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I/o Conversion Characteristics - Mitsubishi Electric Q66DA-G User Manual

Channel isolated digital-analog converter module.
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3
SPECIFICATIONS
Item
External supply power
Internal current consumption
(5 VDC)
Weight
Remark
3.1.2

I/O conversion characteristics

I/O conversion characteristics are used for converting the digital value written from the pro-
grammable controller CPU to an analog output value (voltage or current output), and rep-
resented by inclined straight lines when offset and gain values are included.
Offset value
The offset value is an analog output value (voltage or current) when a digital input value
set from the programmable controller CPU is 0.
Gain value
The gain value is an analog output value (voltage or current) when a digital input value set
from the programmable controller CPU is
4000 (in normal resolution mode),
12000 (when 1 to 5V, 0 to 5V, 4 to 20 mA, 0 to 20 mA or the user range setting1 to 3 is
16000 (when -10 to 10V is selected in high resolution mode).
Table3.1 Performance specifications list
*1 Accuracy of offset/gain setting at ambient temperature
The Q66DA-G needs to be powered on 30 minutes prior to operation for compliance to the specifi-
cation (accuracy).
*2 Accuracy per temperature change of 1 °C
Example: Accuracy when temperature changes from 25 to 30 °C
0.1% (Reference accuracy) + 0.008%/ °C (temperature coefficient)
change difference) = 0.14%
*3 The following indicates the external load resistance when output current is 20mA or more.
22mA
20mA
Output
current
External load resistance
*4 For the details of the I/O conversion characteristic, refer to Section 3.2.1.
*5 GX Configurator-DA is not available with extended mode range settings.
Refer to the user's manual for the CPU module being used for the general specifi-
cations for the Q66DA-G.
selected in high resolution mode), or
Specifications
24VDC, +20%, -15%
Ripple, spike within 500 mV
P-P
Inrush current: 4.8A, within 400 s
0.22A
0.62A
0.22kg
500
600
3.1 Performance Specifications
3.1.2 I/O conversion characteristics
1
2
5 °C (temperature
3
4
5
6
7
8
3
- 2

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