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PROCESS CONTROL ACTUATOR

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PROCESS ACTUATOR Actuators are devices that are directly connected to control device in the field to achieve control actions. It may be coil, lamp, relay, vibrator, solenoid valves, cylinders, electric motor, pump, and so on. Another name for output devices is ACTUATOR. They are powered with any of this form of energies electrical, pneumatic and or hydraulic energy. Some actuator performs action without given feedback to elements controlling them while some gives feedback about their current position or status of mechanism they are attached to. Some actuators make use of digital output signal to perform operations while some uses analogue signals to perform operation. Some makes use of only one source of energy to initiate control actions while some combines two sources of energy to initiate control actions such as pneumatic and electric power as in the case of pneumatic components . Some actuator can convert mechanical rotational motion to linear moti...
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Servo Motor

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AC SERVO MOTOR Precision, Speed, Accuracy, Throughput and Analytical functions are the design target of every control system.  Servo motor is an electric motor designed for precision purposes most especially for position, velocity and torque control capability which makes motion/movement more accurate. Servo motor's design unlike other synchronous motor takes advantage of feedback feature to deliver accurate motion as profiled in the program software. Like all other motors, servo motor consist of Rotor and Stator but in addition has encoder/resolver as the feedback component while some are with or without brake system depending on applications Other electric motor may be started directly by applying the voltage using some forms of switching devices such as contactor or switches while others may be powered with frequency inverters where there may be need for operation speed to be regulated but servo motor does not follow suit. It is being power by...
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COMMUNICATION PROTOCOLS

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INDUSTRIAL COMMUNICATION PROTOCOL Either we like to be a System Engineer that understood well the intricacies of computer communication or not, it is one of the duty of anyone involved in Electrical  Control, Instrumentation and Automation to be familiar with the aspect related to their field in which now i will discuss with you. Listed below are the list of communication protocol as formulated by different vendors but the most commonly used in the Industrial machine application to connect PLC, HMI, Drives, Field devices, and more are ETHERNET, PROFIBUS, DEVICENET, AS-i, PPI, MPI, POWERLINK, ANYBUS, CANBUS, PROFINET, BacNet, HART, MODBUS,  SERCOS COMMUNICATION PROTOCOLS AS-i : Actuator-sensor interface, a low level 2-wire bus establishing power and communications to basic digital and analog devices BSAP : Bristol Standard Asynchronous Protocol, developed by Bristol Babcock Inc. CIP : (Common Industrial Protocol) – can be treated as appli...
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ELECTRICAL INSPECTION AND TESTING

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ELECTRICAL INSPECTION AND  TESTING The integrity of electrical installation and component testing is often overlook for most commercial and residential installations around here because such are yet to be placed priority on by the electrical regulation authority and most service providers found it unnecessary because of time consumption since some are supposed to be done periodically. Nevertheless, because this is our passion, our profession and also the standard was of delivering the services, it is worthy talking about so that those that have been executing jobs and does not actually recognize the real importance would amend their methods. Inspection and testing is the most critical part of any electrical job because electricity is a foe which needs to be carefully handled following the lay down rules, regulations, and procedures. Quality installation is the desire of all electrical contractor and safety, occupational health requirement and adhering to standard mus...
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Modern Prescription to energy independence

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Renewable energy is no more an option but a necessary for all in this present generation. There are several method of generating electricity but most of these methods (especially from fossil fuel) are not clean (but impact the environment), not reuseable/renewable niether sustainable. The cleaniest and most sustainable form of energy that cut down on energy cost, improve climatic conditions and changing the way we live in this present day have been proven to be renewable enegy, energy generated from non fossil fuel such as from Wind, Solar, Biomass and others. Solar energy is one of the easiest way by which individual can produced energy.  It is a form of energy derived from the sun irradiance and sun is ofcourse a free gift of nature. This energy from sun ray is being converted into heat energy or electric energy. This page will expose to you how to use the advantages of Solar  electric energyto take care of all your ele...
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Major Component of Electrical Control systems

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Actions in facilities and processing operations are ACTIVATED by some elements or components reffered to as input and output devices. Logics are built behind the scenes of all control operation irrespetive of design, complexity and application. Either to light a single but or to control a robot arm. For control actions to take place, components are interconnected to carry out various control actions following predesigned logics which examines different set conditions that defines a particular or intended operation(s). Therefore before we dive into control concepts, components that are put together to achieve several applications needed to be considered and there usage also clearly understood. List of electrical control components Switch: Switches are input devices and they are used for giving a HIGH or  LOW signal in an electrical circuit. Simply say for turning ON or OFF a signal level in a circuit. Th...
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