Keyence LK-G Series Manual de usuario descargar pdf (Pagina 53)

2-7

LK-G-M-NO2-E

2 Operations and Functions during Measurement

■ Operations from the display panel

Measure the target to be used as a reference.

Assume that "

1.2345" is displayed.

Press the key.

The measurement value display becomes zero.

• If you enable the auto-zero function for either OUT1 or OUT2 independently, the

measurement value display mode must be set to the single display.

• If you enable the auto-zero function for both OUT1 or OUT2 at the same time, the

measurement value display mode must be set to the dual display.

• The measurement value at the moment when the key is released is set as

0.0000".

• Pressing the key for three seconds cancels auto-zero.

■ Input from the ZERO terminal

Auto-zero is activated for OUT1 when ZERO1 (Terminal 10) on the 12-pin terminal block

receives an input and for OUT2 when ZERO2 (terminal 8) on the expansion connector

receives an input. Ensure that the turn-on time does not exceed two seconds.

• NPN type : OFF when opened/ON when short-circuited with COM (No.12)

• PNP type : OFF when opened/ON when the voltage is applied

The measurement value at the turning-on moment is set as "

0.0000".

If the ZERO1 terminal or the ZERO2 terminal is turned on for two seconds or more, auto-

zero is canceled.

■ RS-232C interface

You can send the command from the external devices by using the RS-232C interface to set or

cancel the auto-zero function.

Refer to "Switching the Measurement Value Displays" (page 2-2) for switching the

measurement value display.

Refer to "Chapter 5 RS-232C" (page 5-1).

OUT1

HI GO LO

TIM

OUT2

TIM

OUT1

HI GO LO

TIM

OUT2

TIM

Reference

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Keyence LK-G Series Manual de usuario Pagina 53

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