u
Temperature Derating
To ensure the maximum performance life, the drive output current must be derated as shown in Figure A.1 when the drive 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.
n
Parameter Settings
No. Name Description Range Def.
L8-12
Ambient
Temperature Setting
Adjust the drive overload (oL2) protection level when the drive is installed
in an environment that exceeds its ambient temperature rating.
-10 to +50 +40 °C
L8-35
Installation Method
Selection
0: IP00/Open-Chassis Enclosure
1: Side-by-Side Mounting
2: IP20/NEMA 1, UL Type 1 Enclosure
3: Finless Drive or External Heatsink Installation
0 to 3
<1>
<1> Default setting is determined by drive model.
Setting 0: (Models 2A0250 to 2A0415 and 4A0208 to 4A1200)
Setting 2: (Models 2A0004 to 2A0211, 4A0002 to 4A0165, and 5A0003 to 5A0242).
Setting 0: IP00/Open-Chassis 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.
100
85
70
55
0
L8-35 = 2: IP20/NEMA 1,
UL Type 1 Enclosure
L8-35 = 3: External Heatsink
lnstallation
L8-35 = 0: IP00/Open-Chassis
Enclosure
30
-10
40
50
Drive Rating
(%)
L8-12
(Ambient temp: °C)
L8-35 = 1: Side-by-Side Mounting
Figure A.1 Ambient Temperature and Installation Method Derating
u
Altitude Derating
The drive standard ratings are valid for installation altitudes up to 1000 m. For installations from 1000 m to 3000 m, the drive
rated voltage and the rated output current must be derated for 0.2% per 100 m.
A.4 Drive Derating Data
348
YASKAWA TOEP YAIP1W 01F YASKAWA AC Drive - iQpump1000 User Manual
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