328 YASKAWA TM.V1000.01 V1000 Drive Installation & Start-Up Manual (Preliminary 01-19-07)
A.5 Drive Derating Data
A.5 Drive Derating Data
The drive can be operated at above rated temperature, altitude and default carrier
frequency by derating the drive capacity. For example, a 10 amp continuous rated
drive may be operated at higher temperatures if it is only used to supply 8 amps
continuous.
◆ Carrier Frequency Derating
As the carrier frequency of the drive is increased above the factory setting the drive
capacity should be derated according to Figure A.1.
Figure A.1
Figure A.1 Carrier Frequency Derating
◆ Temperature Derating
As the ambient temperature for the drive is increased above the drive specification
the drive should be derated. Additionally parameter L8-35 Side-by-Side Selection
on page 395 should be set according to enclosure type and mounting method as
illustrated in Figure A.2 Ambient Temperature and Installation Method Derating
on page 329.
0&
200 V Class:
80% of HD
Drive
Rating
Carrier(C6-02)
400 V Class
60% of HD
*&
Carrier Frequency Derating
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