Connections – KEYENCE LK-2000 Series User Manual
Page 8
8
1
1
1
1
1, 2
2
2
2
2 Power supply input terminal
3
3
3
3
3 Frame grounding (F.G.) terminal
Earth-ground this terminal.
4
4
4
4
4 Laser emission stop input
Disconnecting this terminal from the GND terminal (5, 8, 0) stops
laser emission. Use this terminal in an emergency to stop laser
emission.
6
6
6
6
6 Synchronous (timing) input
Connecting this terminal to the GND terminal (5, 8, 0) retains the
analog output value just prior to the synchronous input, and stops
laser emission.
7
7
7
7
7 AUTO ZERO input
Connecting this terminal to the GND terminal (5, 8, 0) resets the
analog output to 0 V (12 mA). The input is a one-shot input.
CONNECTIONS
9
9
9
9
9 Alarm output (N.C.)
The output contact opens when measurement is impossible due to
an insufficient or excessive light quantity, or due to the target being
out of the measuring range. The output is normally closed.
A
A
A
A
A NEAR alarm output (N.C.)
The output contact opens when a target is positioned closer than the
measuring range. The output is normally closed.
B
B
B
B
B FAR alarm output (N.C.)
The output contact opens when a target is positioned further than
the measuring range. The output is normally closed.
C
C
C
C
C, D
D
D
D
D Analog voltage output
A voltage of ±5 V (±10 V in LK-501/503’s high-precision mode)
relative to the full measurement range is output. +12 V is output
when measuring is impossible.
C
C
C
C
C, E
E
E
E
E Analog current output
A current of 4 to 20 mA relative to the full measuring range is output.
31.2 mA is output when measuring is impossible.
Note: The analog current remains at 0 mA over the measurement
range with an analog voltage output of -7.5 V or less.
13
1
2
3
4
5
6
7
8
9
10
11
12
14
15
Analog
voltage
output (V)
0 V
Analog
current
output (mA)
24 VDC
F.G.
Laser
emission
stop input
Timing
input
Alarm
output
(N.C.)
NEAR
alarm
output
(N.C.)
FAR
alarm
output
(N.C.)
GND
GND
GND
AUTO
ZERO
input