Variable Frequency Drive Controllers
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How to connect VFD that is use for motor speed control -3 phases, 440 Volt… © By: Dave Rongey |
Electrical Question from Glabrous about a Variable Frequency Drive
Background: Glabrous, a Electrician from Yangon,Myanmar
[ad#block]Question: I have a little problem. Please answer me.
How to connect VFD (it is use for motor speed control -3 phases, 440 Volt (such as 55KW, 22KW,15KW motors) ) with its control who operator use? What wiring diagrams can use?
Additional Comments: Sure; I think this website can help me and other.
Dave’s Reply:
Thanks for your electrical question Glabrous.
Yes – I am familiar with VFD, Variable Frequency Drives and I have installed quite a few in 3 phase 480 volt motor control applications including large industrial pumps and air handler units. The VFD Control Interface, also known as a Human Machine Interface (HMI) provides start, stop and speed adjustments. The HMI may have a keypad and display screen or led indicator lights to provide information about the settings and operation of the VFD unit. Each VFD unit comes with a helpful installation manual complete with wiring diagrams.
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