User`s manual

3 - 5 3 - 5
MELSEC-Q
3 SPECIFICATIONS
(2) Current output characteristic
Figure 3.2 shows a graph of the current output characteristic.
22
20
15
10
5
4
0
0 6000 12287
Digital input vaule
1)
2)
12000
Analog output practical range
Analog output value (mA)
Number
Output value
range setting
Offset value Gain value Digital input value
Maximum
resolution
1) 4 to 20 mA 4 mA 20 mA
1.33
A
2) 0 to 20 mA 0 mA 20 mA
0 to 12000
1.66
A
—
User range setting1
1 1 –12000 to 12000
0.671
A
Figure 3.2 Current output characteristic
POINT
(1) Set within the digital input range and analog output range for each output
range.
If these ranges are exceeded, the maximum resolution and accuracy may not
fall within the performance specifications. (Avoid using the dotted line area
shown in Figures 3.2.)
(2) Set the offset/gain values for the user range setting1
1 within a range in
which the following conditions are satisfied.
(a) Setting range is from 0 to 22 mA
(b) { (Gain value) – (Offset value) } > 10mA