YASKAWA FSDrive-MV1000 Parameter Manual page 214

2.8 L: Protection Functions
L8-09: Output Ground Fault Detection Selection
■
Enables or disables the output ground fault detection.
No.
L8-09 Output Ground Fault Detection Selection
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 Heatsink Cooling Fan Operation Selection
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: Operates when the Uv (DC bus undervoltage) fault has been cleared
The fan starts operating when the voltage of the DC bus rises above the Undervoltage Detection Level (Uv) set in L2-05.
Setting 2: Operates whenever the control power supply is ON
The cooling fan runs all the time while control power is being 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 Heatsink Cooling Fan Off Delay Time
L8-15: oL2 Characteristics Selection at Low Speeds
■
Selects whether the drive overload capability (oL fault detection level) is reduced at low speeds in order to prevent
premature output transistor failures.
Note: Contact Yaskawa for consultation first before disabling this setting.
No.
L8-15 oL2 Characteristics Selection at Low Speeds
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.
214
Name
Name
Name
Name
Setting Range
0 or 1
Setting Range
0 to 2
Setting Range
0 to 1800 s
Setting Range
0 or 1
YASKAWA ELECTRIC EZZ010930 FSDrive-MV1000 Parameter Guide
Default
1
Default
1
Default
600 s
Default
1