4-22
n24
Maximum Frequency
Setting range 50.0 to 400
(Hz)
Factory setting 60.0 (Hz)
Unit of setting 50.0 to 99.9 (Hz) : 0.1 (Hz)
100 to 400 (Hz) : 1 (Hz)
n25
Maximum Voltage
Setting range 1 to 255 (510)
(V)
Factory setting 200 (400) (V)
Unit of setting 1 (V)
n26
Maximum Voltage Frequency (Basic Frequency)
Setting range 1.6 to 400 (Hz) Factory setting 60.0 (Hz)
Unit of setting 1.6 to 99.9 (Hz) : 0.1 (Hz)
100 to 400 (Hz) : 1 (Hz)
Note The values in parentheses are for the 400-VAC class.
•These three constants are used to set a V/f pattern.
•Check the motor specifications and set each constant as follows:
n24: Maximum frequency or rated frequency
n25: Rated voltage
n26: Rated frequency
•The value set in n24 (maximum frequency) must be equal to or greater than the value
set in n26 (maximum voltage frequency). Otherwise, an error will result.
Example of n24, n25, and n26 Settings
Maximum voltage
Output voltage
(V)
Maximum voltage
frequency (basic
frequency)
Maximum
frequency
Output
frequency (Hz)
(24 V)
Preparing for Operation Chapter 4
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