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Minimum Motor Rotation Frequency (pr.13)
Air-conditioning inverter.
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Setting of acceleration/deceleration time and acceleration/ deceleration pattern
4.8.3
Minimum motor rotation frequency (Pr.13)
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
Name
Number
13
Starting frequency
The above parameters can be set when Pr.160 Extended function display selection = "0." (Refer to page 197)
* The value after the IPM parameter initialization. (Refer to page 85)
Output
frequency
(Hz)
60
Set
frequency
Setting
range
Pr. 13
0
Forward rotation
ON
∗ Output from 0.01Hz
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.
NOTE
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.
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
Pr.7 Acceleration time
IPM motor control
Initial value
Minimum
frequency
(180r/min)
*
 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
Output
frequency setting, the IPM motor is stopped.
frequency
When the frequency command reaches the set frequency or
higher, the IPM motor accelerates according to the Pr. 7
Time
Acceleration time setting.
CAUTION
Refer to page 101
Refer to page 113
Refer to page 83
IPM
IPM
IPM
<IPM>
Setting range
The frequency where the motor starts
0 to 60Hz
running can be set in the range of 0 to
60Hz.
Description
117
4

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