Mitsubishi AJ65BT-68TD User Manual

AJ65BT-68TD
Thermocouple
Temperature Input Module
Mitsubishi General-Purpose Programmable Controller
User's Manual
(Hardware)
Thank you for purchasing the Mitsubishi general-purpose
programmable controller MELSEC-A series.
Prior to use, please read this manual thoroughly and
familiarize yourself with the product.
Type AJ65BT68TD-U-HW-E
Type
13JL49
Code
IB(NA)-66830-G(1012)MEE
C 1996 MITSUBISHI ELECTRIC CORPORATION
SAFETY PRECAUTIONS
(Read these precautions before using this product.)
Before using this product, please read this manual and the relevant manuals carefully
and pay full attention to safety to handle the product correctly.
These precautions apply only to Mitsubishi equipment. Refer to the CPU module user's
manual for a description of the programmable controller system safety precautions.
In this manual, the safety precautions are classified into two levels: " WARNING "
and " CAUTION".
Indicates that incorrect handling may cause hazardous
WARNING
conditions, resulting in death or severe injury.
Indicates that incorrect handling may cause hazardous
CAUTION
conditions, resulting in minor or moderate injury or property
damage.
Under some circumstances, failure to observe the precautions given under "
CAUTION" may lead to serious consequences.
Observe the precautions of both levels because they are important for personal and
system safety.
Make sure that the end users read this manual and then keep the manual in a safe place
for future reference.
[Design Precautions]
WARNING
• In the case of a communication failure in the network, data in the master
module are held.
Check the communication status information (SB, SW) and configure an
interlock circuit in the sequence program to ensure that the entire system
will operate safely.
CAUTION
• Do not install the control lines or communication cables together with the
main circuit lines or power cables.
Keep a distance of 100mm (3.94 inches) or more between them.
Failure to do so may result in malfunction due to noise.
[Installation Precautions]
CAUTION
• Use the programmable controller in an environment that meets the general
specifications in this manual.
Failure to do so may result in electric shock, fire, malfunction, or damage to
or deterioration of the product.
• For protection of the switches, do not remove the cushioning material before
installation.
• Securely fix the module with a DIN rail or mounting screws. Tighten the
screws within the specified torque range.
Undertightening can cause drop of the screw, short circuit or malfunction.
Overtightening can damage the screw and/or module, resulting in drop,
short circuit, or malfunction.
• Do not directly touch any conductive part of the module.
Doing so can cause malfunction or failure of the module.
[Wiring Precautions]
CAUTION
• Shut off the external power supply for the system in all phases before wiring.
Failure to do so may result in damage to the product.
• After installation or wiring, attach the included terminal cover to the module
before turning it on for operation.
Undertightening can cause short circuit or malfunction.
• Ground the FG terminals to the protective ground conductor dedicated to the
programmable controller.
Failure to do so may result in malfunction.
• Use applicable solderless terminals and tighten them within the specified
torque range. If any spade solderless terminal is used, it may be disconnected
when the terminal screw comes loose, resulting in failure.
• Check the rated voltage and terminal layout before wiring to the module, and
connect the cables correctly.
Connecting a power supply with a different voltage rating or incorrect wiring
may cause a fire or failure.
• Tighten the terminal screw within the specified torque range.
Undertightening can cause short circuit or malfunction.
Overtightening can damage the screw and/or module, resulting in drop, short
circuit, or malfunction.
• Prevent foreign matter such as dust or wire chips from entering the module.
Such foreign matter can cause a fire, failure, or malfunction.
[Wiring Precautions]
CAUTION
• Place the cables in a duct or clamp them.
If not, dangling cable may swing or inadvertently be pulled, resulting in damage
to the module or cables or malfunction due to poor contact.
• Do not install the control lines or communication cables together with the main
circuit lines or power cables. Failure to do so may result in malfunction due to
noise.
• When disconnecting the cable from the module, do not pull the cable by the
cable part. Loosen the screws of connector before disconnecting the cable.
Failure to do so may result in damage to the module or cable or malfunction
due to poor contact.
[Starting and Maintenance Precautions]
CAUTION
• Do not touch any terminal while power is on.
Doing so may cause malfunction.
• Shut off the external power supply for the system in all phases before cleaning the
module or retightening the terminal screws.
