u
Carrier Frequency Derating
Derate the drive according to
as the carrier frequency increases above the factory default setting.
100
%
90
%
80
%
70
%
4 kHz 6 kHz 8 kHz 10 kHz
0
Figure A.1 Carrier Frequency Derating
u
Temperature Derating
To ensure the maximum performance life, the drive output current must be derated as shown in
installed in areas with high ambient temperature. Set parameters L8-12 and L8-35 according to the installation conditions to
ensure reliable drive overload protection.
n
Parameter Settings
No.
Name
Description
Range
Default
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
2: IP20/UL Type 1 Enclosure
3: External Heatsink Installation
0, 2, 3
Det. by
o2-04
Setting 0: IP00/Open-Chassis Enclosure
Drive operation between -10 °C and +50 °C allows 100% continuous current without derating.
Setting 2: IP20/UL Type 1 Enclosure
Drive operation between -10 °C and +40 °C allows 100% continuous current without derating. Operation b40 °C and
+50 °C requires output current derating.
Setting 3: External Heatsink Installation
Drive operation between -10 °C and +40 °C allows 100% continuous current without derating. Operation b40 °C and
+50 °C requires output current derating.
100
85
70
55
0
L8-35=2: IP20/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)
Figure A.2 Ambient Temperature and Installation Method Derating
A.5 Drive Derating Data
YASKAWA ELECTRIC SIEP C710636 04D U1000 Industrial MATRIX Drive Technical Manual
487
A
Specifications
Summary of Contents for U1000 iQpump Drive
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