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

Chapter 4 Parameters
4-111
06-02 Phase-loss Protection
Control
mode
VF VFPG SVC FOCPG TQCPG
Factory Setting: 0
Settings 0 Warn and keep operation
1 Warn and ramp to stop
2 Warn and coast to stop
 It is used to set the phase-loss treatment. The phase-loss will effect driver’s control
characteristic and life.
06-03 Over-Current Stall Prevention during Acceleration Unit: 1
Control
mode
VF VFPG SVC
Factory Setting: 170
Settings 00~250% (100%: drive’s rated current)
 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
Output
Frequency
Over-Current Stall
prevention during
Acceleration,
frequency held
time
actual acceleration time when over-current stall
prevention is enabled
current
06-04
Over-current Stall Prevention during Operation
Unit: 1
Control
mode
VF VFPG SVC
Factory Setting: 170
Settings 00 to 250% (100%: drive’s rated current)
 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.