Yaskawa VS-616G5 Series Revision F Programming Manual User Manual
Page 118
118
VS-616G5 Programming Manual
Section L: Protection Parameters
L8 Hardware 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
RMS
) for each of the phases
and compares it with an internal output detection level. If I
RMS
decreases to or below the detection level
for 10 seconds, an output phase loss (LF) fault occurs, and the motor coasts to stop.
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”.
L8-07
Output Phase Loss Protection
Ph Loss Out Sel
A
A
A
A
Setting
Description
0
Output phase loss protection is disabled (factory default).
1
Output phase loss protection is enabled.
L8-10
Ground Fault Protection
Ground Fault Sel
A
A
A
A
Setting
Description
0
Disabled - Ground fault protection is disabled
1
Enabled - Ground fault protection is enabled. (factory default).