202
5. PARAMETERS
5.5 (F) Setting of acceleration/deceleration time and acceleration/deceleration pattern
5.5.5 Minimum motor speed frequency
Set the frequency where the PM motor starts running. Set the deadband in the low-speed range to eliminate noise and offset
deviation when setting a frequency with analog input.
Starting frequency setting (Pr.13)
• The frequency where the PM motor starts running can be set in the range of 0 to 60 Hz.
• While the frequency command is less than the Pr.13 Starting frequency setting, the PM motor is stopped. When the
frequency command reaches the set frequency or higher, the PM motor accelerates according to the Pr.7 Acceleration
time setting.
• Under induction motor control (under V/F control and Advanced magnetic flux vector control), the output starts at the
frequency set in Pr.13. Under PM motor control, the output always starts at 0.01 Hz.
• The inverter output does not start when the frequency-setting signal is less than Pr.13. For example, while Pr.13 = "20 Hz",
the inverter output starts when the frequency setting signal reaches 20 Hz.
Pr.2 Minimum frequency page 253
Pr.7 Acceleration time page 190
Pr. Name Initial value Setting range Description
13
F102
Starting frequency Minimum frequency/
Minimum rotations
per minute
0 to 60 Hz Set the frequency where the motor starts
running.
CAUTION
• Note that when Pr.13 is set to any value equal to or lower than the setting of Pr.2 Minimum frequency, simply turning ON the start signal
will run the motor at the frequency set in Pr.2 even if the command frequency is not input.
Output
frequency
(Hz)
Set frequency
Output
frequency
Output from 0.01 Hz
Time
60
Pr.13
Setting range
STF ON
0
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