training program for engineers .pdf
TRANSCRIPT
![Page 1: Training Program for Engineers .pdf](https://reader031.vdocument.in/reader031/viewer/2022020308/563dbb28550346aa9aaabff7/html5/thumbnails/1.jpg)
Presented by:
Koti
Engineer Automation
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What is a Robot ?
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Robot Definition
A robot is a mechanical intelligent agent which can
perform tasks on its own, or with guidance. In practice a
robot is usually an electro-mechanical machine which is
guided by computer and electronic programming
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Robots come in many designs. These are
determined primarily by the job they are
intended to perform. Most industrial robots are
fixed station units.
Industrial Robot Classification
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Cartesian Robot
The first type of robot is called the
Cartesian robot. This type of robot
uses the X, Y, Z three dimensional
coordinate system to control
movement and location.
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Gantry robots are Cartesian
robots that have been super-
sized! This structure minimizes
deflection along each axis.
Gantry Robots
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Cylindrical Robots
Cylindrical robots have a main axis
that is in the centre of the operating
envelope. It can reach into tight
areas without sacrificing speed or
repeatability.
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Spherical Robots
Spherical or polar robots are similar to
a cylindrical robot, but form a spherical
range of motion using a polar
coordinate system.
©Emil Decker, 2009
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SCARA Robots
SCARA robots, or Selective Compliance Assembly Robot Arm, are
quite popular. It is a combination of the articulated arm and the
cylindrical robot.
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Parallel Robots
Parallel Robots consist of a fixed base to a platform by means of a
number of legs. This type of robot is used to create realistic flight
simulators or rides in amusement parks.
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Articulated Arm Robot
Articulated arm robots have at least three rotary joints. They are
frequently called an anthropomorphic arm because they closely
resemble a human arm.
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Degrees of Freedom
Degrees of Freedom refer to the
movement range available for a
given piece of equipment within
three dimensions.
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Degrees of Freedom
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Basics Of ABB
Robots
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DEFINITION OF AN INDUSTRIAL ROBOT
An industrial robot is a programmable multi-
functional,multi DOF manipulator powered by electricity.
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MAJOR COMPONENTS OF ROBOT
Manipulator( body of robot )
Controller(computer +drives)
End-effector (tool)
Man Machine
Interface (TeachPendant/Laptop)
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THE END_EFFECTOR
The tool that is attached to the Tool Mounting Flange of
the robot is known as the end_effector , it may be cutting
tool, drill bit, gripper (vacuum, pneumatic or servo),
welding gun, hemming tool, glue gun etc.
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PNEUMATIC GRIPPER
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A WELDING TORCH
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A VACUUM GRIPPER
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Block Diagram of Robot
CONTROLLER ROBOT MANIPULATOR
3 Phase 415VAC
R
Y B
Manipulator Power cable
SMB Cable
EXTERNAL AXIS
Ext Ax Power
Resolver Cable
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DESCRIPTION OF A MANIPULATOR
A manipulator is an assemblage of rigid links connected by joints.
Each joint is driven by an actuator (AC Servo motors in ABB
robots).
Actuators are coupled to joints via geared transmission.
An industrial manipulator has 4 OR 6 degrees of freedom.
Brakes are installed in every joint motor to hold the manipulator in
position against gravity in motors off state.
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THE 6 AXES OF A ROBOT
Link 0 (Base)
Link 1
Link 2
Link 3
Link 4
Link 5
Link 6 (tool flange)
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Manipulator Open Link Mechanism
Link 0 Link 1 Link 2 Link 3
Link 4 Link 5 Link 6
Base of robot
Tool Flange
Joint 1 Joint 2 Joint 3
Joint 4
Joint 5 Joint 6
Manipulator consists of Links (Rigid Arms)
Each link is connected to previous link by joints
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USE OF RESOLVERS AND SMB
Every joint of a robot has a resolver , the resolver measures the position and velocity of a joint and sends
the data to the SMB (Serial Measurement Board) located at the base of the manipulator.
There is a separate battery for backing the SMB data in case of a power failure.
The SMB is connected to the controller via “resolver cable”.
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DEGRES OF FREEDOM
The number of independent movements a robot can make is known as the degree of freedom of
the robot manipulator.
In other words the number of rotary axes a manipulator has is known as its degree
of freedom.
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THE 6 AXES OF A ROBOT
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THE MAJOR AND MINOR AXES OF A ROBOT
The first 3 axes (axis 1/2/3/) of a robot are known as the
major axes because they help in positioning the wrist
at a required point on the workpiece.
The last 3 axes (4/5/6) of a robot are called as the minor
axes because they allow the wrist to reorient in any
required direction without changing its position.
