Yaskawa AC Drive-P1000 Industrial Fan User Manual
Page 259
Setting 2: Fault when Two Phases Are Lost
An output phase loss fault (LF) is triggered when two or more output phases are lost. The output shuts off and the motor coasts
to stop.
n
L8-09: Output Ground Fault Detection Selection
Enables or disables the output ground fault detection.
No.
Name
Setting Range
Default
L8-09
Output Ground Fault Detection Selection
0, 1
1
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.
n
L8-10: Heatsink Cooling Fan Operation Selection
Selects the heatsink cooling fan operation.
No.
Name
Setting Range
Default
L8-10
Heatsink Cooling Fan Operation Selection
0, 1
0
Setting 0: Run with Timer
The fan is switched on when a Run command is active and switched off with the delay set to parameter L8-11 after releasing
the Run command. This setting extends the fan lifetime.
Setting 1: Run Always
The fan runs when power is supplied to the drive.
n
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.
Name
Setting Range
Default
L8-11
Heatsink Cooling Fan Off-Delay Time
0 to 300 s
60 s
n
L8-12: Ambient Temperature Setting
Automatically adapts the drive rated current to safe values when used with parameter L8-35. This eliminates the need to reduce
the drive rated current when the temperature where the drive is mounted is above the specified values.
for details.
No.
Name
Setting Range
Default
L8-12
Ambient Temperature Setting
-10 to +50 °C
40 °C
n
L8-15: oL2 Characteristics Selection at Low Speeds
Selects whether the drive overload capability (oL fault detection level) is reduced at low speeds to prevent premature output
transistor failures.
Note:
Contact Yaskawa for consultation before disabling this function. Disabling this function may shorten the operating life of the power
transistors.
No.
Name
Setting Range
Default
L8-15
oL2 Characteristics Selection at Low Speed
0, 1
1
Setting 0: Protection Disabled at Low Speed
The overload protection level is not reduced. Frequently operating the drive with high output current at low speed can lead to
premature drive faults.
Setting 1: Protection Enabled at Low Speed
The overload protection level (oL2 fault detection level) is automatically reduced at speeds below 6 Hz. At zero speed, the
overload is derated by 50%.
5.8 L: Protection Functions
YASKAWA SIEP YAIP1U 01B AC Drive - P1000 Technical Manual
259
5
Parameter Details