KEYENCE LK-2000 Series - Manual (Page 20)

20
Timing diagram
• Laser emission only starts approximately 2 seconds after the laser
emission stop input terminal is connected.
• While the timing input is connected, laser emission stops. The analog
output will hold the last value before the timing input signal turns on.
INPUT CHARACTERISTICS
Minimum input time
Data in ( )* applies to the LK-081.
Data in ( )** applies to the LK-501/503.
Synchronous (timing) input
Note: The analog output is retained for the following amount of time after
disconnection of the synchronous input terminal.
LK-031/036: Approx. 10 ms
LK-081/086: Approx. 20 ms
LK-501/503 (Sensitivity: AUTO): Approx. 100 ms
LK-501/503 (Sensitivity: HI or LOW): Approx. 16 ms
AUTO ZERO input
Note: The analog output is retained approximately 10 ms after the
synchronous input terminal is disconnected.
12 V
0 V
Synchronous
(timing) input
Analog output
Laser emission
stop input
ON
OFF
ON
OFF
ON
OFF
AUTO ZERO
input
2ms
(2.5 ms)*
(4.5 ms)**
10ms
(20 ms)*
OFF
ON
Sensitivity: AUTO: 100 ms
Sensitivity: HI or LO: 16 ms
2ms
(2.5 ms)*
(4.5 ms)**
2ms
(2.5 ms)*
(4.5 ms)**
OFF
ON