Mitsubishi AJ65SBT-62DA User Manual

Digital-Analog Converter Module Type AJ65SBT-62DA User,s Manual
Mitsubishi Programmable Logic Controller
A - 1
SAFETY PRECAUTIONS
(Always read these precautions before using this equipment.)
Before using this product, please read this manual and the relevant manuals introduced in this manual carefully and pay full attention to safety to handle the product correctly. The precautions given in this manual are concerned with this product. Refer to the user's manual of the CPU module to use for a description of the PLC system safety precautions. In this manual, the safety instructions are ranked as "DANGER" and "CAUTION".
!
DANGER
CAUTION
!
Indicates that incorrect handling may cause hazardous conditions, resulting in death or severe injury.
Indicates that incorrect handling may cause hazardous conditions, resulting in medium or slight personal injury or physical damage.
Note that the !CAUTION level may lead to a serious consequence according to the circumstances. Always follow the precautions of both levels because they are important to personal safety.
Please save this manual to make it accessible when required and always forward it to the end user.
[Design Precautions]
!
DANGER
Configure a safety circuit so that the safety of the overall system is maintained even when an
external power error of PLC error occurs. Accident may occur due to output error or malfunctioning. (1) The status of analog output changes depending on the setting of various functions that
control the analog output. Take sufficient caution when setting for those functions. For details of analog output status, refer to Section 3.4.1 "
Combinations of functions in each
part
"
(2) Normal output may not be obtained due to malfunctions of output elements or the internal
circuits. Configure a circuit to monitor signals which may lead to a serious accident.
!
CAUTION
Do not bunch the control wires or communication cables with the main circuit or power wires, or
install them close to each other. They should be installed 100mm (3.9inch) or more from each other. Not doing so could result in noise that would cause erroneous operation.
At power ON/OFF, voltage or current may instantaneously be output from the output terminal of
this module. In such case, wait until the analog output becomes stable to start controlling the external device.
A - 2
[Installation Precautions]
!
CAUTION
Use the module in the environment that meets the general specifications contained in this
Manual. Using the module outside the range of the general specifications may result in electric shock, fire or malfunction, or may damage or degrade the module.
Securely fix the module to a DIN rail or with mounting screws, and securely tighten the mounting
screws within the specified torque range. Undertightening can cause a drop or malfunction. Overtightening can cause a drop or malfunction due to damage of the screws or module.
Do not touch the conducted area or electric parts of the module.
Doing so may cause module malfunction or breakdowns.
[Wiring Precautions]
!
CAUTION
Be sure to shut off all phases of the external power supply used by the system before installation
or wiring. Not doing so can cause the product to be damaged or malfunction.
Always earth the FG terminal to the protective earth conductor.
Not doing so can cause a malfunction.
Be sure to tighten any unused terminal screws within a tightening torque range (42 to 50N.cm).
Failure to do so may cause a short circuit due to contact with a solderless terminal.
Use applicable solderless terminals and tighten them with the specified torque.
If any solderless spade terminal is used, it may be disconnected when the terminal screw comes loose, resulting in failure.
Wire the module correctly after confirming the rated voltage and terminal layout of the product.
Not doing so can cause a fire or failure.
Tighten the terminal screws within the specified torque range.
Undertightening can cause a short circuit or malfunction. Overtightening can cause a short circuit or malfunction due to damage of the screws or module.
Ensure that no foreign matter such as chips and wire-offcuts enter the module.
Foreign matter can cause a fire, failure or malfunction.
Be sure to fix the wires or cables by ducts or clamps when connecting them to the module.
Failure to do so may cause damage of the module or the cables due to accidental pull or unintentional shifting of the cables, or malfunctions due to poor contact of the cable.
A - 3
[Wiring Precautions]
!
CAUTION
Do not install the control lines together with the communication cables, or bring them close to
each other. Failure to do so may cause malfunctions due to noise.
When disconnecting the cables from the module, do not hold and pull the cable part.
Disconnect the cables after loosening the screws in the portions connected to the module. Pulling the cables connected to the module can damage the module and cables or can cause a malfunction due to a cable connection fault.
[Starting and Maintenance Precautions]
!
CAUTION
Do not touch the terminals while the power is on. Doing so may cause malfunction.
Be sure to shut off all phases of the external power supply used by the system before cleaning
or retightening the terminal screws. Not doing so can cause the module to fail or malfunction. Undertightening can cause a drop, short circuit or malfunction. Overtightening can cause a drop, short circuit or malfunction due to damage of the screws or module.
