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2.2.6
Analog Input Modules
Item
Number of input channels
Input characteristics
Analog input
Input resistance
Resolution
Conversion time
Maximum input
Total error
Digital output
Isolation method
Dielectric withstand voltage
Insulation resistance
Noise durability
Indication of operating status
Number of occupied slices (Width)
Number of occupied
I/O points
Internal power consumption
(5 V DC)
Weight
MELSEC ST Series
ST1AD2-V
-10 to +10 V
at Single-End
at differential
±0.4 % (ambient temperature: 0 °C to 20 °C and 30 °C to 55 °C)
The input channels are isolated against the backplane bus by
photocouplers. There is no isolation between the channels.
500 V AC for 1 minute across the external DC terminals and FG
≥ 10 MΩ ( (across external DC terminals and FG,
Tested with noise simulator (Peak-to-peak noise voltage: 500 V,
First transient noise compliant to IEC61000-4-4: 2 kV
Inputs
Outputs
2 (1 when differential input signals are used)
Single-End or differential connection
0 to 10 V
0 to 5 V
1 to 5 V
1.0 M
2.0 M
12 bit + sign
max. 0.1 ms per channel
±15 V
±0.2 % (ambient temperature: 20 °C to 30 °C),
16 bit
checked with insulation resistance tester)
noise width/noise frequency: 1 µs/25 to 60 Hz)
With LEDs RUN and ERR
1 slot (12.6 mm)
2
2
110 mA
0.03 kg
Specifications
ST1AD2-I
0 to 20 mA
4 to 20 mA
125
250
±30 mA
110 mA
17
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