Yaskawa D1000 Series Power Regenerative Converter - Manual (Page 178)

178 YASKAWA ELECTRIC TOEP C710656 07C YASKAWA Power Regenerative Converter - D1000 Instruction Manual
A.4 Derating Data
A.4 Derating Data
The converter can be operated at above the rated temperature, altitude, and default carrier frequency by derating the
converter capacity.
◆ Temperature Derating
To ensure the maximum performance life, the converter output current must be derated as shown in Figure A.1 when the
converter is installed in areas with high ambient temperature or if converters are mounted side-by-side in a cabinet. In
order to ensure reliable converter overload protection, set parameters L8-35 according to the installation conditions.
■ Parameter Settings
If the ambient temperature is higher than the rating or if converters are installed side by side in the control panel, you must
set the L8-12 and L8-35 parameters according to the installation conditions. Derate the output current according to
Figure A.1
Setting 0: IP00/IP20/Open Type Enclosure
Converter operation between -10 °C and +50°C allows 100% continuous current without derating.
Setting 1: Side-by-Side Mounting
Converter 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 3: External Heatsink Installation
Converter 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.1
Figure A.1 Ambient Temperature and Installation Method Derating
◆ Altitude Derating
Standard ratings are valid for installation altitudes up to 1000 m. For installations from 1000 m to 3000 m, the converter
rated voltage and the rated output current must be derated for 1% per 100 m.
No. Name Description Setting Value Default Setting
L8-12
Ambient Temperature
Setting
Adjust the converter overload (oL2) protection level
when the converter is installed in an environment that
exceeds its ambient temperature rating.
-10 to +50 +40 °C
L8-35
Installation Method
Selection
0: IP00/IP20/Open Type Enclosure
1: Side-by-Side Mounting
3: External Heatsink Installation
0, 1, 3
Default setting is
determined by o2-04
(Drive Model
Selection).
100
85
70
55
0
L8-35=3: External Heatsink Installation
L8-35=0 ：IP00/IP20/Open Type Enclosure
30 -10 40 50
L8-12
(Ambient temp: °C)
L8-35=1: Side-by-Side Mounting
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