Failure to do so may cause the module to fail or malfunction.
Undertightening the terminal screws can cause short circuit or malfunction.
Overtightening can damage the screw and/or module, resulting in drop, short
circuit, or malfunction.
• Do not disassemble or modify the module.
Doing so may cause failure, malfunction, injury or a fire.
• Do not drop or apply any strong shock to the module.
Doing so may damage the module.
• Shut off the external power supply for the system in all phases before mounting or
removing the module to or from the panel.
Failure to do so may cause the module to fail or malfunction.
• Mounting/removing the terminal block is limited to 50 times after using a product.
(IEC61131-2 compliant)
• Before handling the module, touch a grounded metal object to discharge the
static electricity from the human body.
Failure to do so may cause the module to fail or malfunction.
[Disposal Precautions]
CAUTION
• When disposing of this product, treat it as industrial waste
CONDITIONS OF USE FOR THE PRODUCT
(1) Mitsubishi programmable controller ("the PRODUCT") shall be used in
conditions;
i) where any problem, fault or failure occurring in the PRODUCT, if any, shall
not lead to any major or serious accident; and
ii) where the backup and fail-safe function are systematically or automatically
provided outside of the PRODUCT for the case of any problem, fault or failure
occurring in the PRODUCT.
(2) The PRODUCT has been designed and manufactured for the purpose of being
used in general industries.
MITSUBISHI SHALL HAVE NO RESPONSIBILITY OR LIABILITY
(INCLUDING, BUT NOT LIMITED TO ANY AND ALL RESPONSIBILITY OR
LIABILITY BASED ON CONTRACT, WARRANTY, TORT, PRODUCT
LIABILITY) FOR ANY INJURY OR DEATH TO PERSONS OR LOSS OR
DAMAGE TO PROPERTY CAUSED BY the PRODUCT THAT ARE
OPERATED OR USED IN APPLICATION NOT INTENDED OR EXCLUDED
BY INSTRUCTIONS, PRECAUTIONS, OR WARNING CONTAINED IN
MITSUBISHI'S USER, INSTRUCTION AND/OR SAFETY MANUALS,
TECHNICAL BULLETINS AND GUIDELINES FOR the PRODUCT.
("Prohibited Application")
Prohibited Applications include, but not limited to, the use of the PRODUCT in;
Nuclear Power Plants and any other power plants operated by Power
companies, and/or any other cases in which the public could be affected if any
problem or fault occurs in the PRODUCT.
Railway companies or Public service purposes, and/or any other cases in
which establishment of a special quality assurance system is required by the
Purchaser or End User.
Aircraft or Aerospace, Medical applications, Train equipment, transport
equipment such as Elevator and Escalator, Incineration and Fuel devices,
Vehicles, Manned transportation, Equipment for Recreation and Amusement,
and Safety devices, handling of Nuclear or Hazardous Materials or Chemicals,
Mining and Drilling, and/or other applications where there is a significant risk of
injury to the public or property.
Notwithstanding the above, restrictions Mitsubishi may in its sole discretion,
authorize use of the PRODUCT in one or more of the Prohibited Applications,
provided that the usage of the PRODUCT is limited only for the specific
applications agreed to by Mitsubishi and provided further that no special
quality assurance or fail-safe, redundant or other safety features which exceed
the general specifications of the PRODUCTs are required. For details, please
contact the Mitsubishi representative in your region.
About Manuals
The following are manuals related to this product.
Request for the manuals as needed according to the chart below.
Detailed Manual
Manual Name Manual No.
(Model Code)
AJ65BT-68TD Thermocouple Temperature Input Module User's SH-3304
Manual (13JL52)
Related Manuals
Manual Name Manual No.
(Model Code)
CC-Link System Master/Local Module Type AJ61BT11/A1SJ61BT11 IB-66721
User's Manual (13J872)
CC-Link System Master/Local Module Type IB-66722
AJ61QBT11/A1SJ61QBT11 User's Manual (13J873)
CC-Link System Master/Local Module User's Manual SH-080394
(13JR64)
Type AnSHCPU/AnACPU/AnUCPU/QCPU-A (A Mode) Programming IB-66251
Manual (Dedicated Instructions) (13J742)
MELSEC-L CC-Link System Master/Local Module User's Manual SH-080895ENG
(13JZ41)
1. Overview
This user's manual explains the specifications, handling, programming
methods, etc. of the AJ65BT-68TD Thermocouple Input Module
(hereinafter referred to as AJ65BT-68TD) used as a remote device station
for the CC-Link system.
