Temperature Derating - YASKAWA E1000 Technical Manual

Figure A.4
Figure A.5

◆ 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
Setting: 0 IP00 Enclosure
Drive operation between -10°C and 50°C allows 100% continuous current without derating.
Setting: 1 Side-by-Side Mounting
Drive operation between -10°C and 30°C allows 100% continuous current without derating. Operation between 30°C
and 50°C requires output current derating.
Setting: 2 IP20/NEMA 1, UL Type 1 Enclosure
Drive operation between -10°C and 40°C allows 100% continuous current without derating. Operation between 40°C
and 50°C requires output current derating.
Setting: 3 External Heatsink Installation, Finless Drive
Drive operation between -10°C and 40°C allows 100% continuous current without derating. Operation between 40°C
and 50°C requires output current derating.
YASKAWA ELECTRIC SIEP C710616 35D YASKAWA AC Drive E1000 Technical Manual
Drive Rated
70% of Drive Rated
0 2 kHz
Figure A.4 Carrier Frequency Derating (CIMR-E4A0139 to 4A0362)
Drive Rated
62.5% of HD
0
Figure A.5 Carrier Frequency Derating (CIMR-E4A0930 and 4A1200)
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: IP20/NEMA 1, UL Type 1 Enclosure
3: Finless Drive or External Heatsink Installation
4A0139 to 4A0362
5 kHz 10 kHz
4A0930 and 4A1200
2 kHz
5 kHz
Description
A.5 Drive Derating Data
YEC_
TMonly
YEC_TMon -
ly
Figure A.6
Range
-10 to 50
0 to 3
when the
Def.
40°C
0
A
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