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Mitsubishi Electric FR-A500 Instruction Manual Page 193

Transistorized inverter.
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<Operation procedure>
•When operation panel (FR-DU04) is used
1) Select the PU operation mode.
2) Set the running frequency.
3) Press the
4) Read Pr. 900 "FM terminal calibration" or Pr. 901 "AM terminal calibration".
5) Press the
6) Hold down the
(Depending on the setting, it may take some time until the pointer moves.)
7) Press the
8) Press the
Calibration can also be made for external operation. Set the frequency in external operation mode and
make calibration in accordance with steps 4) to 8).
Note: 1. Pr. 900 is factory-set to 1mA full-scale or 1440 pulse/s FM output frequency at 60Hz. The
maximum pulse train output of terminal FM is 2400 pulse/s.
2. When a frequency meter is connected across terminals FM-SD to monitor the running frequency,
the FM terminal output is filled to capacity at the factory setting if the maximum output frequency
reaches or exceeds 100Hz. In this case, the Pr. 55 setting must be changed to the maximum
3. For the operation procedure using the parameter unit (FR-PU04), refer to the FR-PU04
instruction manual.
4. Calibration can also be made during operation.
key to run the inverter. (Motor need not be connected.)
key to adjust the meter pointer to the required position.
key for about 1.5s.
key to stop the inverter.


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    good manual and it is very good to understand the contant of inverter and i lernt many things in this manual