Mitsubishi Electric FR-A820-00046 Instruction Manual page 193

Basic operation
Example Operation example: Operate at 30 Hz.
Changing the operation mode
Set "3" in Pr. 79. [PU] and [EXT] indicators turn ON. (For changing the setting value, refer to page 4-6.)
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
Turn ON the start switch (STF or STR). The frequency value indicated on the display increases for the time set in Pr.
7 "Acceleration time", and is fixed at "
rotation, and [REV] indicator turns ON during the reverse rotation.
(To change the set frequency, perform the operation in above step
Deceleration ➔ stop
Turn OFF the start switch (STF or STR). The frequency value indicated on the display decreases for the time set in
Pr. 8 "Deceleration time", and the motor stops rotating at "
Tab. 4-15:
NOTES When both the forward rotation switch (STF) and the reverse rotation switch (STR) are turned ON,
the motor cannot be started. If both are turned ON while the motor is running, the motor deceler-
ates to a stop.
Pr. 178 "STF terminal function selection" must be set to "60" (or Pr. 179 "STR terminal function
selection" must be set to "61"). (Both settings are initial values.)
Setting Pr. 79 "Operation mode selection" = "3" also enables multi-speed operation.
If the inverter is stopped using STOP/RESET key on the operation panel during the External opera-
tion, the inverter enters the PU stop status.
("PS" appears on the operation panel.)
To reset the PU stop status, turn OFF the start switch (STF or STR), and then press PU/EXT key.
(Refer to page 5-202.)
Parameters referred to
Pr. 4 to Pr. 6
Pr. 7
Pr. 8
Pr. 178
Pr. 179
Pr. 79
FR-A800
to until the target frequency "
is not pressed, the indication of the value goes back to "
again and set the frequency again.)
Operate the inverter by using external signals
(multi-speed setting)
Acceleration time
Deceleration time
STF terminal function selection
STR terminal function selection
Operation mode selection
Basic operation procedure (External operation)
Operation
" (30.00 Hz), appears. The frequency flickers for about 5 s.
to enter the frequency. " " and "
".
" (30.00 Hz). [FWD] indicator turns ON during the forward
. The last setting appears at first.)
" (0.00 Hz).
" flicker alternately.
" (0.00 Hz) after about 5 s of flickering.
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