The ge tlc softwired contactor provides a simple, lowcost, flexible approach to grouping lighting circuits for both manual and automatic control. General digital type motor protection relays using mcumicro controller unit. A wiring diagram of electric equipment represents the physical location of the various devices and their interconnections. Figure 6 contactor switching 2 separate electrical circuits, powered from an independent circuit. A relay may open or close one or more circuits when energised or it may open one circuit and close another. Channel switches within the panel provide builtin override capability. Each lighting circuit is wired through one of the standard relays in the factory assembled panel. Download it today to see just how quickly you can select products and retrieve information. Contactor relays are often used in control and regulating functions. Telemecanique tesys model d contactors and overload relays. Pdf electronic control of an electromagnetic contactor.
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. Please consult a certified electrician for futher instruction if needed. R contactors control of ac and dc power circuits up to 5000 a. Using an ac rated contactor for dc circuits cr4 discussion. Please add any other useful documents for further information e. Coupling relays coils for control by plc 3rh21 525 contactor relays for railway applications coils with extended voltage range 3rh21 535 3th4 contactor relays. Ac motor control circuits this worksheet and all related files. The successful and safe operation of medium voltage control equipment is dependent upon handling.
All lighti ng contactors come with separate control as standard. Application note an016 driving contactors with external pwm gigavac offers the gx14, gx23, and gv200 with builtin pwm economizer coil option m or n. Introduction tesys switching tesys k s207 contactors for railway applications lp4k pb111997. Static switching control static switching control is a method of switching electrical circuits without the use of contacts, primarily by solid state devices. Each channel can control any combination of the 24 relays lighting circuits. The interlock contacts installed in the previous sections motor control circuit work fine, but the motor will run only as long as each push button switch is held down. The complete line of transformers is available with optional factoryinstalled or panelmount. Two independent inputs per each allow both remote manual switches and. This is an extremely interactive catalog with page links, bookmarks, and a search engine. As this explains that it is actually the safety circuit so failure is not an option.
Directives to convert control circuits to extra low. Model c contactor a threephase starter b singlephase starter type. When the requirements of one circuit depend on the function of another a relay is used, in. If the contactor is to be stored over any length of time, the packing material should be restored for protection during that period. An actuating current on a coil operates one or more galvanically separated contacts or load circuits. Manual motor starters, contactors and overload relays.
Control sstems ordering information complete the model number using the matrix provided. The most common for small direct online starters dols is 415vac, as this requires no neutral to be fed to the starter. Quick connect terminals and binder head screws allow for easy wiring. It should not be left outdoors or in adverse conditions. This auxiliary contact has the same rating as a main pole. In addition to the simplicity which they offer in project engineering, panel building, commissioning and maintenance, the high.
A contactor is controlled by a circuit which has a much lower power level. Vacuum contactor the vacuum contactor being replaced was an allen bradley model number 1502v4dbda1. The contactor is operated by the control circuit energizing a coil, which can be controlled by any sort of switching device to perform an assortment of tasks. Dc control circuit iore800 iore iore1400 iore1700 iore2100 iore2500 iore3200 iore3800 iore4500 iore5100 categories ue ac1 at 40 c ie from 85 a to 550 a, select above iormt 900 a a 50 a 1650 a 2000 a 2400 a 3200 a 3800 a 4500 a 5000 a. A special type of overcurrent protection device used commonly in. This is the most common type of contactor used in industrial control applications. To indicate static switching control, use the symbols shown in this table, enclosing them in a diamond as shown. In applications where contact welding occurs almost every case can be. Table 2 71 mounting the 4pole reversing contactor assembly with screwtype connection size s0 step operating instruction figure 1 2 remove the 4th pin from one of the two contacts by releasing the snap hooks. Ca7 coils can easily be reversed in the field, however, they are also available for order with the coils reversed from the factory. The contactor is operated by the control circuit energizing a coil, which can be controlled by any sort of switching device to. Abb offers protection against shortcircuits, phase failures and overload.
