phatcreators
Full Member level 5
What would happen bad if motor's rated FLA is 39 A (Amps) & parameter set on drive is 45 A (Amps) ?
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It involves a risk of overheating the windings and possibly damaging the motor. The exact answer depends on a number of details.What would happen bad if motor's rated FLA is 39 A (Amps) & parameter set on drive is 45 A (Amps) ?
With VFD operated motors, motor voltage is varied according to speed and selected f/V characteristic. The interesting parameter for rated operation is motor current.ok, but if the motor has to run on half voltage lets say about 250 V or about 300 V than the full voltage i.e 380 to 400 Vac for about 15 minutes or so , what would happen bad ?
It doesn't. The only relation of carrier frequency to current is that a lower carrier frequency allows slightly higher VFD output currents, at the expense of creating more audible noise.You should decrease the carrier frequency because it would reduce the amps at low speeds also