Mitsubishi Electric A1S66ADA, Руководство пользователя

Страница: 22 / 52

3 - 9 3 - 9
MELSEC-A
3 SPECIFICATION
3.4.1 Voltage input characteristic
An example of voltage input characteristic graph when the offset/gain settings are
changed is shown in Fig. 3.5.
The voltage input characteristic when the
offset value and gain value are set as shown
in the table below, is shown in the figure.
Offset value Gain value
1) 0 V 10 V
2) 0 V 5 V
3) 1 V 5 V
4) -10 V 10 V
3000
2000
1000
0
4000
-10 0 10
Analog input voltage (V)
D
ig
ita
l o
u
tp
ut
v
al
lu
e
4)
2)
3)
1)
Fig. 3.5 Voltage input characteristic graph
[Example]
On the characteristic graphs 1) to 4), the digital output voltage will be as follows when
the analog input value is set to 1 V and 3 V:
No. Analog input value Digital output value
1 V 400
1)
3 V 1200
1 V 800
2)
3 V 2400
1 V 0
3)
3 V 2000
1 V 2200
4)
3 V 2600
POINT
• When a voltage that exceeds the range of -15 V to 15 V is input, the elements
may be damaged.
• The overall accuracy is the accuracy outlined in the performance specifications
when the input voltage is in the range of -10 to 10 V. If the input voltage is
outside the range of -10 to 10 V, the accuracy may not be as indicated in the
performance specifications.
• When a value which causes the digital output value to exceed the maximum
(4095) or minimum (0) digital value is input, the digital output value will be fixed at
the maximum (4095) or minimum (0) digital value.