Temperature Derating - YASKAWA L1000A Technical Manual

Figure A.4

◆ Temperature Derating

To ensure the maximum performance life, the drive output current must be derated as shown in
is installed in areas with high ambient temperature or if drives are mounted side-by-side in a cabinet. In order to ensure
reliable drive overload protection, set parameters L8-12 and L8-35 according to the installation conditions.
■
Parameter Settings
No. Name
Ambient Temperature
L8-12
Setting
Installation Method
L8-35
Selection
IP00 Enclosure
Drive operation between -10 °C and 50 °C allows 100% continuous current without derating.
IP00 Enclosure with Top Protective Cover
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.
Figure A.5
YASKAWA ELECTRIC SIEP C710616 38A YASKAWA AC Drive L1000A Technical Manual
Drive Rated
70% of Drive Rated
0
Figure A.4 Carrier Frequency Derating (CIMR-L 4A0112 to 4A0260)
Adjust the drive overload (oL2) protection level when the drive is installed in an environment
that exceeds its ambient temperature rating.
0: IP00 Enclosure
2: IP00 Enclosure with Top Protective Cover
Drive Rating
(%)
100
85
0
-10
Figure A.5 Ambient Temperature and Installation Method Derating
4A0112 to 4A0260
5 kHz 10 kHz
Description
L8-35=0 : IP00 Enclosure
L8-35=2 : NEMA Type 1 Enclosure
L8-12
(Ambient temp : °C)
40 50
A.5 Drive Derating Data
YEA_
TMonly
Figure A.5 when the drive
Range Def.
-10 to 50 40 °C
Determined by
0 or 2
o2-04
YEA_
TMonly
A
333