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Setting of acceleration/deceleration time
and acceleration/deceleration pattern
4.8.3 Minimum motor rotation frequency (Pr.13)
<IPM >
The above parameters can be set when Pr.160 User group read selection = "0." (Refer to page 201.)
* The value after the IPM parameter initialization. (Refer to page 80)
Set the frequency where the motor starts running.
Set the deadband in the low-speed range to eliminate noise and offset deviation when setting a frequency
with analog input.
Parameter
Number
Name Initial value Setting range Description
13 Starting frequency
Minimum frequency/
Minimum rotations
per minute *
0 to 60Hz
The frequency where the motor starts
running can be set in the range of 0 to
60Hz.
⋅ The frequency where the IPM motor starts running can be set
in the range of 0 to 60Hz.
⋅ While the frequency command is less than the Pr. 13 Starting
frequency setting, the IPM motor is stopped.
When the frequency command reaches the set frequency or
higher, the IPM motor accelerates according to the Pr. 7
Acceleration time setting.
REMARKS
Under general-purpose motor control (under V/F control and Simple magnetic flux vector control), the inverter starts output at
the frequency set in Pr.13 at start, but in IPM motor control, the inverter always starts output from 0.01Hz.
CAUTION
The inverter output does not start when the frequency-setting signal is less than Pr.13.
For example, while Pr.13 = 20Hz, the inverter output starts when the frequency setting signal reaches 20Hz.
CAUTION
Note that when Pr. 13 is set to any value lower than Pr. 2 Minimum frequency, simply turning ON the start signal
will run the motor at the preset frequency even if the command frequency is not input.
♦ Parameters referred to ♦
Pr.2 Minimum frequency Refer to page 96
Pr.7 Acceleration time Refer to page 115
IPM motor control Refer to page 77
IPM
IPM
IPM
Output
frequency
(Hz)
Set
frequency
Output
frequency
*
* Output from 0.01Hz
Time
60
Setting
range
Forward rotation
ON
0
Pr. 13