Possible to print the page to a pdf file or from your printer. Basics of multimeters analog and digital multimeters solenoid meters accessories. Power electronics and motor drive systems is designed to aid electrical engineers, researchers, and students to analyze and address common problems in stateoftheart power electronics technologies. Figure 1 is a typical wiring diagram for a threephase magnetic motor starter. Solidstate electronic ac motor drives are becoming more.
Open circuit faults an open circuit fault is any fault that stops the operation of a machine due to an open wire or component. Ql bow and stern thrusters basic electrical troubleshooting. All about motors 88 motor protection selection aids the eaton selector slide enables you to determine quickly and reliably which motor starter is the most suitable for the application concerned. I initially started testing using only a simple multimeter analog to boot and a small dc motor to determine voltage levels and see if the motor would in fact vary in speed. No part of this wiring manual may be reproduced in any form. Chances are, you wont be an expert in repairing these devices, but you can take some practical steps to solve problems and help get your systems operational again in a timely manner. About 70% of the time is spent working, handson, at a troubleshooting station with motor control circuits.
Basic wiring for motor control technical data guide eep. Your professionals will learn to diagnose and repair multiple faults, honing their skill at troubleshooting motor circuits. Troubleshooting electrical control circuits industrial wiki. Once you are familiar with the basic circuit, our electrical training instructor will teach you how to apply these theories to more complex systems so that you can quickly troubleshoot and repair. The drive motor is a dc 12 or 24 series wound that is designed to draw a high current and to run in short bursts. Power electronics and motor drive systems sciencedirect. It requires you to follow specific and systematic procedures. Accessory circuit electrical power and control signals must be delivered to electrical devices reliably. About 70% of the time is spent working, handson, at a troubleshooting station with motor control circuits operating at a safe, low level of 24 volts. Operating from 3 v to 40 v frequency operation to 100 khz active current limiting description the mc34063ae series is a monolithic control.
Basic electricity current, voltage, and resistance ohms law and calculations seriesparallel circuits kirchhoffs laws and corollaries. Explains troubleshooting practices on dc and ac motors, identifying unmarked leads on threephase delta and yconnected. First make sure the problem is not something simple such as an unplugged device or a tripped circuit. Constructor software create and simulate electrical. Includes maintenance procedures for control circuits and combination starters. The motor control section has two functions, it first takes single phase 120v or 240vac power and converts it to dc the motor can operate at either of these ac voltages simply by adding or removing a jumper on the 5 pin connector in the motor control section.
Motor control circuits motor control wiring diagrams. With a 12 volt power source connected to the load, the meter should read a voltage drop equal to the source voltage or 12 volts. Although the content is geared towards control circuits. A rusty motor worm gear will act like a file ruining the expensive bronze gear it mates with. Dcdc converter control circuits datasheet production data features output switch current in excess of 1. Capitulo 2 automotive electrical circuits and wiring. Troubleshooting electrical control circuits is defined as the logical and orderly process to determine the fault or faults in an electrical control circuit. Drives 148 current control 150 torque control 152 speed control 152. Easy to learn and use our new active help system, help files, and a pdf manual makes learning to use this powerful software much faster and easier. Basic circuit troubleshooting worksheet basic electricity. Ac adjustable speed drives asd have become the most popular variable speed control. Practical troubleshooting of electrical equipment and.
There is a large reversing solenoid with two separate coils that are used to run the motor forward or reverse. Unit 1 basic principles of motor controls unit 1introduction this unit discusses the basic concepts of motor control, including motor control language and the types of wiring diagrams used. Your complete circuit can be tested, from the three phase power components to the control circuit. Troubleshooting control circuits tcc is the second simulation in our series. Fortunately, electrical circuit troubleshooting is an activity that works well for small groups of students to engage in as well as individual students.
Electrical motor control circuits free download for. You can assemble a stepper motor translator circuit using just two ic packages. Troubleshooting control circuits free downloads and. For this only the operating voltage, the motor rating, the various short circuit ratings and coordination types are. Iec issues recommendations on electrical terms, ratings, test methods and dimen. Troubleshooting a variable frequency drive newsletter introduction in many industrial and commercial plants, automation of any process and associated control relies heavily on motors and adjustable speed drives. How to do electrical troubleshooting of electrical motor. Control circuits usually carry lower voltages than power circuits. This electric motor control circuit training software is quite detailed. Potentiometers are rarely used to control significant power more than a watt. Motor control circuits software free download motor. Switching mode power supplies, stepper motors, copiers and fax. Wiring diagrams show the connections to the controller, while line diagrams show circuits of.
Basics of industrial electricity and troubleshooting. Examples of control circuits 6 2wire control 6 3wire control 69 shunting thermal units during starting. Here, you will troubleshoot a motor control circuit consisting of a reversing motor controlled garage door. A virtual troubleshooting exercise such as this one is a good way to start students thinking in the right ways to becoming effective troubleshooters. Eymc timed agenda \ syllabus time subject break day 1 8. Ac motor control circuits this worksheet and all related files. As the circuit exists right now, the motor will run either forward or backward once the corresponding pushbutton switch is pressed and will continue to run as long as there is power. A wiring diagram gives the necessary information for actually wiringup a group of control devices or for physically tracing wires when troubleshooting is necessary. Motor control circuits ladder logic electronics textbook. The problem is, neither of you brought a clampon ammeter for measuring the line. This simulation explores an industrial garage door circuit. Automationdirect offers a complete line of fuji electric iec motor controls. Automotive electrical circuits and wiring 9 101 battery capacity the capacity of a battery is measured in amperehours. Troubleshooting control circuits simutech multimedia.
