3. AIAO Units
MN05003006E F or more information visit:
w w w. e a t o n . c o m
1-45
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Current input mode:
+1,000
-1,000
-12mA
-20mA
4mA
0
OFFSET
20mA
GAIN
Digital
output
Mode 3
Mode 2
Current input
Mode 2 for CR#1:
GAIN = 20mA(1,000LSB), OFFSET=4mA (200LSB).
Mode 3 for CR#1:
GAIN = 20mA(1,000LSB), OFFSET=0mA (0LSB).
GAIN:
Current input value when digital output is +1,000. Setting range
is -16 mA ~+52 mA (-800LSB ~ +2,600LSB)
OFFSET:
Current input value when digital output value is 0. Setting range
is -20 mA~+20 mA (-1,000LSB ~ +1,000LSB )
GAIN
-
OFFSET:
Setting range is +4mA ~ +32mA (200LSB~ +1,600LSB)
The chart above is to adjust A/D conversion characteristic curve for voltage input mode and
current input mode. The conversion characteristic curve can be modified by changing the
OFFSET values (CR#18~CR#21) and GAIN values (CR#24~CR#27) depending on the
application.
Voltage input: 1LSB=10V/2,000=5mV. Current input 1LSB=20mA/1,000= 20
μ
A.
D/A Conversion Characteristic Curve for CH5~CH6
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Voltage output mode:
10V
+4, 000
0
OFFSET
6V
5V
2V
GAIN
+2, 000
Voltage
out put
Mode 1
Mode 0
Digita l input
Mode 0 for CR#1:
GAIN = 5V(2,000LSB), OFFSET=0V (0LSB)
Mode 1 for CR#1:
GAIN = 6V(2,400LSB), OFFSET=2V (800LSB).
GAIN:
Voltage output value when digital input is K2,000. Setting range
is -4V~+20V(-1,600LSB ~+8,000 LSB).
OFFSET:
Voltage output value when digital input is K0.
Setting range: -5V~+5V(-2,000LSB ~ +2,000 LSB).