Honeywell VFD CORE

CHAPTER 12: DESCRIPTION OF PARAMETER SETTINGS
177 63-4528—04
• It is a protection for drive to auto decrease output frequency when the motor is over-load abruptly during motor constant
operation.
• If the output current exceeds the setting specified in Pr.06-03 when the drive is operating, the drive will decrease its output
frequency (according to Pr.06-04) to prevent the motor stall. If the output current is lower than the setting specified in Pr.06-03,
the drive will accelerate (according to Pr.06-04) again to catch up with the set frequency command value.
a
06 - 03 Over-current Stall Prevention during Operation
Settings Heavy duty: 0~160%, 100% drive’s rated current Factory Setting: 120%
Normal duty: 0~130%, 100% drive’s rated current Factory Setting: 120%
M33667
TIME
06-02
OVER-
CURRENT
DETECTION
LEVEL
OVER-CURRENT STALL
PREVENTION DURING
ACCELERATION,
FREQUENCY HELD
ACTUAL ACCELERATION TIME WHEN OVER-
CURRENT STALL PREVENTION IS ENABLED
ORIGINAL SETTING OF
ACCELERATION TIME
OUTPUT
CURRENT
OUTPUT
FREQUENCY
SETTING
FREQUENCY
M33668
TIME
PR. 06-03 SETTING
RATED DRIVE
CURRENT x 5%
OVER-CURRENT
DETECTION LEVEL
06-03
DECREASES BY
DECELERATION TIME
OVER-CURRENT STALL PREVENTION DURING OPERATION
OVER-CURRENT STALL
PREVENTION DURING
OPERATION, OUTPUT
FREQUENCY DECREASES
OUTPUT
FREQUENCY
CURRENT
PR. 06-03 SETTING