YASKAWA A1000 Series Technical Manual page 271

No.
L8-07
Setting 0: Disabled
Setting 1: Fault when one phase is lost
An output phase loss fault (LF) is triggered when one output phase is lost. The output shuts off and the motor coasts to
stop.
Setting 2: Fault when two phases are lost
An output phase loss fault (LF) is triggered when two output phases are lost. The output shuts off and the motor coasts to
stop.
■ L8-09: Output Ground Fault Detection Selection
Enables or disables the output ground fault detection.
No.
L8-09
Setting 0: Disabled
Ground faults are not detected.
Setting 1: Enabled
A ground fault (GF) is triggered when high leakage current or a ground short circuit occurs in one or two output phases.
L8-10: Heatsink Cooling Fan Operation Selection
■
Selects the heatsink cooling fan operation.
No.
L8-10
Setting 0: Run with timer
The fan is switched on when a Run command is active. It is switched off with the delay set in parameter L8-11 after the
Run command has been released. Using this setting extends the fan lifetime.
Setting 1: Run always
The fan runs whenever power is supplied to the drive.
L8-11: Heatsink Cooling Fan Off-Delay Time
■
Sets the cooling fan switch off-delay time if parameter L8-10 is set to 0.
No.
L8-11
L8-12: Ambient Temperature Setting
■
If the temperature where the drive is mounted is above the specified values, the drive rated current must be reduced for
optimal performance life. By setting the ambient temperature to parameter L8-12 and adjusting the installation method
setting in L8-35, the drive rating automatically adapts to safe values.
No.
L8-12
YASKAWA ELECTRIC SIEP C710616 27C YASKAWA AC Drive A1000 Technical Manual
Name
Output Phase Loss Protection Selection
Name
Output Ground Fault Detection Selection
Name
Heatsink Cooling Fan Operation Selection
Name
Heatsink Cooling Fan Off-Delay Time
Name
Ambient Temperature Setting
5.8 L: Protection Functions
Setting Range Default
0 to 2
Setting Range Default
0 or 1
Setting Range Default
0 or 1
Setting Range Default
0 to 300 s
Setting Range Default
-10 to 50 °C
0
1
0
60 s
5
40 °C
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