Base Frequency, Base Frequency Voltage (Pr. 3, Pr. 19, Pr. 47, Pr. 113) - Mitsubishi Electric FR-A520-0.4K-NA Instruction Manual

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Base frequency, base frequency voltage (Pr. 3, Pr. 19, Pr. 47, Pr. 113)

Pr. 3 "base frequency"
Pr. 19 "base frequency voltage"
Pr. 47 "second V/F (base frequency)
Pr. 113 "third V/F (base frequency)
Used to adjust the inverter outputs (voltage, frequency) to the motor rating.
When running a standard motor, generally set the frequency rating to 60Hz. When running the motor using
z
the commercial power supply-inverter switch-over, set the base frequency to the same value as the power
supply frequency.
Parameter
Factory Setting
Number
60Hz 〈50Hz〉
3
9999 〈8888〉
19
47
113
<Setting>
·
Use Pr. 3, Pr. 47 and Pr. 113 to set the base frequency (rated motor frequency). Three different base
frequencies can be set and the required frequency can be selected from among them.
·
Pr. 47 is valid when the RT signal is on, and Pr. 113 is valid when the X9 signal is on. Use any of Pr. 180 to
Pr. 186 to assign the terminal used to input the X9 signal.
·
Use Pr. 19 to set the base voltage (e.g. rated motor voltage).
Note: 1. Set the base frequency to 60Hz when using a constant-torque motor.
2. When the advanced magnetic flux vector control mode has been selected using Pr. 80 and
Pr. 81, Pr. 3, Pr. 47, Pr. 113 and Pr. 19 are made invalid and Pr. 84 and Pr. 83 are made valid.
3. When "2" (5-point flexible V/F characteristics) is set in Pr. 71, the Pr. 47 and Pr. 113 settings are
made invalid.
4. When the RT (X9) signal is on, the other second (third) functions such as second (third)
acceleration/deceleration time are also selected.
5. When terminal assignment is changed using Pr. 180 to Pr. 186 during use of the second or third
functions, the other functions may be affected. Check the functions of the corresponding
terminals before making setting.
Setting Range
0 to 400Hz
0 to 1000V,
8888•9999
9999 0 to 400Hz, 9999
9999 0 to 400Hz, 9999
Pr.19
Related parameters
Pr. 71 "applied motor"
Pr. 80 "motor capacity"
Pr. 81 "number of motor poles"
Pr. 83 "rated motor voltage"
Pr. 84 "rated motor frequency"
Pr. 180 to Pr. 186 (input terminal
Remarks
8888: 95% of power
supply voltage
9999: Same as power
supply voltage
9999: Function invalid
9999: Function invalid
Output frequency
Pr.3
Pr.47
Pr.113
65
PARAMETERS
function selection)