Mitsubishi A8GT-50KBF User Manual
A8GT-50KBF
External I/O Interface Module
User’s Manual
(Hardware)
Thank you for choosing the MELSEC-GOT Series.
To ensure correct use of this equipment, please read this manual
carefully before operating it.
MODEL A8GT-50KBF-U
MODEL
CODE
1DM053
IB(NA)-68908-C(0406)MEE
MITSUBISHI Graphic Operation Terminal
A-1
DANGER
CAUTION
!
SAFETY PRECAUTIONS
!
(Always read before starting use)
When using Mitsubishi equipment, thoroughly read this manual and the
associated manuals introduced in the manual. Also pay careful attention to
safety and handle the module properly.
These precautions apply only to the installation of Mitsubishi equipment and the
wiring with the external device. Refer to the user’s manual of the CPU module
to be used for a description of the PLC system safety precautions.
These
SAFETY PRECAUTIONS classify the safety precautions into two
categories: "DANGER" and "CAUTION".
Procedures which may lead to a dangerous condition and
cause death or serious injury if not carried out properly.
Procedures which may lead to a dangerous condition and
cause superficial to medium injury, or physical damage
only, if not carried out properly.
Depending on circumstances, procedures indicated by
CAUTION
may also
be linked to serious results.
In any case, it is important to follow the directions for usage.
Store this manual in a safe place so that you can take it out and read it
whenever necessary. Always forward it to the end user.
[DESIGN PRECAUTIONS]
DANGER
!
Some faults of the GOT, this unit or connection cables may keep the
outputs on or off.
An external monitoring circuit should therefore be provided to check for
output signals which may lead to a serious accident.
Otherwise, mis-output or misoperation can cause an accident.
A-2
[INSTALLATION PRECAUTIONS]
DANGER
!
When installing and removing this module from the GOT main module be
sure to shut off the power at all external switches. If all the switches are not
turned off, the module could be damaged or malfunction.
!
When connecting the bus connection cable to this module be sure to turn
off the switch to all external power switches to the GOT and PC CPU. If all
the switches are not turned off, it may cause malfunction.
CAUTION
!
Use this module in an environment that is within the general specifications
written in the GOT User's Manual. If the power supply is used in an
environment that is outside of the general specifications then electric
shock, fire, malfunction, or product damage or degradation could occur.
!
For a correct installation, insert the bus connection cable to this module,
A7GT-BUS2S, bus connector conversion module, and base unit connector
until you hear it click.
A bad connection could cause erroneous input or output.
!
When installing this module in the GOT main module, install it in the GOT
installation area and be sure it is fastened with a module fastening screw
that is tightened within the specified torque range.
If the module fixing screws are loosen, it may cause malfunction, damage
or falling of the module.
If the module fixing screws are too tight, the GOT main module or the
screws could break.
[Wiring Instructions]
DANGER
!
Before starting wiring, always switch off all phases of the power supply
externally.
CAUTION
!
During wiring, care should be taken so that foreign matter such as shield
and wire offcuts do not enter this unit.
Otherwise, a fire, fault or misoperation can occur.
A-3
[STARTING AND MAINTENANCE PRECAUTIONS]
DANGER
!
Do not change the switch setting while power is on.
!
Switch all phases of the GOT external power supply off before cleaning.
Not doing so could result in electric shock.
CAUTION
!
Never disassemble or modify the module. This may cause breakdowns,
malfunctioning, injury, and/or fire.
!
Do not directly touch the conducted area and electric parts of this module.
It may cause damage and malfunctioning of the module.
!
This module is made of resinous materials, and should be protected from
strong shock or impact. It may cause breakdown.
!
When disconnecting the communication or power cable from the module,
do not hold and pull the cable part.
When disconnecting the cable having a connector, hold the connector
plugged in the module.
Before disconnecting the cable having no connector, loosen the screws in
the module.
If the cable connected to the module is pulled, the module or cable may be
damaged or a malfunction may occur due to a cable connection fault.
!
Before handling the unit, touch a grounded metal or similar object to
discharge the static electricity from the human body.
Failure to do so may cause the unit to fail or mulfunction.
[DISPOSAL PRECAUTIONS]
CAUTION
!
When disposing of this product, treat it as industrial waste.
A-4
Revisions
* The manual number is noted at the lower left of the back cover.
