Mitsubishi Electronics AJ65SBT-64AD Voltage input characteristics, Voltage Input Characteristic

3 SPECIFICATION

3.3.1 Voltage input characteristics

The voltage input characteristic graph is shown below.

MELSEC-A

Analog input parcitcal value

Digital output value

4095
4000
						1
2000
			2
					3
0
				1
-96
-2000
-4000
-4096
							5
-15	-10	-5	0	5	10	1
		Analog input voltage (V)

Number	Analog Input Range	Offset	Gain	Digital Output	Maximum
	Setting	Value	Value	Value*	Resolution
1)	-10 to +10V	0V	10V	-4000 to +4000	2.5mV
2)	0 to 5V	0V	5V	0 to 4000	1.25mV
3)	1 to 5V	1V	5V		1.0mV
—	User range setting 1	0V	10V	-4000 to +4000	2.5mV
	(-10 to +10V)
—	User range setting 2	0V	5V	0 to 4000	1.0mV
	(0 to 5V)

Fig. 3.1 Voltage Input Characteristic

POINT

(1)Do not input more than ±15V. The element may be damaged.

(2)If the analog input provided corresponds to the digital output value* beyond its range, the digital output value is fixed to the maximum or minimum.

For 0 to 4000, the digital output value is within the range -96 to 4095.

For -4000 to +4000, the digital output value is within the range -4096 to +4095.

(3)Within the analog input and digital output scopes of each input range, the maximum resolution and accuracy are within the performance specification range. Outside those scopes, however, they may not fall within the performance specification range. (Avoid using the dotted line part in Fig. 3.1.)

(4)Set the offset and gain values of the user range setting within the range satisfying the following conditions.

(a)Setting range when user range setting 1 is selected: -10 to +10V

(b)Setting range when user range setting 2 is selected: 0 to 5V

(c)(Gain value) > (Offset value)

If you attempt to make setting outside the setting range of (a) or (b), the "RUN" LED flickers at 0.5s intervals.

Set the values within the setting range.

If you attempt to make setting outside the setting range of (c), the "RUN" LED flickers at 0.5s intervals.

Make setting again.

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