Setting The Frequency And Starting The Motor - Mitsubishi Electric FR-A800 Series Beginner's Manual

Operation and settings
5.3

Setting the frequency and starting the motor

When external control signals are not used you can only start, stop and change the speed of the ex-
ternal motor with the parameter unit.
Example Procedure on FR-A800 inverters (using FR-DU08):
Example of drive operation at a 30 Hz output frequency.
Screen at power-ON
The monitor display appears.
Changing the operation mode
Press
Setting the frequency
Turn
While the value is flickering, press
After about 3 s of flickering, the indication goes back to "
(If
In that case, turn
Start ➔ acceleration ➔constant speed
Press
and "
(To change the set frequency, perform the operation in above step 3. The previously set frequency appears.)
Deceleration ➔stop
Press
stops rotating with "
NOTE Troubleshooting tips
If you cannot set the frequency or if you are unable to start the motor with the parameter unit
please go through the following checklist:
● Is the inverter in PU operation mode? The PU indicator LED should be on.
Check parameter 79 and make sure that it is set to „0". This is the default factory setting, which
allows the inverter to be switched between external operation mode and PU operation mode
with the PU/EXT key on the parameter unit.
● Are all external start commands inactive?
● Did you press the SET key within 5 seconds of setting the frequency?
If you don't press SET during this time (while the display is flickering) the output frequency
setting value will not be stored.
Frequency Inverters - Beginner's Guide
to choose the PU operation mode. [PU] indicator is lit.
until the target frequency, "
is not pressed, the indication of the value goes back to "
again and set the frequency.)
or to start running. The frequency value on the indication increases in Pr. 7 "Acceleration time",
" (30.00 Hz) appears.
to stop. The frequency value on the indication decreases in Pr. 8 "Deceleration time", and the motor
" (0.00 Hz) displayed.
Setting the frequency and starting the motor
Operation
" (30.00 Hz), appears. The frequency flickers for about 5 s.
to enter the frequency. " " and "
" (monitor display).
" flicker alternately.
" (0.00 Hz) after about 5 s of flickering.
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