Mitsubishi AJ65BT-68TD User manual

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.
[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.
zCONDITIONS OF USE FOR THE PRODUCT z
(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;
yNuclear 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.
yRailway 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.
yAircraft 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.
(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
Output
Detected
temperature
16-bit signed binary (–2000 to 17000 : value to one decimal
place multiplied by 10)
Scaling value 16-bit signed binary (0 to 2000)
Applicable thermocouples and
temperature measurement
range accuracy *1
Refer to Table 3.1
Cold junction compensation
accuracy ± 1.0°C
Overall accuracy By the calculation of *2
Maximum resolution B, R, S : 0.3 °C K, E, J, T : 0.1 °C
Conversion speed
(sampling time) 45 ms/ch
Absolute maximum input ± 5 V
Number of analog input points 8-channel + Pt 100 connection channel
CC-Link station type Remote device station
Number of occupied stations 4 Stations : RX/RY 128 points each
RWw/RWr 16 points each
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".
WARNING Indicates that incorrect handling may cause hazardous
conditions, resulting in death or severe injury.
CAUTION Indicates that incorrect handling may cause hazardous
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.
[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
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
Manual
SH-3304
(13JL52)
Related Manuals
Manual Name Manual No.
(Model Code)
CC-Link System Master/Local Module Type AJ61BT11/A1SJ61BT11
User's Manual
IB-66721
(13J872)
CC-Link System Master/Local Module Type
AJ61QBT11/A1SJ61QBT11 User's Manual
IB-66722
(13J873)
CC-Link System Master/Local Module User's Manual SH-080394
(13JR64)
Type AnSHCPU/AnACPU/AnUCPU/QCPU-A (A Mode) Programming
Manual (Dedicated Instructions)
IB-66251
(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.
Item Specification
Connection cable CC-Link dedicated cable
Noise durability Depends on noise simulator of noise voltage at 500Vp-p,
noise width at 1ms and noise frequency at 25 to 60 Hz
Dielectric withstand voltage
Between batch power supply system and ground
Between batch power supply system and batch
communication system
Between batch communication system and batch
thermocouple input
Between batch thermocouple input and ground
500 V AC, 1 minute
Insulation method
Thermocouple input to CC-Link transmission
: Transfer insulation
Between channels : Transfer insulation
Insulation resistor
Between batch power supply system and ground
Between batch power supply system and batch
communication system
Between batch communication system and batch
thermocouple input
Between batch thermocouple input and ground
500 V DC, more than 10 M Ωby the insulation resistance
taster
Connected terminal block 27-point terminal blocks (M3.5 × 7 screws)
Applicable wire size 0.75 to 2.00 mm2
Applicable solderless terminal RAV1.25-3.5, RAV2-3.5 (Conforms to JIS C 2805)
Module mounting screw Screws M4 × 0.7 mm × 16 mm or larger (tightening torque range
78 to 118 N • cm {8 to 12 kg • cm})
May be attached using DIN rails
Applicable DIN rail TH 35-7.5 Fe, TH 35-7.5 Al, TH 35-15 Fe
(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
failure period 1 ms
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
AJ65BT-68TD
Thermocouple
Temperature Input Module
Mitsubishi General-Purpose Programmable Controlle
r
User’s Manual
(Hardware)
C 1996 MITSUBISHI ELECTRIC CORPORATION
Type AJ65BT68TD-U-HW-E
Type
Code 13JL49
IB(NA)-66830-G(1012)MEE

Table 3.1 Applicable thermocouples and temperature measurement range
accuracy
Applicable
thermocouple
type
Temperature
measurement
range [°C ]
Conversion accuracy
(When ambient
operating 25 ± 5 °C)
Temperature characteristic
(Per 1 °C of ambient operating
temperature change)
B 600 to 1700 ± 2.5 °C ± 0.4 °C
0 to 200 ± 0.4 °C
R
200 to 1600
± 2.0 °C
± 0.3 °C
0 to 200 ± 0.4 °C
S
200 to 1600
± 2.0 °C
± 0.3 °C
– 200 to 0 ±0.06 °C or ±0.3 % of the measured
temperature, whichever is greater
K
0 to 1200
±0.06 °C or ±0.02 % of the
measured temperature, whichever
is greater
– 200 to 0 ±0.06 °C or ±0.3 % of the measured
temperature, whichever is greater
E
0 to 800
±0.06 °C or ±0.02 % of the
measured temperature, whichever
is greater
J 0 to 750
±0.06 °C or ±0.02 % of the
measured temperature, whichever
is greater
– 200 to 0 ±0.06 °C or ±0.3 % of the measured
temperature, whichever is greater
T
0 to 350
±0.5 °C or ±0.25 % of
the measured
temperature, whichever
is greater
±0.06 °C or ±0.02 % of the
measured temperature, whichever
is greater
5. Handling
5.1 Handling Precautions
(1) Because it is made of resin, do not drop or given a strong shock to the
module case and the terminal block.
