A.6 Drive Derating DataThe drive can be operated at above rated temperature, altitude and default carrier frequency by derating the drive capacity.u Carrier Frequency DeratingDerate drive capacity using Figure A.1 as the carrier frequency of the drive increases above the factory setting.ND10 (8) 150HD2DriveRatingCarrier Frequency (C6-02)200 V Class:80% of HD400 V Class:60% of HDCarrier Frequency DeratingFigure A.1 Carrier Frequency Deratingu Temperature DeratingAs the ambient temperature for the drive is increased above the drive specification the drive should be derated. Additionallyparameter L8-35 Installation Method Selection on page 186 should be set according to enclosure type and mounting methodas illustrated in Figure A.2.n Output Current Derating Due to Ambient TemperatureSet L8-12 and L8-35 according to the installation conditions when the ambient temperature is above the drive specificationor if drives are side-by-side mounted in a cabinet. The output current is derated as shown in Figure A.2.No. Name Description Range Def.L8-12 AmbientTemperature Setting Adjust the drive overload (oL2) protection level when the drive is installedin an environment that exceeds its ambient temperature rating. -10 to 50 30 °CL8-35 Installation MethodSelection0: IP20/IP00 Drive1: Side-by-Side Mounting2: NEMA Type 1 Drive <1>3: Finless Drive or External Heatsink Installation0 to 3 0<1> This selection assumes that the drive is fitted with the NEMA Type 1 Kit option.40 50030 o3550%70%80%85%100%oooDriveRatingAmbient temp CParameter L8-12Parameter L8-35 = 0 (IP20/IP00 Drive)Parameter L8-35 = 2(NEMA Type 1 Drive)Parameter L8-35 = 1(Side-by-side Mounting)Parameter L8-35 = 3(Finless Drive or ExternalHeatsink Installation)Figure A.2 Ambient Temperature and Installation Method Deratingu Altitude DeratingThe drive standard ratings are valid for an installation altitude up to 1000 m. If the altitude exceeds 1000 m, both the driveinput voltage and the rated output current must be derated for 1% per 100 m. The maximum altitude is 3000 m.A.6 Drive Derating Data186 YASKAWA ELECTRIC SIEP C710606 31B YASKAWA AC Drive – J1000 Technical Manualhttp://nicontrols.com
