Delta VFD-B Series - Page 131

Chapter 5 Parameters|VFD-B-P Series
5-66 Revision April 2009, SW V1.00
 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.
 The control model is set by Pr.00-09.
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
V/f control Settings 20 to 150% Factory Setting: 120
Vector control 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.
 The control model is set by Pr.00-09.
Over-Current
Detection Level
06-02
Output C urre nt
Output
Frequency
Over-Current Stall Prevention during
Operation, output frequency decrease
over-current stall prevention during operation