Keyence LS-3100/3100W Series User Manual Page 69

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CHAPTER 4 Functions and Controls
Input Signal
Program (No. 1 to 10) selector input: P1 to P10
Used to select the desired program from external equipment.
When pin 2 (3, 4, ••• or 11) is grounded with GND for an instant, program
No. 1 (2, 3, ••• or 10) is selected.
When two or more pins are grounded at the same time, the program with
the smallest number will be selected.
Synchronous input: TIM
When pin 12 (TIM) is grounded with pin 13, the measured value is re-
tained. This value can be retained until pin 12 is disconnected from pin 13.
(The measured value is also retained when terminal 3 on the back panel
is grounded with terminal 4).
AUTO ZERO input: ZERO SET
When pin 14 (ZERO SET) is grounded with pin 15 (ZERO SET pulled
LOW), the measured value is reset to "0" (mm or inch) for use as a
reference. This allows a variation from this reference to be output as a
measured value.
The AUTO ZERO input uses a one-shot circuit that accepts only the first
LOW signal and ignores the following ones. This input, therefore, must be
reset first to input another AUTO ZERO input signal.
AUTO ZERO RESET Input: ZERO RESET
When pin 16 (ZERO RESET) is grounded with pin 15 (ZERO RESET
pulled LOW), the AUTO ZERO input is cleared, and normal measurement
is resumed.
The AUTO ZERO RESET input uses a one-shot circuit that accepts only
the first LOW signal and ignores the following ones. This input, therefore
must be reset first before inputting another AUTO ZERO RESET signal.
Output Signal
Comparator outputs: LO3, LO2, LO1, GO, HI1, HI2, HI3, LO, GO, and HI
Each comparator output is sent through the corresponding open-collector.
LO 3 to HI3 are used for 7-step differentiation with CH1. LO, GO, and HI
are used for 3-step differentiation CH2 at simultaneous 2-point measure-
ment.
LO1, GO, and HI1 can be used also for 3-step differentiations.
Functions of
Terminal Blocks
Analog Voltage Output
Terminals
Analog voltage proportional to the measured value is output.
±6 V is equal to ±60 mm (when voltage range of ±6 V is set to ±60 mm
measuring range).
Output impedance: 0 , Current capacity: 10 mA
ls3100_49_64.p65 08.10.1, 10:56 AM63
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