Delta VFD-EL-W Series - Page 196

Appendix A SpecificationsVFD-EL-W
191
A-5 Derating Curve for Ambient Temperature and Carrier Frequency
Ambient Temperature Derating Curve
Model
Ambient Temperature Limitation
VFD007EL21W(-1)
If the AC motor drive operates at the rated current, the ambient temperature
needs to be between -10–40°C. If the temperature is above 40°C, decrease 2% of
the rated current for every 1°C increase in temperature. The maximum allowable
temperature is 50°C.
Other models
If the AC motor drive operates at the rated current, the ambient temperature
needs to be between -10–50°C. If the temperature is above 50°C, decrease 2% of
the rated current for every 1°C increase in temperature. The maximum allowable
temperature is 60°C.
Carrier Frequency Derating Curve
Rated current (%)
Ambient temperature (°C)
Other models
Other models 50°C
All models 25°C
Carrier Frequency (kHz)
Carrier Frequency (kHz)
Rated current (%)
Rated current (%)