Delta Electronics VFD-EL manual 06.01, 06.02

time

Chapter 4 Parameters

06.01	Over-Current Stall Prevention during Acceleration		Unit: 1
	Settings	20 to 250%	Factory Setting: 170
		0: disable

A setting of 100% is equal to the Rated Output Current of the drive.

During acceleration, the AC drive output current may increase abruptly and exceed the value specified by Pr.06.01 due to rapid acceleration or excessive load on the motor. When this function is enabled, the AC drive will stop accelerating and keep the output frequency constant until the current drops below the maximum value.

06.01	output current
Over-Current
Detection
Level	setting
	frequency
Over-Current Stall
prevention during	Output
Acceleration,
frequency held	Frequency

previous acceleration time

actual acceleration time when over-current stall prevention is enabled

06.02	Over-current Stall Prevention during Operation		Unit: 1
	Settings	20 to 250%	Factory Setting: 170
		0: disable

If the output current exceeds the setting specified in Pr.06.02 when the drive is operating, the drive will decrease its output frequency to prevent the motor stall. If the output current is lower than the setting specified in Pr.06.02, the drive will accelerate again to catch up with the set frequency command value.

4-68 Revision August 2008, 2ELE, V1.02