YASKAWA VS-616G5 Series Programming Manual page 118

Section L: Protection Parameters
L8 Hardware Protection
L8-07 Output Phase Loss Protection
The output phase loss detection circuit monitors the DCCT and activates when one of the output
phases are lost. The detection circuit calculates the RMS current value (I
and compares it with an internal output detection level. If I
for 10 seconds, an output phase loss (LF) fault occurs, and the motor coasts to stop.
Setting
L8-10 Ground Fault Protection
The ground fault detection circuit monitors the output current and activates when one of the output
phases is connected to ground.
A ground fault will occur when the inverter output grounding current has exceeded 50% of the inverter
rated current.
When a ground fault condition occurs, the following fault code will be displayed: "GF Ground Fault".
Setting
118
0
Output phase loss protection is disabled (factory default).
1 Output phase loss protection is enabled.
0 Disabled - Ground fault protection is disabled
1
Enabled - Ground fault protection is enabled. (factory default).
Ph Loss Out Sel
decreases to or below the detection level
RMS
Description
Ground Fault Sel
Description
A A A
) for each of the phases
RMS
A A A
VS-616G5 Programming Manual
A
A