Delta VFD300C43S-HS User Manual page 370

Chapter 12 Description of Parameter SettingsC2000-HS
Over-current Stall Prevention during Operation

Settings
 This parameter only works in VF, VFPG, and SVC control modes.
 This is a protection for the drive to decrease output frequency automatically when the motor
over-loads abruptly during constant motor operation.
 If the output current exceeds the setting value for Pr. 06-04 when the drive is operating, the drive
decreases output frequency (according to Pr. 06-05) to prevent the motor from stalling. If the
output current is lower than the setting value for Pr. 06-04, the drive accelerates (according to Pr.
06-05) again to the setting frequency.
Acceleration / Deceleration Time Selection of Stall Prevention at Constant Speed

Settings
 Sets the acceleration / deceleration time selection when stall prevention occurs at constant
speed.
0–160% (100%: drive's rated current)
0: By current acceleration / deceleration time
1: By the 1 st acceleration / deceleration time
2: By the 2 acceleration / deceleration time
nd
3: By the 3 rd acceleration / deceleration time
4: By the 4 th acceleration / deceleration time
5: By automatic acceleration / deceleration
12.1-06-4
Default: 120
Default: 0