The main function of the contactor is to control the electric current to the motor. The normally open starter auxiliary contact and relay contact then form a holding circuit around the start push button. Each channel can control any combination of the 12. In this day and age many items are electronic and powered by low voltage, in many cases batteries. In applications where contact welding occurs almost every case can be attributed to either the coil drive circuit or underestimating the make load current. For estop we have forceguided safety relays however the main power control contactor is where this whole trouble is. Where conditions permit, the packing should be left intact until the contactor is ready for installation. Abb control secrl 7 20010619 new design of large new design of large contactorscontactors terminals at the same level as other system components contactor fits perfectly with abb breakers, switch fuses and overload relays new generation abb contactors. Contactor up to 32 a top mounting auxiliary contact contactor up to 150 a overload relay. Each channel can control any combination of the 12 relays lighting circuits. Typically, when separate auxiliary contacts are ordered, two modules are used. The contactor is driven by a single circuit, using both the normally open and normally closed terminals.
They exist remotely and control circuits with higher voltages which can be. Nsls contactor relays are used for switching auxiliary and control circuits. Control panel technical guide how to quickly design optimized. Contactors contactors are historically the most common type of control device. The many example circuits in particular are continually. Contactor relays contactor relays contactor relays are often used in control and regulating functions. Refer to the standard voltage codes listed in table 3 on page 3. They exist remotely and control circuits with higher voltages which can be dangerous to the operator, if controlled directly. This is depicted in an electrical drawing in figure 2. A relay may open or close one or more circuits when energised. Af40 contactors are used for controlling power circuits up to 690 v ac and 220 v dc.
Examples of control circuits6 2wire control 6 3wire control 69 shunting thermal units during starting period 10 overcurrent protection for 3wire control circuits 11. Contactor relays have mechanically linked auxiliary contact elements sidemarked symbol control circuit. Control of lighting and branch circuit loads tes engineering. The electro mechanical relay is a remote controlled switch capable of switching multiple circuits, either individually, simultaneously, or in sequence.
Introduction tesys switching tesys k s335 contactors for electrodomestic applications lp4k pb111997. Common relay contactor setup utilising an emergency stop circuit fig1. This catalog covers class 8910 types dp and dpa contactors, class 8911 types dps and hm starters, class 8965 type dpr reversinghoist contactors, class 8965 type dpr, class 8965 type r reversinghoist contactors, class 9998 contact kits and replacement parts kits, and class 9999 external auxiliary contacts. How do i connect a contactor and overload to create a direct. The industrial controls catalog as a single interactive pdf file. The life expectancy of a contactor or contact life the life expectancy of a contactor or its contact life is one of the biggest concerns of a user. The complete line of transformers is available with optional factoryinstalled or panelmount primary and secondary fuse block. Troubleshooting electrical control circuits is defined as the logical and orderly process to determine the fault or faults in an electrical control circuit. Our bulletin 100s104s iec safety contactors provide mechanically linked, or mirror contact performance up to 750 a, which are required in feedback circuits for modern safety. Data sheet citi contactors and motor starters type ci 6 50. Troubleshooting electrical control circuits industrial wiki. Possible to print the page to a pdf file or from your printer.
The finished project contains electrical diagrams, panel mechanical layout and various lists. Higher make load currents are usually from load capacitance. The low power consumption contactor designed to control motors. They are used in large quantities for the indirect control of motors, valves, clutches and heating equipment. Metasolmc and mt series protecting controller adhere to the following. This catalog covers class 8910 types dp and dpa contactors, class 8911 types dps and hm starters, class. In this way you can always check that you have been through all steps. It may be conveniently located inside an electrical junction box. The employers liability insurance association demands that, for control systems of powerdriven metalwork presses, the contacts of contactors must be interlocked and opposing. A lighting contactor switch operates at a lower but safer. Plc1f ac contactor plc1f series ac contactor is applicable to the circuits up to the rated voltage v ac 50hz or 60hz, rated current up to 780a, for long distance breaking circuit and frequently. A plc located in the plant control room controls the vacuum contactor. If we wanted to keep the motor running even after the operator takes his or her hand off the control switches, we could change the circuit in a couple of different ways.