Never disassemble or modify the module.
This may cause breakdowns, malfunction, injury and/or fire.
Do not drop or apply any strong impact to the module. Doing so may damage the module.
Be sure to shut off all phases of the external power supply used by the system before mounting
or dismounting the module to or from the panel. Not doing so can cause the module to fail or malfunction.
Do not install/remove the terminal block more than 50 times after the first use of the product.
(IEC 61131-2 compliant)
Before handling the module, always touch grounded metal, etc. to discharge 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.
A - 4
REVISIONS
* The manual number is given on the bottom left of the back cover.
Print Date * Manual Number Revision
Oct., 2000 SH (NA)-080107-A First printing
Mar., 2005 SH (NA)-080107-B Program example correction
Addition
Section 2.3
Correction
SAFETY PRECAUTIONS, About Manuals, Conformation to the EMC Directive and Low Voltage Instruction, Chapter 1, Section 2.1, 2.2, 3.1,
3.4.1, 3.6.5, 4.2, 4.7.2, 6.2, Appendix 2
Mar., 2006 SH (NA)-080107-C
Correction
REVISIONS, Conformation to the EMC Directive and Low Voltage Instruction, Section 2.3
Oct., 2006 SH (NA)-080107-D
Correction
SAFETY PRECAUTIONS, Section 4.3, Appendix 2
Japanese Manual Version SH-080088-E
This manual confers no industrial property rights or any rights of any other kind, nor does it confer any patent licenses. Mitsubishi Electric Corporation cannot be held responsible for any problems involving industrial property rights which may occur as a result of using the contents noted in this manual.
© 2000 MITSUBISHI ELECTRIC CORPORATION
A - 5
INTRODUCTION
Thank you for choosing the Mitsubishi MELSEC-A series general-purpose programmable controller. Before using the product, please read this manual carefully to use it to its optimum.
CONTENTS
SAFETY PRECAUTIONS..............................................................................................................................A- 1
REVISIONS....................................................................................................................................................A- 4
INTRODUCTION............................................................................................................................................A- 5
About Manuals ...............................................................................................................................................A- 7
Conformation to the EMC Directive and Low Voltage Instruction ................................................................A- 7
About the Generic Terms and Abbreviations ................................................................................................A- 8
Product Components ............................................................................................................. ........................A- 9
1. OVERVIEW 1- 1 to 1- 2
1.1 Features ...................................................................................................................................................1- 1
2. SYSTEM CONFIGURATION 2- 1 to 2- 2
2.1 Overall Configuration ...............................................................................................................................2- 1
2.2 Applicable System....................................................................................................................................2- 2
2.3 Checking Hardware Versions..................................................................................................................2- 2
3 SPECIFICATION 3- 1 to 3- 16
3.1 General Specification...............................................................................................................................3- 1
3.2 Performance Specification.......................................................................................................................3- 2
3.3 I/O Conversion Characteristics................................................................................................................3- 3
3.3.1 Voltage output characteristics...........................................................................................................3- 4
3.3.2 Current output characteristics...........................................................................................................3- 5
3.3.3 Relationship between offset/gain setting and analog output value .................................................3- 6
3.3.4 Accuracy............................................................................................................................................3- 6
3.3.5 Conversion speed ......................................................................................................... ....................3- 7
3.4 Function....................................................................................................................................................3- 8
3.4.1 Combinations of various functions....................................................................................................3- 9
3.5 Remote I/O Signals.................................................................................................................................3- 10
3.5.1 Remote I/O signal list.......................................................................................................................3- 10
3.5.2 Functions of the remote I/O signals.................................................................................................3- 11
3.6 Remote Register.....................................................................................................................................3- 13
3.6.1 Allocation of the remote register......................................................................................................3- 13
3.6.2 CH.
digital value setting (Addresses RWwm, RWwm+1) .........................................................3- 14
3.6.3 Analog output enable/disable setting (Address RWwm+2)............................................................3- 14
3.6.4 Output range/HOLD/CLEAR setting (Address RWwm+3) .............................................................3- 15