(2) Do not take the printed circuit board of the module out of the case. It
may result in a failure.
(3) Be careful not to let foreign matter such as filings or wire chips get
inside the module while wiring. Remove all foreign matters if any get
inside.
(4) Tighten the module mounting screws within the following torque range.
Screw area Tightening torque range
Module mounting screws (M4 screw) 0.78 to 1.18 N · m
Terminal block terminal screws (M3.5 screw) 0.59 to 0.88 N · m
Terminal block mounting screws (M3.5 screw) 0.98 to 1.37 N · m
(5) When using a DIN rail adapter, install the DIN rail considering the
precautions described below.
(a) Applicable DIN rail types (conform to JIS C 2812)
TH 35-7.5 Fe
TH 35-7.5 Al
TH 35-15 Fe
(b) Space between DIN rail mounting screws
When installing a DIN rail, tighten the screws with a space of less
than 200 mm (7.9 in.).
6.2 Precautions when Wiring
To obtain maximum performance from the functions of AJ65BT-68TD and
improve the system reliability, a wiring with high durability against noise is
required.
The following describes the external wiring precautions.
(1) Use separate cables for the AC and the external input signals of the
AJ65BT-68TD, in order not to be affected by the AC side surge or
conductivity.
(2) Always place a thermocouple at least 10 cm (3.94 in.) apart from the
main circuit line and AC control circuit line. Place a thermocouple
sufficiently apart from circuits with high frequency, such as high-voltage
lines and inverter load main circuits. If they are placed close to each
other, the thermocouple is influenced more easily by the noise, surge,
or conductivity.
7. External Dimensions Diagram
63(2.48)
9.5
(0.37)
NP
2- ø4.5 installing hole
56(2.2)
65(2.56)
MITSUBISHI AJ65BT-68TD X10 X1
STATION NO.B RATE
MODE OFFSET UP
SET
GAIN D OWN
RESET
PW
RUN
L RUN
SD
RD
L ERR.
MELSEC
012
3
4
012
3
4
5
6
012
3
4
5
6
7
89
012
3
4
5
6
7
89
SW
0
1-8
9
MODE
NORMAL
TEST CH.
TEST
142.9(5.63)
151.9 (5.98)
Unit: mm (in.)
4. Name of Each Part
The name of each part in the AJ65BT-68TD is described.
8)
MITSUBISHI AJ 65BT-68TD X10 X1
STATION NO.B RATE
MODE OFFSET UP
SET
GAIN DOWN
RESET
PW
RUN
L RUN
SD
RD
L ERR.
MELSEC
012
3
4
012
3
4
5
6
012
3
4
5
6
7
89
012
3
4
5
6
7
89
7) 3) 4)
5)
9)
2) 1)
6)
SW
0
1-8
9
MODE
NORMAL
TEST CH.
TEST
Number Name
1) Station setting switch
2) Transmission baud rate setting switch
3) Mode switch
4) Offset/gain setting switch
5) UP/DOWN switch
6) Reset switch
PW
RUN
L RUN
SD
RD
7) LED display
L ERR.
8) Terminal block
9) Temperature-measuring resistor Pt 100
6. Wiring
6.1 Wiring Example with Each CC-Link Modules
The following shows the connection between the AJ65BT-68TD and
master module using twisted cables.
DA
DB
DG
SLD
FG
DA
DB
DG
SLD
FG
DA
DB
DG
SLD
FG
Terminal
resistor
Terminal
resistor
Master module AJ65BT-68TD I/O module, etc.
CC-Link
dedicated cable
CC-Link
dedicated cable
(Blue)
(White)
(Yellow)
(Blue)
(White)
(Yellow)
(Blue)
(White)
(Yellow)
(Blue)
(Yellow)
(White)
Point
For the modules at both ends of the data link, make sure to connect the "terminal
resistor" that is attached to a master module (connect between DA and DB).
6.3 Example of Connecting Module
The following shows the wiring example between AJ65BT-68TD and
thermocouple.
RTD Input
amplifier
CH1
+
-Transformer
CH8
Pt100
*1
+
-
*2
Input
amplifier
Filter
Transformer
Input
amplifier
Filter
*1 Be sure to use the shielded compensating conductor for the cable.
*2 Be sure to ground.
Warranty
Mitsubishi will not be held liable for damage caused by factors found not to be the cause of Mitsubishi;
machine damage or lost profits caused by faults in the Mitsubishi products; damage, secondary damage,
accident compensation caused by special factors unpredictable by Mitsubishi; damages to products other
than Mitsubishi products; and to other duties.