Temperature Derating - YASKAWA A1000 Series Technical Manual

Figure A.4
Figure A.5
Figure A.6

◆ Temperature Derating

To ensure the maximum performance life, the drives output current must be derated like shown in
drive is installed in areas with high ambient temperature or if drives are Side-by-Side mounted in a cabinet. In order to
ensure reliable drive overload protection, the parameters L8-12 and L8-35 must also be set according to the installation
conditions.
Parameter Settings
■
No. Name
Ambient Temperature
L8-12
Setting
Installation Method
L8-35
Selection
YASKAWA ELECTRIC SIEP C710616 27C YASKAWA AC Drive A1000 Technical Manual
Normal Duty
Heavy Duty
70% of HD
0 2 kHz
Figure A.4 Carrier Frequency Derating (CIMR-A 4A0139 to 4A0362)
Normal Duty
Heavy Duty
0
Figure A.5 Carrier Frequency Derating (CIMR-A4A0414)
Normal Duty
Heavy Duty
83% of HD
0
Figure A.6 Carrier Frequency Derating (CIMR-A 4A0515 and 4A0675)
Adjust the drive overload (oL2) protection level when the drive is installed in an environment
that exceeds its ambient temperature rating.
0: IP00 Enclosure
1: Side-by-Side Mounting
2: NEMA Type 1 Enclosure
3: Finless Drive or External Heatsink Installation
4A0139 to 4A0362
5 kHz 10 kHz
4A0414
2 kHz 5 kHz
4A0515∼4A0675
2 kHz
5 kHz
Description
A.6 Drive Derating Data
YEG
YEG
YEG
Figure A.7
Range
-10 to 50
0 to 3
when the
Def.
40°C
A
0
395