This manual confers no industrial property rights or any rights of any other kind,
nor does it confer any patent licenses. Mitsubishi Electric Corporation cannot be
held responsible for any problems involving industrial property rights which may
occur as a result of using the contents noted in this manual.
3.4 Grounding
Grounding should be performed as stated below.
• The grounding resistance should be 100Ω or less.
• Independent grounding should be performed for best results.
When independent grounding is not performed, perform "shared - of the following
figure.
→ For details, refer to the FX3G Series User's
Manual - Hardware Edition.
→ For details, refer to the FX3U Series User's
Manual - Hardware Edition.
→ For details, refer to the FX3UC Series User's
Manual - Hardware Edition.
• The grounding wire size should be AWG 22-20 (0.3-0.5 mm2).
• The grounding point should be close to the PLC, and all grounding wire should be
as short as possible.
4. Specifications
4.1 Applicable PLC
The version number can be checked by monitoring D8001 as the last three digits
indicate it.
4.2 General Specifications
For the general specifications, refer to the manual of the PLC main unit.
The items other than the following are equivalent to those of the PLC main unit.
STARTUP AND
MAINTENANCE
PRECAUTIONS
• Do not disassemble or modify the PLC.
Doing so may cause fire, equipment failures, or malfunctions.
* For repair, contact your local Mitsubishi Electric distributor.
• Do not drop the product or exert strong impact to it.
Doing so may cause damage.
DISPOSAL
PRECAUTIONS
• Please contact a certified electronic waste disposal company for the
environmentally safe recycling and disposal of your device.
TRANSPORT AND
STORAGE PRECAUTIONS
• The product is a precision instrument. During transportation, avoid any impacts.
Failure to do so may cause failures in the product. After transportation, verify the
operations of the product.
Model name Applicability
FX3U Series PLC Ver. 2.20 or later (from first production)
FX3UC Series PLC Ver. 1.30 or later (from the production manufactured in August,
2004 with SER No. 48****)
FX3G Series PLC Ver. 1.00 or later (from first production)
Item Specification
PLC Another
equipment
PLC Another
equipment
PLC Another
equipment
Shared grounding
Good condition
Common grounding
Not allowed
Independent grounding
Best condition
4.4 Performance Specifications
Item
Description
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°C0.18°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
of 0 to 55°C)
A/D conversion
time
• FX3U/FX3UC Series PLC: 200µs
(The data will be updated at every scan time of the PLC.)
• FX3G Series PLC: 250µs
(The data will be updated at every scan time of the PLC.)
Input
characteristics
Insulation
method
• The photocoupler is adopted to insulate the analog input
area from the PLC.
• The DC/DC converter is adopted to insulate the power
supply line from the analog input area.
• Channels are not insulated from each other.
Occupied
points
0 point (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
Approx.+255°C
+2550
-550
0
+482°
F
+4820
-58°
F
-580 -67°
F
Approx.+491°
F
+4910
-670