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Mitsubishi Q68ADI
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3 - 4
MELSEC-Q
3 SPECIFICATIONS
(2) Current input characteristic
A current input characteristic graph is shown in Figure 3.2.
Digital output value
Analog input current (mA)
1)
2)
4095
4000
2000
0
–2000
–4000
–96
–4096
–30 –20 –10 0 10 20 3
0
Analog input practical range
4
Number
Analog input
range setting
Offset value Gain value Digital output value
2
Maximum
resolution
1) 4 to 20 mA 4 mA 20 mA
4
A
2) 0 to 20 mA 0 mA 20 mA
0 to 4000
5
A
User range setting 1 1 –4000 to 4000
Figure 3.2 Current input characteristic
POINT
(1) Do not input an analog input current of more than ± 30 mA. A breakdown may
result due to overheating.
(2) Set the offset/gain values for the user setting range
1 within a range in which
the following conditions are satisfied.
{ (Gain value) – (Offset value) } > 5.5 mA
(3) When an analog value that exceeds the range of the digital output value
2 is
entered, the digital output value will be fixed at the maximum or minimum
value.
• For 0 to 4000, the range for the digital output value is from –96 to 4095.

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