YASKAWA J1000 Technical Manual page 120

Setting 0: Disabled
Disables the braking resistor protection. Use this setting for any braking option other than the Yaskawa ERF Type resistor.
Setting 1: Enabled
Enables the protection for ERF type resistors.
n L8-05: Input Phase Loss Protection Selection
Enables or disables the input phase loss detection.
No.
L8-05
Setting 0: Disabled
Setting 1: Enabled
Enables the input phase loss detection. As detection is performed by measuring the DC bus ripple, a phase loss fault (PF) can
also be triggered by power supply voltage imbalance or main circuit capacitor deterioration. Detection is disabled when:
• The drive is decelerating.
• No Run command is active.
• Output current is less than or equal to 30% of the drive rated current.
n 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 60 s 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.
n 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
n L8-18: Software CLA Selection
The Software Current Limit (CLA) is a drive protection function that prevents output transistor failures caused by high current.
Parameter L8-18 enables or disables this function.
Note: This setting should not be changed unless absolutely necessary. For proper drive protection and operation leave the Software CLA function
enabled.
No.
L8-18
Setting 0: Disabled
The drive may trip on an oC fault if the load is too heavy or the acceleration is too short.
Setting 1: Enabled
When the soft CLA current level is reached, the drive reduces the output voltage in order to reduce the current. If the current
level drops below the Software CLA level, then normal operation will continue.
YASKAWA ELECTRIC SIEP C710606 31B YASKAWA AC Drive – J1000 Technical Manual
Name
Input Phase Loss Detection Selection
Name
Fan Operation Selection
Name
Ambient Temperature Setting
Name
Software Current Limit Selection
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5.7 L: Protection Functions
Setting Range
0 or 1
Setting Range
0 or 1
Setting Range
-10 to +50 °C
Setting Range
0 or 1
Default
1
Default
0
Default
30 °C
5
Default
1
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