3.6.5 CH.
check code (Addresses RWrn, RWrn+1) ............................................................................3- 16
3.6.6 Error code (Address RWrn+2).........................................................................................................3- 16
A - 6
4 SETUP AND PREPARATION BEFORE OPERATION 4- 1 to 4- 10
4.1 Pre-Operation Procedure.........................................................................................................................4- 1
4.2 Precautions When Handling .................................................................................................................... 4- 1
4.3 Name of Each Part...................................................................................................................................4- 3
4.4 Offset/Gain Setting...................................................................................................................................4- 5
4.5 Section Number Setting...........................................................................................................................4- 7
4.6 Facing Direction of the Module Installation .............................................................................................4- 7
4.7 Data Link Cable Wiring ............................................................................................................................ 4- 8
4.7.1 Instructions for handling the CC-Link dedicated cables...................................................................4- 8
4.7.2 Connection of the CC-Link dedicated cables...................................................................................4- 8
4.8 Wiring........................................................................................................................................................4- 8
4.8.1 Wiring precautions.............................................................................................................................4- 8
4.8.2 Wiring of module with external equipment ....................................................................................... 4- 9
4.9 Maintenance and Inspection....................................................................................................................4- 9
5 PROGRAMMING 5- 1 to 5- 14
5.1 Programming Procedure..........................................................................................................................5- 1
5.2 Conditions of Program Example..............................................................................................................5- 2
5.3 Program Example for Use of the QCPU (Q mode)................................................................................. 5- 4
5.4 Program Example for Use of the QnACPU............................................................................................. 5- 8
5.5 Program Example for Use of the ACPU/QCPU (A mode) (dedicated instructions) .............................5- 10
5.6 Program Example for Use of the ACPU/QCPU (A mode) (FROM/TO instructions) ............................5- 13
6 TROUBLESHOOTING 6- 1 to 6- 6
6.1 Error Code List.........................................................................................................................................6- 1
6.2 Using the LED Indications to Check Errors.............................................................................................6- 2
6.3 Troubleshooting for the Case where the “ERR.” LED of the Master Station Flickers ...........................6- 4
APPENDIX Appendix- 1 to Appendix- 4
Appendix1 Comparison between This Product and Conventional Product....................................Appendix- 1
Appendix2 External Dimensions.......................................................................................................Appendix- 3
INDEX Index- 1 to Index- 3
A - 7
About Manuals
The following manuals are also related to this product. In necessary, order them by quoting the details in the tables below.
Related Manuals
Manual Name
Manual Number
(Model Code)
CC-Link System Master/Local Module User's Manual Type AJ61BT11/A1SJ61BT11
Describes the system configuration, performance specifications, functions, handling, wiring and
troubleshooting of the AJ61BT11 and A1SJ61BT11. (Optionally available)
IB-66721
(13J872)
CC-Link System Master/Local Module User's Manual Type AJ61QBT11/A1SJ61QBT11
Describes the system configuration, performance specifications, functions, handling, wiring and
troubleshooting of the AJ61QBT11 and A1SJ61QBT11. (Optionally available)
IB-66722
(13J873)
CC-Link System Master/Local Module User's Manual QJ61BT11N
Describes the system configuration, performance specifications, functions, handling, wiring and
troubleshooting of the QJ61BT11. (Optionally available)
SH-080394E
(13JR64)
type AnSHCPU/AnACPU/AnUCPU/QCPU-A (A mode) Programming Manual (Dedicated Instructions)
Explains the instructions extended for the AnSHCPU/AnACPU/AnUCPU/ QCPU-A (A mode).
(Optionally available)
IB-66251
(13J742)
Conformation to the EMC Directive and Low Voltage Instruction
When incorporating a Mitsubishi PLC that is compliant with the EMC and low voltage directives into any other product and ensuring compliance with these directives, refer to Chapter 3 "EMC and Low Voltage Directives" of the User's Manual (Hardware) for the PLC CPU included with the CPU module or base unit. A module compliant with the EMC and low voltage directives bears a CE mark logo printed on the rating plate. To make this product compliant with the EMC and low voltage directives, refer to "CC­Link module" in Chapter 3 "EMC and Low Voltage Directives" of the User's Manual (Hardware) for the CPU module.
A - 8
About the Generic Terms and Abbreviations
Unless otherwise specified, the following generic terms and abbreviations are used in this manual to describe Type AJ65SBT-62DA digital-analog conrerter module.
Generic Term/Abbreviation Description
GX Developer
Generic product name of the product types SWnD5C-GPPW-E, SWnD5C-GPPW-EA, SWnD5C-GPPW-EV and SWnD5C-GPPW-EVA. ("n" in the model name is 4 or greater.)