The AJ65BT-68TD is a module that converts the thermocouple input
values from outside the programmable controller to the temperature values
or scaling values of 16-bit signed BIN data.
2. EMC and Low Voltage Commands
(1) For programmable controller system
To configure a system meeting the requirements of the EMC and Low
Voltage Directives when incorporating the Mitsubishi programmable
controller (EMC and Low Voltage Directives compliant) into other machinery
or equipment, refer to the "EMC AND LOW VOLTAGE DIRECTIVES"
chapter of the User's Manual for the CPU module used.
The CE mark, indicating compliance with the EMC and Low Voltage
Directives, is printed on the rating plate of the programmable controller.
(2) For the product
For the compliance of this product with the EMC and Low Voltage
Directives, refer to the "CC-Link module" section in the "EMC AND
LOW VOLTAGE DIRECTIVES" chapter of the User's Manual for the
CPU module used.
3. Specification
3.1 Performance Specification
The performance specification of the AJ65BT-68TD are shown
below.
And, refer to master module user's manual which is used about the
general specification.
Item Specification
Temperature sensor input –200 to 1700°C
Detected 16-bit signed binary (–2000 to 17000 : value to one decimal
Output temperature place multiplied by 10)
Scaling value 16-bit signed binary (0 to 2000)
Applicable thermocouples and
temperature measurement Refer to Table 3.1
range accuracy *1
Cold junction compensation
± 1.0°C
accuracy
Overall accuracy By the calculation of *2
B, R, S : 0.3 °C K, E, J, T : 0.1 °C
Maximum resolution
Conversion speed
45 ms/ch
(sampling time)
Absolute maximum input ± 5 V
Number of analog input points 8-channel + Pt 100 connection channel
CC-Link station type Remote device station
4 Stations : RX/RY 128 points each
Number of occupied stations
RWw/RWr 16 points each
Item Specification
Connection cable CC-Link dedicated cable
Depends on noise simulator of noise voltage at 500Vp-p,
Noise durability
noise width at 1ms and noise frequency at 25 to 60 Hz
Between batch power supply system and ground
Between batch power supply system and batch
communication system
Dielectric withstand voltage Between batch communication system and batch
thermocouple input
Between batch thermocouple input and ground
500 V AC, 1 minute
Thermocouple input to CC-Link transmission
: Transfer insulation
Insulation method
Between channels : Transfer insulation
Between batch power supply system and ground
Between batch power supply system and batch
communication system
Between batch communication system and batch
Insulation resistor
thermocouple input
Between batch thermocouple input and ground
500 V DC, more than 10 M Ω by the insulation resistance
taster
Connected terminal block 27-point terminal blocks (M3.5 × 7 screws)
2
Applicable wire size 0.75 to 2.00 mm
Applicable solderless terminal RAV1.25-3.5, RAV2-3.5 (Conforms to JIS C 2805)
Screws M4 × 0.7 mm × 16 mm or larger (tightening torque range
Module mounting screw
78 to 118 N • cm {8 to 12 kg • cm})
May be attached using DIN rails
TH 35-7.5 Fe, TH 35-7.5 Al, TH 35-15 Fe
Applicable DIN rail
(conform to JIS C 2812)
External power supply 24 V DC (18 to 30 V DC)
Internal consumption current 0.081 A (at 24VDC)
Allowable momentary power
1 ms
failure period
Weight 0.40 (0.88) kg (lb.)
*1 : The thermocouple type can be set using the remote register
RY (n + 1) 0 to RY (n + 5) 6 for each channel.
*2 : Overall accuracy computation method is as follows:
(Overall accuracy) = (Conversion accuracy) + (Temperature
characteristics) × (Ambient operating temperature change) + (Cold
junction compensation accuracy)
The ambient operating temperature change refers to the value that falls
outside the range of 25 ±5 °C.
Example) The overall accuracy when using thermocouple K, measured
temperature 150 °C, ambient operating temperature 35 °C will be:
(± 0.5 °C) + (± 0.06 °C) × (5 °C) + (± 1 °C) = ± 1.8 °C