Lets develop our procedure for troubleshooting an open circuit in the control circuit. Wiring diagram book a1 15 b1 b2 16 18 b3 a2 b1 b3 15 supply voltage 16 18 l m h 2 levels b2 l1 f u 1 460 v f u 2. This workshop focuses on the main issues of troubleshooting electrical equipment and control. They are an ideal means for troubleshooting a circuit. Motor control and troubleshooting rockwell automation.
You would still need a way to switch the direction of the motor. Motor current waveforms 6 discontinuous current 9 converter output impedance. Many of our customers have used electrical cad software before and comment about how easy our software is to use compared with other electrical cad. Ql bow and stern thrusters basic electrical troubleshooting all ql bow thrusters use similar wiring of the controls. To stop either circuit forward or backward, we require some means for the operator to interrupt power to the motor contactors. This workshop shows delegates how to troubleshoot electrical equipment and control circuits. Troubleshooting an open circuit faults in the control. Author stefanos manias supplies a detailed discussion of the theory of power electronics circuits and electronic power conversion technology. Every effort has been made in this first edition text troubleshooting scenarios. Contactor motor starters motor controls automationdirect. At the end is just an example how our software uses realworld workorder system to track student while doing electrical troubleshooting with our simulation software, and. Dc motor control using a single switch this simple circuit lets you run a dc motor in clockwise or anticlockwise direction and stop it using a single switch, pdf file dc motor driver hbridge circuit the motor can be driven forward or backward at any speed, tc4424. Electric motors present some special problems from the standpoint of control. The electrical troubleshooting online electrical training course covers use of schematic diagrams, determining sequence of operation, and use of building diagrams and singleline diagrams.
Troubleshooting electric motor control circuits wiring fault simulation troubleshooting electric motor control circuits wiring fault simulation this awardwinning electrical training program builds on the basic techniques program. Troubleshooting the basic windlass system schaefer marine. Troubleshooting electric motor control circuits wiring. These manuals are specifically made up for the individual panel, and are generally sufficient for any or all problems which may be encountered. The test leads are connected in parallel across the circuit load.
This video uses electrical troubleshooting simulation software to teach you how to troubleshoot an electrical motor control circuit. This site is not directly affiliated with business industrial network. Control circuit and motor troubleshooting flashcards quizlet. This electrical training course will present the theory of control operation and the proper techniques for diagramming motor control circuits. Therefore, motor troubleshooting involves the entire system, not just the. Apply a systematic approach to troubleshooting motor control circuits. Dpdt switch and potentiometer combinations can lead to problems if you quickly switch from full forward to full reverse. This is a basic course, without any prerequisites, that. As an industrial electrician, youll encounter many complex electrical circuits and drives that will break down as they age. There is a chasm between the theory of electron flow, magnetic fields and troubleshooting electrical equipment and control circuits in the plant. Using logic gates to control stepper motors another approach to operating unipolar stepper motors is to use discrete gates and clock ics. At the end is just an example how our software uses real world workorder system to track student while doing electrical troubleshooting with our simulation software, and the detailed analysis report. Motor speed control circuits, motor control projects. Motor control circuits motor control circuits are an effective way to reduce.
Troubleshooting motor circuits tmc is simutech multimedias third troubleshooting simulation. Basics of industrial electricity and troubleshooting electrical control circuits 4 day code. Abb offers protection against shortcircuits, phase failures and overload. Troubleshooting of electrical motor control circuit. Electrical motor control circuits is a product developed by business industrial network. Pwm circuit for mc2100 motor controller board so, with my first prototype laid out on a breadboard i proceeded to do some testing. Abb motor protection and control short form catalog 11. Verify continuity of windings motor leads to unpainted motor end plate. Problems and premature failures often indicate input power system troubles, poor or deteriorating mechanical installations, or malfunctions in the driven machinery. Just using a potentiometer can control speed, but not direction. This circuit contains such components as limit switches. Also the pdf laboratory manual come full of proven wiring assignments that will help to build competencies.
Switching mode power supplies, stepper motors, copiers and fax machines. Troubleshooting electrical motor control circuits cbt. To be respectful of the environment, rockwell automation is transitioning some of its training courses to a paperless format. Motor protection and control manual motor starters, contactors and. This awardwinning electrical training program builds on the basic techniques program. This product teaches proven techniques for troubleshooting control circuits. Basic electricity current, voltage, and resistance ohms law and calculations seriesparallel circuits. Easter egging just doesnt work unless you happen to be very lucky. Solenoids, timers, sensors, relays, troubleshooting, even an introduction to plcs is included. Electric motor maintenance and troubleshooting 2nd edition. A control circuit is a special type of circuit that uses control devices to determine when loads are energized or deenergized by controlling current flow. Your professionals will diagnose and repair a variety of faults in a simulated control circuit consisting of relays, pushbuttons, a control transformer, a solenoid lock, a proximity switch, and circuit protection.
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