LiteOn EVO 6800 Series - P7 Drive Protection

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set for unsigned speed detection, the negative values are treated as positive values.
 P6-08 Mechanical Weakening Detection Time
If the condition set in P6-06 lasts the time set in this parameter, Mechanical Weakening is
detected.
No.
Name
Setting Range
Default
P6-08
Mechanical Weakening Detection Time
0.0 to 10.0 s
0.1 s
 P6-09 Mechanical Weakening Detection Start Time
Sets the cumulative drive operation time to activate Mechanical Weakening Detection. If U3-00
reaches the value set in this parameter, Mechanical Weakening is detected.
No.
Name
Setting Range
Default
P7 Drive Protection
 P7-00 Input Phase Loss Protection
Enables or disables the input phase loss detection.
No.
Name
Setting Range
Default
P7-00
Input Phase Loss Protection
0, 1
0
0 : Disabled
1 : Enabled
When a power supply voltage is imbalance or main circuit capacitor is weakening, the input
phase loss will be detected and a PF (Phase Loss) fault will be triggered.
The detection is disabled in the following situations.
· The drive is decelerating
· No Run command is entered
· Output current is below or equal to 30% of the drive rated current
 P7-01 Output Phase Loss Protection
Sets the output phase loss detection. The output phase loss will be detected when the output
current is less than 5% of the drive rated output current.
Note:
1. If the motor rated current is too small compared with the drive rating, output phase loss detection may be
mistakenly triggered. Set P7-01 to 0 (disabled) in this situation .
2. Output phase loss detection is not provided when the drive is running a PM motor with light load.