Operating Instructions

Descriptions of Parameter Settings

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Fig. 32: (2) For fan and hydraulic machinery

Fig. 33: (3) High starting torque

Start-up Frequency

Pr.

Explanation

Settings

Default

01-09

Start-up frequency

0.00–599.00 Hz

0.50

● When the starting frequency (Pr.01-09) is larger than the Minimum Output Frequency of Motor 1 (Pr.01-07), the

drive’s frequency output starts when the starting frequency (Pr.01-09) reaches the F command. See the

following diagram for details.

● Fcmd = frequency command;

Fstart = start-up frequency (Pr.01-09);

fstart = actual start-up frequency of the drive;

Fmin = 4th output frequency setting (Pr.01-07/Pr.01-41);

Flow = output frequency lower limit (Pr.01-11)

● When Fcmd > Fmin and Fcmd < Fstart:

– If Flow < Fcmd, the drive runs directly with Fcmd.

– If Flow ≥ Fcmd, the drive runs with Fcmd, and then rises to Flow according to acceleration time.

● The drive’s output frequency goes directly to 0 when decelerating to Fmin.