Temperature derating, Figure a.5, Parameter settings – Yaskawa AC Drive Z1000 User Manual
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5 kHz
2 kHz
100%
80%
0
Figure A.4 Carrier Frequency Derating (2A0343 to 2A0396 and 4A0414 to 4A0590)
100%
88%
58%
2 kHz
5 kHz
10 kHz
0
4A0361
Figure A.5 Carrier Frequency Derating (4A0361)
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 or if drives are mounted in a cabinet. In order to ensure reliable drive overload
protection, set parameters L8-12 and L8-35 according to the installation conditions.
Note:
To install a heatsink on the outside of a panel, design the panel to keep the air temperature inside the panel within 10 °C (18 °F)
[5 °C (9 °F) for 2A0273 and 4A0124] of the outside air temperature.
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.
40 to 60
30 °C
L8-35
Installation Method
Selection
0: IP00/Open-Chassis Enclosure
2: IP20/NEMA Type 1 Enclosure
3: External Heatsink Installation
0, 2, 3
2
IP00/Open-Chassis Enclosure
Drive operation between -10 °C and +50 °C (14 and 122 °F) allows 100% continuous current without derating.
IP20/NEMA Type 1 Enclosure
Drive operation between -10 °C and +40 °C (14 and 104 °F) allows 100% continuous current without derating. Operation
between 40 °C and 50 °C (104 and 122 °F) requires output current derating.
Note:
The temperature derating remains unchanged when removing the top protective cover and the bottom conduit bracket to change an IP20/
NEMA Type 1 enclosure drive to an IP00/Open-Type enclosure drive (derating required for temperatures over 40 °C [104 °F]).
External Heatsink Installation
Drive operation between -10 °C and +40 °C (14 and 104 °F) allows 100% continuous current without derating. Operation
between 40 °C and 50 °C (104 and 122 °F) requires output current derating.
A.4 Drive Derating Data
YASKAWA ELECTRIC TOEP C710616 45E YASKAWA AC Drive – Z1000 User Manual
277
A
Specifications