Scaling the analog output, Scaling the analog output -34 – KEYENCE LK-G Series User Manual

Page 92

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3-34

3

LK-G-M-NO3-E

3 Function Settings

Scaling the Analog Output

The analog voltage output can be scaled into the output voltage value within the range of
± 10.5 V.

When setting the scaling, specify the analog output values for the display value of the
desired two points.

The scaling of the analog current output (4 to 20 mA) is set by calculating the electric current
value to the voltage value by using the following formula.

The voltage value (V) = (the electric current value (mA) - 12 mA)/0.8

When the following conditions are not satisfied, "

Err-7

" is displayed and the setting can-

not be performed. Press the

key to cancel the error, and set the scaling again.

(1) Input value 1 - Input value 2 0

(2)

The output voltage is calculated by 1 mV, and the displayed value by 0.01 µm regard-
less of the specified unit and the minimum display unit.

Setting procedure of the monitor output

The following settings are performed.

Measurement content

Measurement value

Display

Point 1

Displayed value 1

-5.0000

1-d SP

Analog output voltage value 1

-10.000

1-oUt

Point 2

Displayed value 2

5.0000

2-d SP

Analog output voltage value 2

10.000

2-oUt

Measurement value [mm]

0V(12mA)

+10.5V(20.4mA)

+10V(20mA)

Voltage (Current)

–10V(4mA)

–5

+5

0

–10.5V(3.6mA)

Rangeover at the positive side

Rangeover at the negative side

+10V : +5mm
–10V : –5mm

When set to

+10.8V(20.64mA)

–10.8V(3.36mA)

Point 1

Point 2

Note

Output voltage value 2 - Output voltage value 1

10

Displayed value2 - Displayed value 1

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