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IRC5 Controller
overview
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Flexible Controller
Control module
Contains computer unit, safety
interface, control panel, space for
standard and customer options
Drive module
Contains drive system, axis computer,
transformer, mains connection & filter
Building block for MultiMove
application (up to 4 drive cabinets
connected to a single control cabinet)
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Control Module
A. Customer I/O power
supply
B. Control panel
C. Main switch
D. System power supply
E. Computer unit
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Drive Module: Small robot with external axes
Rectifier Drive units *Capacitor
Axes
computer
* Empty for small robots, if no external axes
Drive units
for ext axis
K42 K43
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New Modules (”Design 2006”)
Single cabinet controller and process module added
Module range enables optimization for different customer needs
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Single Cabinet Controller
90
0
Drive and control functions combined in
one cabinet
New ”Design 2006” encapsulation
Clean AluZinc cabinet
(only front painted)
resistant to environmental
influence
self healing if scratched
Dimensions 970 x 725 x 710 (H x D x W)
Full option range, including MultiMove
Max 2 internal I/O units (compared to 4)
Less connector space
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Inside IRC5 Single Cabinet Controller
Power ON/OFF
Power supply units
Operator´s panel
Service ports USB (option)
Ethernet
Computer UltraCap
Duty Time Counter
Motors On contactors
and interface board (left inside wall)
Computer unit
Panel unit (safety interface) (right inside wall)
Customer (I/O) space
FlexPendant
connection Axis computer (right inside wall)
Drive unit
section
230/120 V service
outlet
Manipulator signal
interface
Power intake
Customer connections
Manipulator connections
(behind optional cover)
Options:
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Single Cabinet Controller
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Differentiation
Single Cabinet Controller
The ”standard” controller
Dual Cabinet Controller
Premium version for higher demands
Differentiating selling points vs. single cabinet and vs. competition
More connector space
More internal space
Distributability
Minimized height (with modules side by side)
Offers possibility to convert a MultiMove system to multiple single systems by adding control module
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IRC5 HW Overview
MC
Panel
Safety
Power &
UPS Power
Drive
Safety
AXC
Drives I/O, Sensors and
Process equipments
USB LAN Service
Control module Drive module
SMB
Motor
S4CPlus
Carry over
IRB xxx
Block Diagram of Controller
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Field buses
Fieldbuses
DeviceNet Master/Slave one or dual channel
Profibus DP Master/Slave
Interbus Master/Slave
Both copper-wire and fiber-optic interface available
EtherNet-IP slave
Communication
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IRC5 FlexPendant continue
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IRC5 FlexPendant
Intuitive standard screens
3 ax joystick
8 hard keys (4 customizable)
User Authorization System, allowing defined access levels for different user groups
Hot Plug - possibility to connect and disconnect during operation
Asian character support
Right and left-handed support
Swap HMI language without restart
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IRC5 FlexPendant continue
Graphical colour touch screen
3-way joystick
Emergency stop
4 Hard keys for running programs
Start
Execute Backward/Forward
Stop program
4 Hard keys for fast access
Assignable
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IRC5 FlexPendant continue
ABB Menu
Main menu Status bar
Quickset Menu
Windows style
“switch between
open windows/views”
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IRC5 FlexPendant continue
ABB Main Menu
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IRC5 FlexPendant continue
Inputs and Outputs (I/O Window).
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IRC5 FlexPendant continue
Jogging window
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IRC5 FlexPendant continue
Quickset Menu
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Learning to Move a Robot
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JOGGING
Jogging means manually moving a robot using the
joystick on the flexpendant.
The Robot gains more as per the Joystick Deflection.
Jogging cannot be done in auto mode.
Jogging is used while teaching a robot points in space.
Jogging can be done while programming.
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JOGGING
From ABB main menu select jogging.
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Operating Mode
Automatic mode
Production mode (programmed
speed)
Manual mode
< 250 mm/s – max velocity 250
mm/s
Manual 100 % – Option,
Robot program can execute in full
speed, (programmed speed).
