Phase-Loss Protection; Over-Current Stall Prevention During Acceleration; Over-Current Stall Prevention During Operation - Delta VFD-VE User Manual

Phase-loss Protection
06-02
Control
VF VFPG
mode
Settings

It is used to set the phase-loss treatment. The phase-loss will effect driver's control
characteristic and life.
Over-Current Stall Prevention during Acceleration
06-03
Control
VF VFPG
mode
Settings

During acceleration, the AC drive output current may increase abruptly and exceed the
value specified by Pr.06-03 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.
06-03
Over-Current
Detection
Level
Over-current Stall Prevention during Operation
06-04
Control
VF VFPG
mode
Settings

If the output current exceeds the setting specified in Pr.06-04 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.06-04, the drive will accelerate
again to catch up with the set frequency command value.
SVC FOCPG TQCPG
0 Warn and keep operation
1 Warn and ramp to stop
2 Warn and coast to stop
SVC
00~250% (100%: drive's rated current)
actual acceleration time when over-current stall
prevention is enabled
SVC
00 to 250% (100%: drive's rated current)
Over-Current Stall
prevention during
Acceleration,
frequency held
Chapter 4 Parameters
Factory Setting: 0
Factory Setting: 170
current
Output
Frequency
time
Factory Setting: 170
Unit: 1
Unit: 1
4-111