Considering derating, For details – Yaskawa AC Drive-P1000 Industrial Fan User Manual
Page 260
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L8-18: Software Current Limit Selection
Enables and disables the Software Current Limit (CLA) protection function to prevent main circuit transistor failures caused
by high current.
Note:
Do not change this setting unless absolutely necessary.
No.
Name
Setting Range
Default
L8-18
Software Current Limit Selection
0, 1
0
Setting 0: Software CLA Disabled
The drive may trip on an oC fault if the load is too heavy or the acceleration is too short.
Setting 1: Software CLA Enabled
When the Software CLA current level is reached, the drive reduces the output voltage to reduce the current. Normal operation
continues when the current level drops below the Software CLA level.
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L8-32: Cooling Fan Failure Selection
Determines drive operation when a FAn fault occurs.
No.
Name
Setting Range
Default
L8-32
Cooling Fan Failure Selection
0 to 4
1
Setting 0: Ramp to Stop
The drive stops the motor using the deceleration time set in parameter C1-02.
Setting 1: Coast to Stop
The drive output is switched off and the motor coasts to a stop.
Setting 2: Fast Stop
The drive stops the motor using the Fast stop time set in parameter C1-09.
Setting 3: Alarm Only
The operation is continued and a FAn alarm is displayed on the digital operator.
Setting 4: Operation with Reduced Speed
The operation is continued, but the speed is reduced to the level set in parameter L8-19.
Note:
“FAn” is detected as an error when Settings 0 or 2 are selected; it is detected as an alarm when Settings 3 or 4 are selected.
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L8-35: Installation Method Selection
for details.
Note:
1. Initialization does not reset this parameter.
2. The value is preset to the appropriate value when the drive is shipped. Change the value only when using Side-by-Side installation or
when mounting a standard drive with the heatsink outside the cabinet.
No.
Name
Setting Range
Default
L8-35
Installation Method Selection
0 to 3
<1>
<1> Default setting is determined by drive model.
Setting 2: Model code 2A0004 to 2A0211, 4A0002 to 4A0165, and 5A0003 to 5A0242
Setting 0: Model code 2A0250 to 2A0415 and 4A0208 to 4A1200.
Setting 0: IP00/Open-Chassis Enclosure
For an Open Type enclosure drive installed with at a minimum of 30 mm space to the next drive or a cabinet wall.
Setting 1: Side-by-Side Mounting
For drives mounted according to Yaskawa Side-by-Side specifications (requires 2 mm between drives).
Setting 2: IP20/NEMA Type 1 Enclosure
For drives compliant with IP20/NEMA Type 1 enclosure specifications.
Setting 3: Finless Drive or External Heatsink Installation
For finless drives or a standard drive mounted with the heatsink outside the cabinet or enclosure panel.
5.8 L: Protection Functions
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YASKAWA SIEP YAIP1U 01B AC Drive - P1000 Technical Manual