Dongguan 2016 Guancheng Electrician Certificate Agency Review

Ladder diagram is the most commonly used programming language in programming. When drawing and writing ladder diagrams, similar ideas can be used to draw electrical control schematic diagrams, such as using busbars instead of power lines, energy flow instead of current, and soft relay coils and contacts instead of electrical control principles. The physical relay coils and contacts in the figure should be followed when drawing and writing ladder diagrams. The contacts of some basic switches, relays, timers, counters and other soft components written in ladder diagrams can be reused. There is no need to deliberately use complex program structures. Reduce the number of uses of contacts; only one coil of relays, timers and other soft components can be used in the ladder diagram

Contact person: Teacher Li
Consultation phone number:
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School name
: Dongguan Guangyou Vocational Training School
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Address: Dongguan Bus Terminal East Station Third floor (Guangyou Education)
Guangyou Vocational School opens classes all year round
Learn electricians and provide electrician exam practice software
Guangyou Education
Training goals
: From scratch Begin to guide students in an all-round way on how to connect indoor and outdoor wires, emergency first aid and treatment of electric shocks, electrician field operations and theory combined with safe operations, on-the-job operations and employment experience exercises
Specific electrician training course introduction:
Junior electrician training course introduction:
Safe operation for electricians
.
Basic knowledge of electrical circuits
.
Calculation of circuits
.
Series, parallel and application of resistors< br/> .
AC, DC
.
Single-phase AC, three-phase AC
.
Transformer, mutual inductor
.
Single Phase ammeter, three-phase ammeter
.
Motor
.
Use of electrical instruments
.
Multimeter
.
Megohm Meter
.
Current clamp meter
.
Ammeter
.
Voltmeter
.
Application of low voltage electrical appliances
.
Fuse
.
Knife switch
.
Circuit breaker
.
Contactor
.
Thermal relay
.
Intermediate relay
.
Time relay
.
Button
.
Lighting circuit practical operation< br/> .
Practical operation of industrial power circuit
.
Motor forward rotation control
.
Motor interlocking forward and reverse rotation control circuit
.
Double interlocking forward and reverse control circuit
.
Workbench automatic reciprocating control circuit
.
Motor sequential start control circuit
.
Motor Step-down starting control circuit
Intermediate electrician training course training content: electrical control technology, electrician and electronic basics, maintenance electrician technology, internal and external line electrician
technology,
electrical equipment operation,
Transformer and motor operation and maintenance programmable controller principles and applications,
electrical
electrical measurement knowledge, practical operations and other advanced training content: digital circuit technology, factory power transformation and distribution technology, industrial
Factory electrical control technology,
Principle and application of programmable controller,
Principle and practical technology of single chip microcomputer,
Rectifier and
inverter technology, principle and application technology of frequency converter, practical operation Establish a corresponding relationship between the input and output components in the automatic control system according to the situation and design requirements, and then draw a <>ladder diagram according to the action requirements of the automatic control system. This is also the most critical and important step in the design of the automatic control system. Once the ladder diagram is drawn, it means that the design work of the automatic control system is basically completed. Finally, the designer can code and compile the ladder diagram according to the requirements and write it into the recognized program to finally complete the design of the automatic control system.