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I-7
2 Specifications
2.2 Power Supply Specifications
FX
3G
/FX
3U
/FX
3UC
PLC User's Manual - Analog Control Edition
FX
3U
-4AD-PT-ADP (4-channel Platinum Resistance Thermometer Data Input)
A
Common Items
B
FX
3U
-4AD
FX
3UC
-4AD
C
FX
3U
-4AD-ADP
D
FX
3G
-2AD-BD
E
FX
3U
-4DA
F
FX
3U
-4DA-ADP
G
FX
3G
-1DA-BD
H
FX
3U
-3A-ADP
I
FX
3U
-4AD-PT
-ADP
J
FX
3U
-4AD-PTW
-ADP
2.2 Power Supply Specifications
2.3 Performance Specifications
Items Specification
A/D conversion circuit
driving power
24V DC +20% -15%, 50mA
(It is necessary to connect a 24V DC power supply to the terminal block.)
Interface driving power
5V DC, 15mA
(Since the internal power is supplied from the FX Series main unit, it is not
necessary to supply the power.)
Items
Specifications
Centigrade (°C) Fahrenheit (°F)
Input signal
3-wire platinum resistance thermometer sensor
Pt100 JIS C 1604-1997
Rated temperature
range
-50°C to +250°C-58°F to +482°F
Digital output -500 to +2500 -580 to +4820
Resolution 0.1°C
0.18
°
F
Total accuracy
• ±0.5% for full scale (when ambient temperature is 25°C±5°C)
• ±1.0% for full scale (when ambient temperature is in the range from 0 to 55°C)
A/D conversion
time
•FX
3U/FX3UC Series PLC : 200μs (The data will be updated at every scan time.)
•FX
3G Series PLC : 250μs (The data will be updated at every scan time.)
→For a detailed description of data update, refer to Section 2.4.
Input
characteristics
Insulation method
• The photocoupler is used to insulate the analog input area from the PLC.
• The DC/DC converter is used to insulate the power supply line from the analog input
area.
• Channels are not insulated from each other.
Number of I/O
points occupied
0 points
(This number is not related to the maximum number of input/output points of the PLC.)
0
+250
°
C
+2500
-50
°
C
-500
-55°C
+255°C
+2550
-550
0
+482
°
F
+4820
-58
°
F
-580
-67°F
+491°F
-670
+4910