I/O Conversion Characteristics - Mitsubishi Electric MELSEC-Q series User Manual

3.2.2

I/O conversion characteristics

An I/O conversion characteristic is expressed with the slope of the line connecting an offset value and gain value when
a CT input value (current) is converted to a digital value.
(1) Offset value
This is the CT input value (current) converted to the digital output value of 0.
(2) Gain value
This is the CT input value (current) converted to the digital output value of 10000.
(3) I/O conversion characteristics
The following graph shows the I/O conversion characteristics.
12000
1)
10000
Digital
output
value
0 50
No. Input range setting
1) 0 to 5AAC
2) 0 to 50AAC
3) 0 to 100AAC
4) 0 to 200AAC
5) 0 to 400AAC
6) 0 to 600AAC
*1 If an analog value is input exceeding the digital output range, the digital output value is fixed to the maximum (12000) or
minimum (0).
Practical input range
2)
3)
4)
100 200
Offset value
0A
0A
0A
0A
0A
0A
5)
6)
400
CT input value (A)
Gain value
Digital output value
5A
50A
100A
0 to 10000
200A
400A
600A
CHAPTER 3 SPECIFICATIONS
600
Maximum
*1
resolution
0.5mA
5mA
10mA
20mA
40mA
60mA
27
3