Technical data

February 2007
48
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PLC, I/O & Communications Products
IT. Connect
Remote I/O Modules (D77A Series)
Analogue Input Module — D77A-NI4
Table 64. D77A-NI4 — Specifications
1
Input filter setting affects the effective resolution of channel.
2
The time to update one channel when various filters are used within one module.
Figure 62. D77A-NI4 Wiring Diagram
Description Specification
Voltage Input 0 – 5V DC, 1 – 5V DC, 0 – 10V DC
Current Input 4 – 20 mA, 0 – 20 mA
QCPort Current Draw 60 mA max.
Input Types Single ended, Uni-polar
Points 4
Resolution
1
Filter Setting Effective Resolution
0 – 10V DC 0 – 5V DC, 1 – 5V DC / 4 – 20 mA, 0 – 20 mA
50 Hz
60 Hz
250 Hz
500 Hz
14 bit
14 bit
13 bit
13 bit
14 bit
14 bit
12 bit
9 bit
Input Full Scale Voltage Current
0 – 10.5V DC, 0 – 5.25V DC 0 – 21 mA
Max Overload 30V DC / 32 mA
Input to Bus Isolation 500V AC for 60 seconds
Input Filter 50 Hz, 60 Hz, 250 Hz, 500 Hz
Common Mode Rejection > 60 dB @ 50 Hz and 60 Hz
Normal Mode Rejection Ratio - 50 dB @ 50 Hz and 60 Hz
Input Impedance Voltage Current
15 M ohm 250 ohm
Accuracy Voltage Current
± 0.3% full scale @ 25°C
± 0.4% full scale @ 0 – 55°C
± 0.45% full scale @ 25°C
± 0.5% full scale @ 0 – 55°C
Update Rate
2
Input Filter Update Time
50 Hz
60 Hz
250 Hz
500 Hz
336 mS
283 mS
80 mS
44 m S
Voltage
Terminal
4
5
10
11
12
V1
I1
V3
I3
C3
Current
Earth ground
i
Earth ground
Earth ground
i
Earth ground
Earth ground
i
Earth ground
Earth ground
i
Earth ground
3C0
2I0
1V0
6C1
7V2
8I2
9
C2