Chapter 12 Description of Parameter Settings
ME300
lower limit of skip frequency ranges.
When accelerating and decelerating, the output frequency still passes through the skip frequency
ranges.
Default: 0
Settings
0: Output waiting
1: Zero-speed operation
2: Fmin (refer to Pr.01-07, 01-41)
When the frequency command of drive is less than Fmin (Pr.01-07, Pr.01-41), the drive operates
using this parameter.
0: the AC motor drive is in waiting mode without voltage output from terminals U, V, W.
1: the drive executes the DC brake by Vmin (Pr.01-08 and Pr.01-42) in V/F and SVC modes.
2: the AC motor drive runs using Fmin (Pr.01-07, Pr.01-41) and Vmin (Pr.01-08, Pr.01-42) in V/F
and SVC modes.
In V/F and SVC modes:
Default: 0
Settings
0: V/F curve determined by Pr.01-00–01-08
1: V/F curve to the power of 1.5
2: V/F curve to the power of 2
When setting to 0, refer to Pr.01-01–01-08 for the motor 1 V/F curve. For motor 2, refer to Pr.01-
35–01-42.
When setting to 1 or 2, the second and third voltage frequency settings are invalid.
If the load on the motor is a variable torque load (torque is in direct proportion to rotating speed,
such as the load of a fan or a pump), the load torque is low at low rotating speed. Decreasing the
input voltage to make the magnetic field of the input current smaller and reduce flux loss and iron
loss for the motor to increase efficiency.
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