Nss contactor relays are used for switching auxiliary and control circuits. Motor protection and control manual motor starters, contactors and. For those customers that prefer to use their own pwm circuit, gigavac can also provide the contactor without the internal economizer coil option p or q. To stop either circuit forward or backward, we require some means for the operator to interrupt power to the motor contactors. Definite purpose contactors are ideal for heating, air conditioning, refrigeration, data processing, and food. Application description y 012014 line contactor control using the onoff1 command for sinamics g120. Interpret this ac motor control circuit diagram, explaining the meaning of. Gigavac has performed extensive testing to determine the make current capability of their contactors. They are used in large quantities for the indirect control of motors, valves, clutches and heating. When the start push button is pressed, the control relay is energized, which in turn energizes the starter coil. This manual is intruduces the types, characteristics, functions and offers product. Model 4436 three phase contactor power control panel with.
Lighting contactors are relay switches that control the flow of electricity through a circuit powering the lighting in a given area. Fused control circuit transformer and control relay. Ideal for peak, offpeak, and closed business hours. Compact 1 and 2pole contactors are available, as well as fulls ize devices with 2, 3, or. The contactors here are for main power switching high power and estop for estop we have forceguided safety relays however the main power control contactor is where this whole trouble is. Relay switch or contactor for 240v this switch allows you to control multiple circuits with a single control. Line contactor control using the onoff1 command for sinamics g120 version 1, itemid. Manual starters are devices that are operated manually. Selecting the right control voltage is an important design criterion for contactor control circuits and the various issues are not always well understood. Contactors, overloads and manual motor starters minicontactors and overloads up to 20 amps or 7.
Contactors true dc coil four pole series ca7 nonreversing, four pole contactors with true dc coil, series ca7. All dil contactor relays have doublebreak contacts. This is the other motor starter circuit, which operates the contactor to turn it on or off. Application description y 012014 line contactor control.
To read and understand electrical drawings, it is necessary to know the. Lc1d contactor key features i ratings from 9a to 150a inductive 160a resistive for a wide variety of applications. A reverser pair of contactors can be wired upstream with the appropriate interlocking circuit. Abb control secrl 1 20010619 a new contactor range from abb new generation abb contactors. Tutorial motor control o shows you how to make a small control circuit, where all components are found in the component database. A contactor is controlled by a circuit which has a much lower power level than the switched circuit. How do i connect a contactor and overload to create a. Type dpr contactors accept one auxiliary contact modu le with up to two isolated circuits per side two modules per device. Brochure r contactors control of ac and dc power circuits. Range of 26 contactors for motors ac3, resistive loads ac1, control circuits.
Class 8965 type dpr reversinghoist contactors are designed for the control of motors in hoists, overhead doors, small elevators, commercial laundry equipment, and. It is necessary to understand the nature of electromagnetic contactor coil. Xtiec power control quick reference guide contactors starters manual motor. They are mainly used for controlling 3phase motors, noninductive or slightly inductive. Dec 31, 2015 reading and understanding electrical drawings electrical drawings can represent anything from a singleline power distribution, to a power or control circuit, and are prepared using various symbols for electrical devices and their interconnections with lines representing conductors or wires used for interconnections. A simple circuit diagram either of the two start buttons will close the contactor, either of the stop buttons will open the contactor. A contactor is an electrically controlled switch used for switching a power circuit, similar to a relay except with higher current ratings. Controls contactors and contactor assemblies contactor. If magnetic circuits other than the contactor coil systems or solenoid valves are present, e. Ges magnetic contactor is designed for use on todays modern. When the coil is energized, the circuit that the contactor is switching will be energized.
A dual primary and secondary fuse block is prewired and mounted on top of the transformer up to 500va. The finished project contains electrical diagrams, panel mechanical. It may be possible to improve delivery by ordering an open style contactor and separate class 9991 enclosure. Industrial controls catalog industrial controls sirius. Vernier control is not quite as accurate as full scr control, but more accurate than contactor step control. Bulletin 1497 global control circuit transformers are designed to reduce supply voltages to control circuits. This situation generally arises in a home when low voltage circuits are used to control normal house. Ac reversing manual starters and manual motor starting switches. The contactor is rated for 7,200 vac and a continuous rating of 400 amperes. No part of this wiring manual may be reproduced in any form. Electrical control components relays a relay is essentially, a switch which is operated by an electromagnet instead of manually. Motor control circuits ladder logic electronics textbook. Note that one one of the contactor acts as a switch for the start button. This situation generally arises in a home when low voltage circuits are used to control normal house circuits.
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