Mitsubishi Q64TD, User Manual

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1. OVERVIEW
This user's manual provides the specifications, handling, part names and
others of the Q64TD thermocouple temperature input module (abbreviated to
the Q64TD) and Q64TDV-GH channel isolated thermocouple/micro voltage
input module (abbreviated to the Q64TDV-GH) used with the MELSEC-Q
series CPU module.
2. SPECIFICATIONS
The following are the specifications of the Q64TD/Q64TDV-GH.
2.1 Specifications of Q64TD
2.1.1 Performance Specifications
Item Specifications
Number of channels 4 channels
Temperature
conversion value 16-bit, signed binary
(-2700 to 18200: Value to the first decimal place 10 times)
Out
put
Scaling value 16-bit, signed binary
Standard with which
thermocouple conforms
JIS C1602-1995
Usable thermocouples and
measured temperature range
accuracies
Refer to Section 2.1.2
Cold junction temperature
compensation accuracy
1.0
Accuracy As per calculation expression marked *1
Resolution B,R,S,N : 0.3 K,E,J,T : 0.1
Conversion speed 40ms/channel *2
Number of analog input
points
4 ch Pt100 connection channel/module
Insulation system
Across thermocouple input and earth
Across thermocouple input channels
Across cold junction temperature compensation input
(Pt100) and earth : Transformer insulation
: Transformer insulation
: No insulation
Dielectric withstand voltage 1780VrmsAC/3 cycles (altitude 2000m)
Insulation resistance
Across thermocouple input and earth
Across thermocouple input channels
: 500VDC 100M
Ω
or more using
insulation resistance tester
: 500VDC 10M
Ω
or more using
insulation resistance tester
Wire break detection Yes (Each channel independent) *3
E
2
PROM write count Max. 100 thousand times
Number of occupied points 16 points
Connection terminals 18-point terminal block
Applicable wire size 0.3 to 0.75mm
2
Applicable crimping terminals 1.25-3 R1.25-3(Sleeved crimping terminals are unusable)
Internal current consumption
(5VDC)
0.50A
Weight 0.25kg
Outline dimensions 98(H) 27.4(W) 90(D)mm
*1: Calculate the accuracy in the following method.
(Accuracy) = (conversion accuracy) + (temperature characteristic) (operating ambient temperature
variation) + (cold junction temperature compensation accuracy)
An operating ambient temperature variation indicates a deviation of the operating ambient
temperature from the 25 5
range.
Example: When the thermocouple used is B, the operating ambient temperature is 35 , and
the measured temperature is 1000 , the accuracy is:
( 2.5 ) + ( 0.4 ) (5 ) + ( 1 ) = 5.5
*2: The conversion speed is a period from when a temperature is input and converted into a
corresponding digital value until the value is stored into the buffer memory. When two or more
channels are used, the conversion speed is "40ms number of conversion enabled channels".
*3: At wire break detection, the temperature measurement value right before wire break occurrence is held.