
(N.C.)
300
In high-precision mode, an analog
current is only output when the
measurement range is between 275 mm
and 450 mm. The analog current remains
at 0 mA when the measurement range is
275 mm or less.
Note 1: The NEAR or FAR output turns on only when the target moves
slowly from the inside to the outside of the measurement range.
Note 2: When measurement is affected by scattered reflections from a
mirror-surfaced target, the operation indicator shows normal status, and
the alarm output is not turned on even if the target is out of the measure-
ment range.
SPOT DIAMETER
<LK-036/086>
<LK-031/081/501/503>
Data in ( )* applies to the LK-086.
30 mm
(80 mm)*
5 mm
(15 mm)*
5 mm
(15 mm)*
450 µm
(500 µm)*
250 µm (350 µm)*
850 µm
(1100 µm)*
30 µm (70 µm)*
1250 µm (1700 µm)*
250 µm
(350 µm)*
30 mm
(80 mm)*
(350 mm)**
(500 mm)***
5 mm
(15 mm)*
(100 mm)**
(250 mm)***
5 mm
(15 mm)*
(100 mm)**
(250 mm)***
ø250 µm
(ø350 µm)*
(ø1200 µm)**
(ø1200 µm)***
ø30 µm
(ø70 µm)*
(ø700 µm)**
(ø300 µm)***
ø250 µm
(ø350 µm)*
(ø400 µm)**
(ø1200 µm)***
Data in ( )* applies to the LK-081.
Data in ( )** applies to the LK-501/503 in high-precision mode.
Data in ( )*** applies to the LK-501/503 in long-range mode.