The heat loss and leakage current from the inverter can be reduced by
changing the load rate option at Cn.05 (PWM Mode). Selecting 1
(LowLeakage PWM) reduces heat loss and leakage current, compared to
when 0 (Normal PWM) is selected. However, it increases the motor noise.
Low leakage PWM uses 2 phase PWM modulation mode, which helps
minimize degradation and reduces switching loss by approximately 30%.
• S100 inverter is designed to respond to two types of load rates. Heavy load (heavy duty) and
normal load (normal duty). The overload rate represents an acceptable load amount that
exceeds rated load, and is expressed in a ratio based on the rated load and the duration. The
overload capacity on the S100 series inverter is 150%/1min for heavy loads, and 120%/1min
for normal loads.
• The current rating differs from the load rating, as it also has an ambient temperature limit. For
derating specifications, refer to 11.8 Continuous Rated Current Derating on page 431.
• Current rating for ambient temperature at normal load operation.
[Ambient temperature versus current rating at normal load]
• Guaranteed maximum carrier frequencies for current rating by load.
To Next Page
Loading...
