Phase-Loss Protection; Over-Current Stall Prevention During Acceleration - Delta VFD-V Series User Manual

06-02

Phase-Loss Protection

0 warn and keep operating
Settings
1 warn and ramp to stop
2 warn and coast to stop
The phase-loss protection is for the input side of the power phase-loss protection. The
drive will have influence on control characteristics and driver life when it operates the
input phase-loss. But it can be operated if its' output current is less than 50% of rated
current.
06-03

Over-Current Stall Prevention during Acceleration

Settings 10~250%
This value sets the current limit for the Over Current Stall Prevention function. During
acceleration, a heavy loaded motor may require very high current. If the current
reaches the value programmed in Pr 06-03, the drive will stop acceleration, hold speed
and wait for the current to dissipate in the motor. Once the current has fallen below the
limit set in 06-03, the drive will begin to accelerate to command speed as shown in the
graph below.
06-03
DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED
5-47
VFD-V Series
Factory setting 0
Factory setting 170
Time
5