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Enabling Device
The enabling device is a switch with three positions
The switch must be in the middle position in order to
activate the motor on contactors and drives
All robot movement will immediately stop if the switch is
released or pressed to the bottom
Enabling device
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Hold-to-Run (Manual 100 %)
Option (3-mode selector)
The Enabling device and one of the hold-to-run
buttons must be pressed simultaneously to
start the motors. Or Start/Step button
constantly pressed (FlexPendant gen2,
supported from RW5.06.04)
Enabling device
Hold-to-run buttons
(for left or right hand)
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Safeguarded Stop
The connection of safeguarded stops enables inter-lock of external
safety equipment, such as: doors, photo-electric trip device, photo
cells or sensible mats
Safeguarded stop can be connected in three ways:
Auto Stop (AS) – active when automatic mode is selected. Possible to
jog and run program in Manual Mode
General Stop (GS) – active regardless of operating mode
Superior Stop (SS) – the safeguard stop is active regardless of
operating mode
Possibility to activate Delayed Safeguarded Stop and Emergency
Stop. Delayed stop gives a smooth stop. The robot stops in the
same way as at a normal program stop with no deviation from the
programmed path. After approx. 1 second the power supplied to the
motors shuts off
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JOGGING WINDOW
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MODES OF JOGGING
Jogging can be done in three modes:
Axes mode (joint by joint )
Linear mode (along X / Y / Z)
Reorient mode (changing orientation of tool)
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AXIS MODE
We can jog axes 1-3 or axes 4-6 at one go.
The position format shows the angular position of each
joint in degrees or radians.
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LINEAR MODE
In linear mode the TCP moves in a straight line.
The TCP can move parallel to either the x-axis or the y-axis or the
z-axis of the selected coordinate system of the robot which can be
the base,world,tool or workobject coordinate system.
The position format shows the position of the TCP w.r.t the
coordinate system selected in mm and orientation of tool in
Quaternions or Euler Angles.
During linear jogging orientation of tool remains same.
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REORIENTATION MODE
In reorientation mode the TCP of the selected tool
remains at a fixed positon in space.
However the orientation of the tool about that fixed point
changes.
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INCREMENTAL MODE
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JOYSTICK LOCK
The movements of the joystick can be restricted in few
or all directions using the joystick lock.
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QUICKSET MENU
The quickset menu can be used for easy selection of
jogging modes and setting the speed.
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SPEED AND RUN MODE
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MultiMove!
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ROBOT SPECIFICATION
ABB robots are specified using a designation IRB say for example,
IRB140, IRB1400, IRB2400, IRB1600, IRB6600, IRB340 etc.
IRB stands for Industrial Robot Body
Some important specifications to look for in a
Robot are:
1.Payload 2.Reach 3.Supplementary load. 4.Speed
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TECHNICAL DATA FOR IRB 140
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TECHNICAL DATA FOR IRB140
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OPERATING MODES OF A ROBOT
Manual mode.
Manual 100% mode.
Automatic mode.
A robot can be operated in three different modes:
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OPERATING MODES
MANUAL MANUAL 100% AUTOMATIC
Robot can be Robot can be Robot cannot be
jogged at less jogged at less jogged
than 250 mm/s than 250 mm/s
Enabling device Enabling device No need of enabl_
needs to be pre_ and Hold to Run ing device or hold
_ssed button needs to to run button
be pressed
Programmed Programmed speed
speed is not Programmed speed is followed.
followed. is followed.
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COORDINATE SYSTEMS
THE BASE COORDINATE SYSTEM.
THE WORLD COORDINATE SYSTEM.
THE TOOL COORDINATE SYSTEM.
THE WORK OBJECT COORDINATE SYSTEM.
A coordinate system = origin O and
3 perpendicular axes X, Y, & Z.
It is used to specify the position of a point in space.
The various types of coordinate systems used in a
Robot are:
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COORDINATE SYSTEMS
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TOOL COORDINATE SYSTEM
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IRC5 Safety
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Emergency Stop
Emergency stop pushbuttons
as default on FlexPendant
and Control module
Additional emergency stops
to be connected to IRC5
safety chain on Panel unit by
the integrator
External Operators panel with
Emergency stop (Option)
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Safety Regarding Releasing the Brakes
Emergency release of the robot’s arm In an emergency situation, any of the robot’s axes may be released
manually by pushing the brake release buttons on the robot
The robot arm may be moved manually on smaller robot models, but larger models may require using an overhead crane or similar
Increased injury
Before releasing the brakes, make sure that the weight of the arms does not increase the pressure on the trapped person, further increasing any injury!
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Recover from Emergency stop
Action
Make sure the hazardous situation that resulted in the
emergency stop condition no longer exists
Locate and reset the device or devices that gave the
emergency stop condition
Acknowledge the emergency stop event (20202) in the
event log
Press the Motors On button to recover from the
emergency stop condition
![Page 77: Training Program for Engineers .pdf](https://reader031.vdocument.in/reader031/viewer/2022020308/563dbb28550346aa9aaabff7/html5/thumbnails/77.jpg)
BRAKE RELEASE BUTTON
The brake release buttons when pressed release the
brakes.
![Page 78: Training Program for Engineers .pdf](https://reader031.vdocument.in/reader031/viewer/2022020308/563dbb28550346aa9aaabff7/html5/thumbnails/78.jpg)