Yaskawa Z1000 AC Drive HVAC - Manual (Page 259)

2 kHz 5 kHz 0
Normal Duty
Heavy Duty
87% of HD
5A0242
Drive
Carrier
Frequency
% of Drive
Nameplate
Current
Figure A.6 Carrier Frequency Derating (Model 5A0242)
u Temperature Derating
To ensure the maximum performance life, the drive output current must be derated as shown in Figure A.7 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.
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 YAIZ1U 03A YASKAWA AC Drive – Z1000 User Manual 259
A
Specifications