ACPU
Generic term for A0J2CPU, A0J2HCPU, A1CPU, A2CPU, A2CPU-S1, A3CPU, A1SCPU, A1SCPU-S1, A1SCPUC-24-R2, A1SHCPU, A1SJCPU, A1SJCPU-S3, A1SJHCPU, A1NCPU, A2NCPU, A2NCPU-S1, A3NCPU, A3MCPU, A3HCPU, A2SCPU, A2SCPU-S1, A2SHCPU, A2ACPU, A2ACPU-S1, A3ACPU, A2UCPU, A2UCPU-S1, A2ASCPU, A2ASCPU-S1, A2ASCPU-S30, A2USHCPU-S1, A3UCPU, A4UCPU
QnACPU
Generic term for Q2ACPU, Q2ACPU-S1, Q2ASCPU, Q2ASCPU-S1, Q2ASHCPU, Q2ASHCPU-S1, Q3ACPU, Q4ACPU, Q4ARCPU
QCPU (A mode) Generic term for Q02CPU-A, Q02HCPU-A, Q06HCPU-A QCPU (Q mode)
Generic term for Q00JCPU, Q00CPU, Q01CPU, Q02CPU, Q02HCPU, Q06HCPU, Q12HCPU, Q25HCPU, Q12PHCPU, Q25PHCPU
Master station
Station that controls the data link system. One master station is required for each system.
Local station
Station having a PLC CPU and the ability to communicate with the master and ot her local stations.
Remote I/O station
Remote station that handles bit unit data only. (Performs input and output w ith ex ternal devices.) (AJ65BTB1-16D, AJ65SBTB1-16D)
Remote device station
Remote station that handles bit unit and word unit data only. (Performs input and output with external devices, and analog data exchange.)
Remote station
Generic term for remote I/O station and remote device station. (Controlled by the master station)
Intelligent device station
Station that can perform transient transmission, such as the AJ65BT- R2 (including lo cal stations).
Master module
Generic term for QJ61BT11N, QJ61BT11, AJ61BT11, A1SJ61BT11, AJ61QBT11, and A1SJ61QBT11 when they are used as master stations.
SB
Link special relay (for CC-Link) Bit unit information that indicates the module operating status and data lin k status of the master station/local station. (Expressed as SB for convenience)
SW
Link special register (for CC-Link) 16 bit unit information that indicates the module operating status and data l ink status of the master station/local station. (Expressed as SW for convenience)
RX
Remote input (for CC-Link) Information entered in bit units from the remote station to the master station. (Expressed as RX for convenience)
RY
Remote output (for CC-Link) Information output in bit units from the remote station to the master station. (Expressed as RY for convenience)
RWw
Remote register (Write area for CC-Link) Information output in 16-bit units from the master station to the remote device st ation. (Expressed as RWw for convenience)
RWr
Remote register (Read area for CC-Link) Information entered in 16-bit units from the master station to the remote device station. (Expressed as RWr for convenience)
A - 9
Product Components
This product consists of the following.
Product Name Quantity
Type AJ65SBT-6 2DA dig i tal - analog conve rte r mod ul e
1
Type AJ65SBT-6 2DA dig i tal - analog conve rte r mod ul e u ser' s manual (hardware)
1
A - 10
MEMO
1 - 1
MELSEC-A
1 OVERVIEW
1
1 OVERVIEW
This user's manual explains the specifications, handling, programming methods and others of Type AJ65SBT-62DA digital-analog converter module (hereafter abbreviated to the "AJ65SBT-62DA") which is used as a remote device station of a CC-Link system. The AJ65SBT-62DA is a module designed to convert digital values (16-bit signed BIN data) from outside the PLC into analog values (voltages or currents).
1.1 Features
This section gives the features of the AJ65SBT-62DA.
(1) High accuracy
This module performs D/A conversion at the accuracy of ±0.4% relative to the maximum value of the analog output value at the operating ambient temperature of 0 to 55°C, o r at ±0 .2 % rel a tiv e to th e max i mu m va lu e o f th e a nalog ou tp ut value at the operating ambient temperature of 25±5°C.
(2) Output range selectable per channel
You can choose the analog output range per channel to change the I/O conversion charac terist i cs.
(3) High resolution of 1/±4000
By changing the output range, you can choose and set the resolution to either 1/4000 or 1/±40 00 (w h en th e - 10 to +10V ra ng e o r use r rang e se tt in g 1 i s selected) to provi de high - resol u tio n analog values.
