Mitsubishi Electric MELSEC-A/QnA Series Handbook page 187

4
TEMPERATURE INPUT MODULE REPLACEMENT
Value up to the first decimal place × 10
(JIS C 1604-1997, IEC751 1983)
Isolated area Isolation method
Between RTD
input and
Transformer
programmable
controller
power supply
Transformer
Between RTD
input and channel
(I/O assignment: intelligent 16 points)
Q68RD3-G
3-wire type
16-bit signed binary
-2000 to 8500
Pt100
JPt100
(JIS C 1604-1981)
Ni100
(DIN 43760 1987)
-200 to 850°C
-180 to 600°C
-60 to 180°C
*1
0.1°C
320ms/8 channels
8 channels/module
1mA
Dielectric withstand
voltage
500VACrms
/minute
isolation
1000VACrms
isolation /minute
Detected per channel
16 points
40-pin connector
A6CON4
2
0.3 mm
-
: Compatible,
Compatibility
Insulation
resistance
10M or
more using
500VDC
insulation
resistance
tester
×
×
×
×
: Partial change required, ×: Incompatible
Precautions for replacement
32-bit output is not available.
As the compliance standards for the
applicable RTD differ, change the
RTD to the one that can be used with
the Q68RD3-G.
The resolution reduces.
The conversion speed is fixed at
320ms, regardless of the number of
enable channels.
The number of occupied I/O points
has changed to 16 points.
Wiring change is required.
Prepare the A6CON4 separately.
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