Safety instructions always follow safety instructions to prevent accidents and potential hazards from occurring. Pulse width modulated, or pwm vfds, deliver a constant voltage hertz ratio with no line notching and very stable current input for the motor. Lg svis5 instruction manual pdf download manualslib. Each part of a variable frequency drive has the following function. Pulse width modulation pwm variable frequency drive the unique method by which this type vfd creates variable voltage gives the pwm vfd its name. Last 3 faults ip20 enclosure rs485 ls bus modbus rtu communication builtin option. The ac electric motor used in a vfd system is usually a threephase induction motor. Starvert is5 variable frequency drive catalog manualzz. A variable frequency drive vfd is a type of motor controller that drives an electric motor by varying the frequency and voltage supplied to the electric motor. Variable frequency drive ie5 user friendly micro size slim vfd 1 phase 0. In two positions, the voltage is zero, ie, when all the phases are connected to the same dc bus, either negative or positive. Receiving check to make sure that the package includes an ac drive, the user manual, dust covers and rubber bushings.
Ls variable frequency drivels variable frequency drive. Home decorating style 2020 for lg is5 inverter manual pdf, you can see lg is5 inverter manual pdf and more pictures for home interior designing 2020 32657 at manuals library. Ls ig5a micro drive inexpensive and instock call 8008482504 for info download. Whether you are looking for an inexpensive and tested drive or a new and innovative one, has a. Duty weight kg indicates the maximum applicable capacity when using a 4pole lg motor. A converter is a device to create the dc from the ac power supply. Rated capacity v 3vi is based on 220v for 200v class and 440v for 400v class. The variable frequency drive evaluation protocol presented here addresses evaluation issues for variable frequency drives vfds installed on commercial and industrial motordriven centrifugal fans and pumps for which torque varies with speed. Variable frequency drives troubleshooting larry stanley, regional sales engineer, january 2014. Aug 10, 2008 as the first company to introduce a generalpurpose drive in korea and the. Ac motor, main drive controller assembly, and driveoperator interface 210211. How to wire a vfd variable frequency drive duration. Huge energy savings potential operating centrifugal fans, pumps and compressors vary frequency of electrical.
Ac drives dc drives variable frequency speed drives vfd. As the frequency is decreased, the speed of the motor also decreases. Brief explaination about working of vfds, benefits and. Vfd drives were first introduced in 1983, and the insulated gate bipolar transistor has in the past 20 years become the standard for vfd drives as an inverter switching device. Variable frequency drive ls drive series s100 ie5 ic5 ig5a is7 ip5a iv5. This is a user friendly drive, with a small footprint. Variable torque loads horsepower increases or decreases as cubic function of speed. Energy savings using a vfd to control the speed of a variable torque load can be very large due to how centrifugal loads operate. Variable frequency drives vfds popular speed control devices used in industrial, commercial and residential applications. The is5 adopts sensorless vector control algorithm, and it improves not only the torque control characteristics, but the speed controlability in an uncertain condition. A vfd is capable of adjusting both the speed and torque of an induction motor. As an example, ac 480v, 60hz supply is applied to the vfd which varies the signal voltage and frequency to have control of the speed. After receiving the ac drive, please check for the following.
A 50% drop in speed produces almost an 88% reduction in power required to turn the load. In this manual, safety messages are classified as follows. Variable frequency drives adjust your motor speed to closely match your output requirements, typically resulting in energy savings of 10 to 50%. Drv4 frequency mode keypad1 i012 p1 up io p2 down io40 fm output freqency io41 fm output gain 78% io42 detect frequency 51hz io43 d. A variable frequency drive vfd is a device that controls the voltage and frequency that is being supplied to a motor and therefore controls the speed of the motor and the system it is efficiency is improved. Thank you for purchasing lg variable frequency drives.
See the basic principle with the singlephase ac as the simplest example. The ls starvert is7 is a high performance vfd, available in 480v up to 500 hp, providing full torque and precise control. Head office lg twin towers, 20 yoidodong, youngdungpogu, seoul, 150721, korea. Benshaw offers an extensive range of rugged, reliable motor control solutions and accessories. Warning caution throughout this manual we use the following two illustrations to make you aware of safety. However, a over 500mm and b 200mm should be obtained for inverters with 40hp and above. As the first company to introduce a generalpurpose drive in korea and the. Jsmanuallsig5a frequencyinvertervfds jstechnik gmbh. Drive type and motor control algorithm will effect how a vfd trips on opl acs550 only trips in vector mode vfd faults. Inspect the unit to insure it was not damaged during shipment. Nov 27, 20 easy setup instructions for the lsis vfd ig5a. The auto tuning algorithm in is5 sets the motor factors automatically.
Variable frequency drive inverter is5 precise vector control standard vfd 3 phase 0. After the input power is applied or removed, the inverter will remain hot for. Thank you for purchasing ls variable frequency drives. A variablefrequency drive is a device used in a drive system consisting of the following three main subsystems. Our low voltage soft starters enable precise control and advanced protection for three phase motors and motordriven equipment, with flexible mounting, enclosure and communication options available to meet your most demanding application requirements. It is available in 480 volts from 1 to 30 horsepower.
Inverters variable frequency drives vfd plc xgt series glofagm series master k series hmi xgt panel xgt infou servo drive vsseries vpseries. They are used for running an ac motor at variable speeds or let them ramp up their speed to give them a smooth startup. The basic configuration of a variable frequency drive is as follows. Adjustable frequency drives also known as variable frequency drives adjust a motors speed to closely match output requirements, resulting in a typical energy savings of 10 to 50 percent. Maximum output voltage will not be greater than the input voltage. Contents introduction block diagram building blocks modes of operation vfd parameters some potential problems harmonics and thd recent improvements in the ffcl system. The variable frequency drive converts this line power into a pulsed output voltage that duplicates varying alternating current to a desired frequency speed. Our systems integration division can build custom drive panels as well.
This vfdv ac drive has gone through rigorous quality control tests at the factory before shipment. With more than 50 years of experience in variable speed drive business, driveswarehouse stocks a large selection of ac drives, dc drives, variable frequency drives vfd, variable speed drives, adjustable speed drives, adjustable frequency drives, combo ac motor and drive combination and dc motor and drive combination in a wide range of. The above figure shows how the voltage and frequency are varied by a variable frequency drive. Variable frequency drive vfd pakistan ie5 ic5 ig5a ip5a is5 is7. Warning caution throughout this manual we use the following two illustrations to make you aware of safety considerations. Other names for a vfd are variable speed drive, adjustable speed drive, adjustable frequency drive, ac drive, microdrive, and inverter. Output frequency vf ratio linear, square patter, user vf.
1366 1538 1311 1205 765 472 1527 880 541 733 360 938 1430 1456 28 101 1366 1099 262 1301 187 1348 1121 1270 91 38 745 879 124 1048 33 299