YASKAWA GA800 Programming Manual page 477

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L8-07: Output Phase Loss Protection Sel
No.
Name
(Hex.)
L8-07 Output Phase Loss
Protection Sel
(04B3)
Note:
The drive can incorrectly start output phase loss detection in these conditions:
• The motor rated current is very small compared to the drive rating.
• The drive is operating a PM motor with a small load.
0 : Disabled
1 : Fault when one phase is lost
If the drive loses one output phase, it will trigger LF [Output Phase Loss].
The output turns off and the motor coasts to stop.
2 : Fault when two phases are lost
If the drive loses more than one output phase, it will trigger LF [Output Phase Loss].
The output turns off and the motor coasts to stop.
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L8-09: Output Ground Fault Detection
No.
Name
(Hex.)
L8-09 Output Ground Fault
Detection
(04B5)
0 : Disabled
The drive will not detect ground faults.
1 : Enabled
If there is high leakage current or a ground short circuit in one or two output phases, the drive will detect GF [Ground
Fault].
Note:
If the ground path impedance is low, oC [Overcurrent], SC [Out Short Circuit or IGBT Fault], or ov [DC Bus Overvoltage] can stop the
motor.
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L8-10: Heatsink Fan Operation Selection
No.
Name
(Hex.)
L8-10 Heatsink Fan Operation
Selection
(04B6)
0 : During Run, w/ L8-11 Off-Delay
The drive turns on the fan when a Run command is active.
1 : Always On
The fan turns on when you supply power to the drive. When you release the Run command and the delay time set in
L8-11 [HeatsinkCoolingFan Off DelayTime] is expired, the fan stops. his setting extends the fan lifetime.
2 : On when Drive Temp Reaches L8-64
The fan turns on when the drive detects that the main circuit is overheating.
YASKAWA TOEPYAIGA8002B GA800 Drive Programming
V/f CL-V/f OLV CLV AOLV
Sets the function to enable and disable output phase loss detection. The drive starts output phase loss
detection when the output current decreases to less than 5% of the drive rated current.
V/f CL-V/f OLV CLV AOLV
Sets the function to enable and disable ground fault protection.
V/f CL-V/f OLV CLV AOLV
Sets operation of the heatsink cooling fan.
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
2.9 L: Protection Functions
Default
(Range)
1
(0 - 2)
Default
(Range)
Determined by o2-04
(0, 1)
Default
(Range)
0
(0 - 2)
2
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