A.6 Drive Derating DataYASKAWA ELECTRIC SIEP C710616 27G YASKAWA AC Drive A1000 Technical Manual 447SpecificationsAFigure A.5Figure A.5 Carrier Frequency Derating (CIMR-A4A0515 and 4A0675)Figure A.6Figure A.6 Carrier Frequency Derating (CIMR-A4A0930 and 4A1200) Temperature DeratingTo ensure the maximum performance life, the drives output current must be derated like shown in Figure A.7 when thedrive is installed in areas with high ambient temperature or if drives are Side-by-Side mounted in a cabinet. In order toensure reliable drive overload protection, the parameters L8-12 and L8-35 must also be set according to the installationconditions. Parameter Settings0: IP00 EnclosureDrive operation between -10C and 50C allows 100% continuous current without derating.1: Side-by-Side MountingDrive operation between -10C and 30C allows 100% continuous current without derating. Operation between 30Cand 50C requires output current derating.2: IP20/NEMA 1, UL Type 1 EnclosureDrive operation between -10C and 40C allows 100% continuous current without derating. Operation between 40Cand 50C requires output current derating.No. Name Description Range Def.L8-12 Ambient TemperatureSettingAdjust the drive overload (oL2) protection level when the drive is installed in an environmentthat exceeds its ambient temperature rating. -10 to 50 40°CL8-35 Installation MethodSelection0: IP00 Enclosure1: Side-by-Side Mounting2: IP20/NEMA 1, UL Type 1 Enclosure3: Finless Drive or External Heatsink Installation0 to 3 05 kHz2 kHz04A0515, 4A0675Normal DutyHeavy Duty83% of HD5 kHz2 kHzNormal DutyHeavy Duty62.5% of HD04A09304A1200
