Minimum Motor Rotation Frequency (Pr.13) <Ipm - Mitsubishi Electric FR-F720P-0.75K to 110K Instruction Manual

Fr-f700p series
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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 User group read selection = "0." (Refer to page 201.)
* The value after the IPM parameter initialization. (Refer to page 80)
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.
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.
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
Refer to page 115
IPM motor control
Refer to page 77
114
Initial value
Minimum frequency/
Minimum rotations
per minute *
⋅ The frequency where the IPM motor starts running can be set
⋅ While the frequency command is less than the Pr. 13 Starting
Output
frequency
Time
CAUTION
Refer to page 96
IPM
IPM
IPM
Setting range
0 to 60Hz
in the range of 0 to 60Hz.
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.
< I P M >
Description
The frequency where the motor starts
running can be set in the range of 0 to
60Hz.

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