Delta VFD-EL-W Series - Page 197

Appendix A SpecificationsVFD-EL-W
192
Model
Carrier Frequency Limitation
VFD007EL21W(-1)
If the AC motor drive is installed at an ambient temperature of 40°C, and
operates at the rated current, the carrier frequency needs to be within 8 kHz. If
the carrier frequency is higher than 8 kHz, decrease 5% of the rated current for
every 1 kHz increase in the carrier frequency. The maximum allowable carrier
frequency is 12 kHz.
VFD055EL43W
If the AC motor drive is installed at an ambient temperature of 50°C, and
operates at the rated current, the carrier frequency needs to be within 4 kHz. If
the carrier frequency is higher than 4 kHz, decrease 5% of the rated current for
every 1 kHz increase in the carrier frequency. The maximum allowable carrier
frequency is 12 kHz.
Other models
If the AC motor drive is installed at an ambient temperature of 50°C, and
operates at the rated current, the carrier frequency needs to be within 8 kHz. If
the carrier frequency is higher than 8 kHz, decrease 5% of the rated current for
every 1 kHz increase in the carrier frequency. The maximum allowable carrier
frequency is 12 kHz.