Mitsubishi Electric MELSEC-A/QnA Series Handbook page 157

4
TEMPERATURE INPUT MODULE REPLACEMENT
Q68TD-G-H02
16-bit signed binary (Scaling value)
(-2700 to 18200: value up to the first decimal place × 10)
Refer to Section 4.3.1 (2).
Refer to Section 4.3.1 (2).
*3
640ms/8 channels
Isolated area
Between thermocouple
input and programmable
controller power supply
Between thermocouple
input channels
Between cold junction
compensation input
(Pt100) and programmable
controller power supply
Available
(all the channels are independent)
8 channels + channels connected to Pt100/module
(I/O assignment: intelligent 16 points)
0.3mm
0.65A
0.22kg
Q series
Q68TD-G-H01
-270 to 1820°C
16-bit signed binary
*2
320ms/8 channels
Isolation Dielectric withstand
method voltage
Transformer
AC500Vms/1min
isolation
Transformer
AC1000Vrms/1min
isolation
Non-isolation -
Not available
16 points
40-pin connector
A6CON4
2
(22 AWG) or less
-
0.49A
0.18kg
: Compatible,
Compatibility
*1
*3
Insulation
resistance
DC500V
10M or more
-
×
×
×
×
×
×
: Partial change required, ×: Incompatible
Precautions for replacement
As they depend on the applicable
thermocouple and thermocouple
standard, refer to Section 4.3.1 (2)
and check the specifications. Use the
thermocouple that can be used on
the Q68TD-G-H02/H01.
As they depend on the applicable
thermocouple and measured
temperature range, refer to Section
4.3.1 (2) to check the specifications.
The Q68TD-G-H01 has the
disconnection monitor function.
Consider replacement with multiple
Q68TD-G-H02/H01.
The number of occupied I/O points
has changed to 16 points.
Wiring change is required.
4
- 14