Delta VFD-B User Manual

Chapter 5 Parameters|VFD-B Series
5-66 Revision July 2008, BE16, SW V4.08 & V5.00
06 - 01
Over-Current Stall Prevention during Acceleration
Unit: 1
Settings 20 to 250% Factory Setting: 170
 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
Over-Current
Detection
Level
Output
Frequency
Over-Current Stall
prevention during
Acceleration,
frequency held
output current
time
setting
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
 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.

Delta VFD-B Specifications

General

Series	VFD-B
Power Range	0.4kW to 15kW
Control Method	V/F Control, Sensorless Vector Control
Overload Capacity	150% for 60 seconds
Braking Unit	Built-in
Communication	RS-485
Protection Features	Over-voltage, Over-current, Overheat, Under-voltage, Ground fault, Short circuit