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Mitsubishi Inverter FR-F740-22K-CHT New in boxMitsubishi Inverter FR-F740-22K-CHT
Notes:
1. The performance figures at the rated motor capacity are based on a motor voltage of 400 V.
2. The overload capacity in % is the ratio of the overload current to the inverter’s rated current
in the respective operating mode. For repeated duty cycles allow sufficient time for the inverter
and the motor to cool below the temperature reached at 100% load. The waiting periods can be
calculated using the r.m.s. current method (I² × t), for which knowledge of the duty.
3. The maximum output voltage cannot exceed the power supply voltage. The output voltage can
be varied over the entire power supply voltage range.
4. The rated input capacity varies depending on the impedance values on the power supply side
of the inverter (including the cables and input reactor).
5. When the load curve with 120% overload capacity is selected the maximum permitted ambient
temperature is 40°C. m When operating with carrier frequencies ≥ 2.5 kHz this value is reduced
automatically as soon as the frequency inverter exceeds the rated output current shown in
parentheses (= 85% load).
6. When the cable bushing for the optional expansion cards is broken out the unit has an IP 00
protection rating.
7. The suffix EC or E1 in the model designation identifies the CE versions of the frequency inverter
(for the European Union). The inverter types FR-F740-02160 and above are all delivered in the E1 version as standard (PCBs with two coats of protective
varnish). The EC version (varnished PCBs) is standard for types FR-F740 00023 through 01800. The other version as always available as an option.
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