YASKAWA T1000V Technical Manual page 202

5.8 L: Protection Functions
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, the drive rating automatically adapts to safe values.
No.
L8-12
L8-15: oL2 Characteristics Selection at Low Speed
■
Selects whether the drive overload capability (oL fault detection level) is reduced at low speeds in order to prevent
premature output transistor failures.
No.
L8-15
Setting 0: Disabled
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: Enabled
The overload protection level (oL2 fault detection level) is automatically reduced at speeds below 6 Hz.
202
Name
Output Ground Fault Detection Selection
Name
Heatsink Cooling Fan Operation Selection
Name
Heatsink Cooling Fan Off-Delay Time
Name
Ambient Temperature Setting
Name
oL2 Characteristics Selection at Low Speed
YASKAWA ELECTRIC SIEP C710606 44B YASKAWA AC Drive T1000V Technical Manual
Setting Range
0 or 1
Setting Range
0 or 1
Setting Range
0 to 300 s
Setting Range
-10 to +50 °C
Setting Range
0 or 1
Default
Determined
by o2-04
Default
0
Default
60 s
Default
40 °C
Default
1