Print Date *Manual Number Revision
Jun., 1997 IB(NA)-68908-A First printing
May, 2001 IB(NA)-68908-B
Partial correction
Chapter 1, Chapter 3, Chapter 4,
Chapter 5, Chapter 7
Jun., 2004 IB(NA)-68908-C
Partial correction
SAFETY PRECAUTION, Manuals
MODEL CODE change
Changed from 13JL17 to 1DM053
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.
1997 MITSUBISHI ELECTRIC CORPORATION
A-5
CONTENTS
1. Overview........................................................................................................1
2. Components Including in the Package ..........................................................1
3. Specifications ................................................................................................2
4. System configuration.....................................................................................7
5. User-fabricasted connection cables...............................................................9
5.1 Connection cable ....................................................................................9
5.2 Wiring diagrams ....................................................................................13
6. Parts Identifcation........................................................................................17
7. Installation Procedure.................................................................................. 18
8. Outline Dimension Drawing......................................................................... 19
Manuals
The following manuals are relevant to this product.
Refer to the following list and order the required manuals.
Relevant Manuals
Manual name
Manual No.
(Model code)
A8GT-TK type Numeric Keypad Panel User's Manual
(Found in the packing of the A8GT-TK)
IB-66832
(1DM094)
GOT-A900 Series User's Manual (GT Works Version5/GT
Designer Version5 compatible connection Sysytem
Manual)
(Available as option)
SH-080119
(1DM189)
SW3NIW-A8GOTP Graphic Settings Software Package
Operating Manual (Monitor Screen Creation Manual)
(Found in the packing of the software package)
IB-66793
(1DM176)
1
1. Overview
This user's manual gives the specifications, system configurations, parts
identifi-cation, installation procedure and outline dimensions of the A8GT50KBF type external I/O unit (referred to as the external I/O unit).
The external I/O unit is fitted to the A956WGOT/A95*GOT/A85*GOT (referred
to as the GOT) to receive up to 8/64 points of inputs and provide up to 16
points of outputs.
Lamp, relay, etc.
Connector terminal
block conversion unit
Operation panel, pushbutton,
numeric keypad panel, etc.
DC power supply 12/24V
External
I/O module
GOT
2. Components Including in the Package
After opening the container, check that the following products are present.
Description Quantity
External I/O unit 1
External connector (soldered type) 1
2
3. Specifications
Input Specifications
Input system Dynamic scan
Number of input points 8/64 points
Isolation system Photocoupler isolation
Rated input voltage 12VDC 24DVC
Rated input current Approx. 4mA Approx. 9mA
Operating voltage range 10.2 to 26.4VDC (ripple percentage within 5%)
Max. number of
simultaneous input points
100% simultaneous ON (at 26.4VDC)
ON voltage/ON current 8VDC or more/2mA or more
OFF voltage/OFF current 4VDC or less/1mA or less
Input resistance
Approx. 2.4K
Ω
ON to OFF Approx. 0.4ms or less (24VDC)
Response
time *1
OFF to ON Approx. 0.4ms or less (24VDC)
Dynamic scan cycle 13.3ms
Output Specifications
Output system Direct
Number of output points 16 points
Isolation system Photocoupler isolation
Rated load voltage 12/24DVC
Max. load current*4 0.1A/1 point
Operating load voltage
range
10.2 to 26.4VDC (ripple percentage within 5%)
Max. inrush current 0.4A
Leakage current at OFF 0.1mA or less
Max. voltage drop at ON 2.5VDC (0.1A)
ON to OFF 2ms or less
Response
time*1
OFF to ON 2ms or less (resistive load)
Surge suppressor Clamp diode
3
I/O Specifications
External connection system 40-pin connector
Applicable wire size 0.3mm2
Operation indicator None
Voltage*3
12/24VDC
(10.2 to 26.4V, ripple percentage 5% or less)
External
supply power
Current
1.65A for external output
0.05A for internal consumption only
Fuse rating*2 2.0A fuse, unreplaceable
Internal current consumption 0.1A
Weight 250g(0.55lb)
Accessory
1 piece of external wiring connector
(soldered type)
*1: Time in the I/O section.
*2: The maximum load current varies with the number of simultaneous ON
points. Refer to the following information:
Relationships between output load current (common current), number of
simultaneous ON points and ambient temperature
5551
0.1A 16points
=1.6A
0.08A 16points
=1.28A
Common current
Ambient temperature
*3: A fuse-blown error will also be displayed when the external supply power
switches off.
*4: The fuse in the output unit is provided to prevent the external wiring from
burning out if the outputs of the unit are shorted.
Therefore, it may not protect the output elements.
The fuse may not be blown if the output elements are damaged in the fault
mode other than a short circuit.
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