Hitachi SJ Series User Manual page 224

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Run in the energy-saving mode

• To save energy by using a load corresponding to

slower acceleration or deceleration and to a wide

range of constant frequency.

• Set automatic adjustment

minimum output power of the inverter during

constant-speed operation. Suitable for the load

corresponding to the reducing torque

characteristics of a fan/pump.

• Running with this function needs a setting of 01 for

the energy-saving operation selection [Hb145]. The

response and the accuracy can be adjusted by the

energy-saving response/accuracy adjustment

Energy-saving

operation selection

Energy-saving

response/accuracy

so as to achieve the

00: disabled; 01:

• Because this function is implemented by relatively

slow control, a rapid change in load, such as an

impact load, may stall the motor and cause an over

current trip

• This function acts when either the V/f control

(constant torque characteristics) or the V/f control

(reducing torque characteristics) is selected.

Select whether or not to conduct the

energy-saving operation.

Inverter Function

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