(4) Setting of analog output hold or clear at STOP of P LC C PU
You can specify whether to hold or clear the analog value which is being output from each chan ne l o f the un it wh en the PL C CP U ha s e nte red th e S TOP mode or the AJ65SBT-62DA has stopped D/A conversion due to error occurrence.
(5) Smaller than the conventional D /A conv er ter modul e
This module is 60% smaller in installation area and 38% less in volume than the conventional CC- Link D/ A co nve rt e r modul e (AJ65B T-6 4 DAV/ DA I).
(6) Up to 42 modules connectable
You can connect up to 42 AJ65SBT-62DA modules to one master station.
1 - 2
MELSEC-A
1 OVERVIEW
MEMO
2 - 1
MELSEC-
A
2 SYSTEM CONFIGURATION
2
2 SYSTEM CONFIGURATION
This chapter describes the system configuration for use of the AJ65SBT-62DA.
2.1 Overall Configuration
The overall configuration for use of the AJ65SBT-62DA is shown below.
CC-Link master/local module (local station) (AJ61BT11, A1SJ61BT11, AJ61QBT11, A1SJ61QBT11,
(Remote device station) 1 station occupied RX/RY: 32 points each RWr/RWw: 4 points each
CC-Link master/local module (master station) (AJ61BT11, A1SJ61BT11, AJ61QBT11,
A1SJ61QBT11, QJ61BT11, QJ61BT11N)
CC-Link dedicated cable
(Intelligent device station)
QJ61BT11, QJ61BT11N)
(Remote I/O station)
AJ65SBT-62DA (Remote device station)
Object to which
voltage/current
will be output
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MELSEC-
A
2 SYSTEM CONFIGURATION
2.2 Applicable System
This section explains the applicable system.
(1) Applicable master modules
The following master modules can be used with the AJ65SBT-62DA.
AJ61BT11 A1SJ61BT11 AJ61QBT11 A1SJ61QBT11 QJ61BT11 QJ61BT11N
(2) Restrictions on use of CC-Link dedicated instructions (RLPA,
RRPA)
The CC-Link dedicated instructions may not be used depending on the PLC CPU or master module used For details of the restrictions, refer to the A series master module user's manual, and the Programing Manual type AnSHCPU/AnACPU/AnUCPU/QCPU (A mode) (Dedicated Instructions). This module does not allow the use of the dedicated instructions other than RLPA and RRPA. Refer to Section 5.5 for a program example using the dedicated instructions (RLPA, RRPA).
2.3 Checking Hardware Versions
The hardware versions of the AJ65SBT-62DA can be checked on the DATE section on the rating plate, which is situated on the side of the module.
MODEL
POWER
DATE
MADE IN JAPAN
BD992C154H06
Year and month of manufacture
Software version
Conformed standard
Hardware version
yymm
A B
3 - 1
MELSEC-A
3 SPECIFICATION
3
3 SPECIFICATION
This chapter provides the specifications of the AJ65SBT-62DA.
3.1 General Specification
Table 3.1 indicates the general specifications of the AJ65SBT-62DA.
Table 3.1 General specification
Item Specification Usage ambient temperature 0 to 55°C Storage ambient temperature -20 to 75°C Usage ambient humidity 10 to 90%RH, no condensation Storage ambient humidity 10 to 90%RH, no condensation
When there is intermittent vibration
Frequency Acceleration Amplitude Sweep count 10 to 57Hz
0.075mm
(0.0030inch)
57 to 150Hz 9.8m/s
2
When there is continuous vibration
Frequency Acceleration Amplitude 10 to 57Hz
0.035mm
(0.0013inch)
Vibration durability
Conforming to JIS B
3502, IEC 61131-2
57 to 150Hz 4.9m/s
2
10 times in each direction
X, Y, Z (80 minutes)
Shock durability Conforming to JIS B 3502, IEC 61131-2 (147m/s2, 3 times each in 3 directions) Usage environment No corrosive gas Usage height *
3
Less than 2000 m (less than 6562 ft.) Installation area Within the control board Over-voltage category *
1
Less than II
Pollution level *
2
Less than 2
*1 Indicates the location where the device is connected from the public cable network to the device structure wiring
area. Category II applies to the devices to which the power is supplied from a fixed equipment. Surge withstand voltage for devices with up to 300V of rated voltage is 2500V.
