Mitsubishi Electric FR-A820-00046 Instruction Manual page 171

Basic operation
Example Operation example: Operate at 30 Hz.
Changing the operation mode
Set "3" in Pr. 79. [PU] and [EXT] indicators are lit. (For setting value change, 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 on the indication increases in Pr. 7 "Acceleration time",
and "
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 on the indication decreases in Pr. 8 "Deceleration
time", and the motor stops rotating with "
Tab. 4-15:
NOTES When both the forward rotation switch (STF) and the reverse rotation switch (STR) are ON, the
motor cannot be started. If both are turned ON while the inverter is running, the inverter 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"). (All are initial values.)
Setting Pr. 79 "Operation mode selection" = "3" also enables multi-speed operation.
If stopped using STOP/RESET key on the operation panel during the External operation, 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 5-194.)
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.)
" (30.00 Hz) appears. [FWD] indicator is lit during the forward rotation, and [REV] indicator is lit
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 "
" (monitor display).
. The previously set frequency appears.)
" (0.00 Hz) displayed.
" flicker alternately.
" (0.00 Hz) after about 5 s of flickering.
=> page 5-288
=> page 5-233
=> page 5-233
=> page 5-422
=> page 5-422
=> page 5-263
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