Delta Electronics VFD-EL manual over-current stall prevention during operation, 06.04, 06.05

Chapter 4 Parameters

	Over-Current Stall
Over-Current	Prevention during
	Operation, output
Detection	frequency decrease
Level		Output Current
06.02

Output

Frequency

over-current stall prevention during operation

06.03Over-Torque Detection Mode (OL2)

		Factory Setting: 0
Settings	0	Over-Torque detection disabled.
	1	Over-Torque detection enabled during constant speed operation.
		After over-torque is detected, keep running until OL1 or OL occurs.
	2	Over-Torque detection enabled during constant speed operation.
		After over-torque is detected, stop running.
	3	Over-Torque detection enabled during acceleration. After over-
		torque is detected, keep running until OL1 or OL occurs.
	4	Over-Torque detection enabled during acceleration. After over-
		torque is detected, stop running.

This parameter determines the operation mode of the drive after the over-torque (OL2) is

detected via the following method: if the output current exceeds the over-torque detection level

(Pr.06.04) longer than the setting of Pr.06.05 Over-Torque Detection Time, the warning

message “OL2” is displayed. If a Multi-functional Output Terminal is set to over-torque

detection (Pr.03.00=04), the output is on. Please refer to Pr.03.00 for details.

06.04	Over-Torque Detection Level (OL2)		Unit: 1
	Settings	10 to 200%	Factory Setting: 150

This setting is proportional to the Rated Output Current of the drive.

06.05	Over-Torque Detection Time (OL2)		Unit: 0.1
	Settings	0.1 to 60.0 sec	Factory Setting: 0.1

Revision August 2008, 2ELE, V1.02 4-69