*2 This is an index which indicates the degree of conductive object generation in the environment Pollution level 2 is
when only non-conductive pollution occurs. A temporary conductivity caused by condensation must be expected occasionally.
*3 Do not use or store the PLC under pressure higher than the atmospheric pressure of altitude 0m.
Doing so can cause a malfunction. When using the PLC under pressure, please contact your sales representative.
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MELSEC-A
3 SPECIFICATION
3.2 Performance Specification
Table 3.2 indicates the performance specifications of the AJ65SBT-62DA.
Table 3.2 Performance Specifications
Item AJ65SBT-62DA
Voltage 16-bit signed binary (-4096 to +4095)
Digital input
Current 16-bit signed binary (0 to 4095) Voltage -10 to +10VDC (external load resistance: 2k to 1M )
Analog output
Current 0 to 20mADC (external load resistance: 0 to 600
)
Accuracy
Digital Input
Value
Analog Input Range
Ambient
temperature
0 to 55°C
Ambient
temperature
25±5°C
Max.
Resolution
-10 to +10V
-4000 to +4000
User range setting 1
(-10 to +10V)
±0.4%
(±40mV)
±0.2%
(±20mV)
2.5mV
0 to 5V 1.25mV 1 to 5V
Voltage
0 to 4000
User range setting 2
(0 to 5V)
±0.4%
(±20mV)
±0.2%
(±10mV)
1.0mV
0 to 20mA 5µA 4 to 20mA
Current 0 to 4000
User range setting 3
(0 to 20mA)
±0.4%
(±80µA)
±0.2%
(±40µA)
4µA
I/O characteristi cs , maximum resolution, a ccu r a cy (accuracy relative to maximum value of analog output value)
Factory setting is -10 to +10V.
Maximum conversion speed 1ms/1 channel Output short-circuit protection Yes Absolute maximum output Voltage: ±12V, Current +21mA Number of analog output points 2 channels/1 module CC-Link station type Remote device station Number of occupied stations 1 station (RX/RY: 32 points each, RWr/RWw: 4 points each) Communication cable CC-Link dedicated cable
Dielectric withstand voltage
500VAC for 1 minute across all power supply and communication system terminals and all
analog output terminals
Isolation system
Across communication system terminals and all analog output terminals: Photocoupler isolated
Across power supply system terminals and all analog output terminals: Photocoupler isolated
Across channels: Non-isolated
Noise immunity By noise simulator of 500Vp-p noise voltage, 1µs noise width and 25 to 60Hz noise frequency
Communication area, module power supply
7-point 2-piece terminal block [transmission circuit, module power supply, FG]
M3 x 5.2 Tightening torque: 59 to 88N·cm
Applicable solderless terminals: 2 max.
External connection
I/O area
Direct-coupled, 18-point terminal block [analog output area]
M3 x 5.2 Tightening torque: 59 to 88N·cm
Applicable solderless terminals: 2 max.
Applicable wire size 0.3 to 0.75mm
2
Applicable solderless terminals
RAV1.25-3 (conforming to JIS C 2805)
[Applicable wire siz e :0 .3 to 1.25mm
2
]
V2-MS3, RAP2-3SL, TG V2 - 3 N
[Applicable wire size: 1.25 to 2.0mm
2
]
Module mounting screw
M4 screw × 0.7mm × 16mm or more (tightening torque range: 78 to 108N
cm)
Can also be mounted to DIN rail
Applicable DIN rail TH35-7.5Fe, TH35-7.5Al (conforming to IEC 60715)
24V DC (20.4V DC to 26.4V DC)
Inrush current: 8.2A, within 2.1ms
External power supply
Current consumption: 0.16A
Weight 0.20kg
3 - 3
MELSEC-A
3 SPECIFICATION
3.3 I/O Conversion Characteristics
An I/O conversion characteristic indicates an inclination of a straight line which connects an offset value and a gain value at the time when a digital value set from the PLC CPU is converted into an analog value (voltage or current output). The offset value is an analog value (voltage or current) output when the digital value set from the PLC CPU is 0. The gain value is an analog value (voltage or current) output when the digital value set from the PLC CPU is 4000.
3 - 4
MELSEC-A
3 SPECIFICATION
3.3.1 Voltage output characteristics
The voltage output characteristic graph is shown below.
