Mitsubishi Electric MELSEC-A/QnA Series Handbook page 195

4
TEMPERATURE INPUT MODULE REPLACEMENT
Value up to the first decimal place × 10
32-bit signed binary data
Value up to the third decimal place × 1000
(JIS C 1604-1997, IEC751 1983)
Ambient temperature 0 to 55°C: ±0.25%
(accuracy relative to maximum value)
Ambient temperature 25±5°C: ±0.08%
(accuracy relative to maximum value)
Isolated area Isolation method
Between platinum
RTD input and
Photocoupler
programmable
controller
power supply
Between platinum
RTD input and Non-isolation
channel
(I/O assignment: intelligent 16 points)
18-point terminal block
(Sleeved solderless terminal cannot be used.)
Q64RD
3/4-wire type
16-bit signed binary
-2000 to 8500
-200000 to 850000
Pt100
JPt100
(JIS C 1604-1981)
-200 to 850°C
-180 to 600°C
0.025°C
40ms/channel
4 channels/module
1mA
Dielectric withstand
voltage
1780VrmsAC/3 cycles
isolation
(altitude 2000m)
-
Detected per channel
16 points
2
0.3 to 0.75mm
1.25-3, R1.25-3
: Compatible,
Compatibility
Insulation
resistance
10M or
more using
500VDC
insulation
resistance
tester
×
×
×
: Partial change required, ×: Incompatible
Precautions for replacement
As the compliance standards for the
applicable platinum RTD differ,
change the platinum RTD to the one
that can be used with the Q64RD.
Consider replacement with multiple
Q64RD.
The number of occupied I/O points
has changed to 16 points.
Wiring change is required.
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