Analog output value (V)
Digital input value
3
2
1
409540002000-2000-4000-4096
-10
-5
0
5
10
Practical analog output scope
0
1
Number Analog Output Range Setting Offset Value Gain Value Digital Input Value Maximum Resolution
1) -10 to +10v 0V 10V -4000 to +4000 2.5mV
2) 0 to 5V 0V 5V 1.25mV
3) 1 to 5V 1V 5V
0 to 4000
1.0mV
User range setting 1
(-10 to +10v)
0V 10V -4000 to +4000 2.5mV
User range setting 2
(0 to 5v)
0V 5V 0 to 4000 1.0mV
Fig. 3.1 Voltage Output Characteristic
POINT
(1) Within the digital input and analog output scopes of each output range, the
maximum resolution and accuracy are within the performance specification range. Outside those scopes, however, they may not fall within the performance specification range. (Avoid using the dotted line part in Fig. 3.1.)
(2) Set the offset and gain values of the user range setting within the range
satisfying the fol low i ng condit io n s. (a) Setting range wh en use r rang e se tt in g 1 is sele ct ed : -1 0 to + 10V (b) Setting range wh en us er rang e se tt in g 2 i s sele ct ed : 0 to 5V (c) (Gain value) > (Offset value)
If you attempt to make setting outside the setting range of (a) or (b), the "RUN" LED flickers at 0.5s intervals. Set the values within the setting range. If you attempt to make setting outside the setting range of (c), the "RUN" LED flickers at 0.5s intervals. Make setting again .
3 - 5
MELSEC-A
3 SPECIFICATION
3.3.2 Current output characteristics
The current output characteristic graph is shown below.
Analog output value (mA)
Digital input value
1
2
409540000
0
5
10
15
20
Practical analog output scope
2000
4
Number Analog Output Range Setting Offset Value Gain Value Digital Input Value Maximum Resolution
1) 0 to 20mA 0mA 20mA 5µA
2) 4 to 20mA 4mA 20mA —
User range setting 3
(0 to 20mA)
0mA 20mA
0 to 4000
4µA
Fig. 3.2 Current Output Characteristic
POINT
(1) Within the digital input and analog output scopes of each output range, the
maximum resolution and accuracy are within the performance specification range. Outside those scopes, however, they may not fall within the performance specification range. (Avoid using the dotted line part in Fig. 3.2.)
(2) Set the offset and gain values of the user range setting within the range
satisfying the fol low i ng condit io n s. (a) Setting range wh en us er rang e se tt in g 3 i s sele ct ed : 0 to 20 mA (b) (Gain value) > (Offset value)
If you attempt to make setting outside the setting range of (a), the "RUN" LED flickers at 0.5s intervals. Set the values within the setting range. If you attempt to make setting outside the setting range of (b), the "RUN" LED flickers at 0.5s intervals. Make setting again .
3 - 6
MELSEC-A
3 SPECIFICATION
3.3.3 Relationship between offset/gain setti ng and anal og output v al ue
How to calculate the analog output value: The resolution of AJ65SBT-62DA can be set arbitrarily by modifying the setting of the offset value and gain value. How to calculate the analog value resolution and the analog output value for a given digital input value when the settings of the offset value and gain value are changed is shown next.
(1) Resolution
Find the resolu ti on wi th the fo llow i ng exp r e ssi on .
(Gain value) - (Offset value)
(Analog resolution) =
4000
(2) Analog output value
Find the analog out put valu e wi th th e following expressio n.
(Analog output) = (Analog resolution) × (Digital input value) + (Offset value)
3.3.4 Accuracy
Accuracy is relative to the maximum value of the analog output value. If you change the offset/gain setting or output range to change the output characteristic, accuracy does not change and is held within the range indicated in the performance specifications.
(1) Accuracy of voltage output
For voltage output, the maximum value of the analog output value changes with the range. For example, accuracy is relative to 5V when the 0 to 5V range is selected. Analog output is provided at the accuracy of within ±0.2% (±10mV) when the operating ambient temperature is 25±5°C, or within ±0.4% (±20mA) when the operating ambient temperature is 0 to 55°C.
0V
04000
Di
g
ital input value
Varies within the range of
0.2% ( 10mV) at operating ambient temperature of 25 5 .
5V
Analog output voltage
Varies within the range of
0.4% ( 20mV) at operating ambient temperature of 0 to 55 .
Fig. 3.3 Voltage Output Accuracy (When 0 to 5V Rang e Is Sel ected)
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