Setting The Frequency By Switches (Multi-Speed Setting) - Mitsubishi Electric FR-A820-00046 Instruction Manual

Basic operation procedure (PU operation)
4.5.3

Setting the frequency by switches (multi-speed setting)

NOTES Use the operation panel (FR-DU08) (FWD or REV key) to give a start command.
Turn ON the RH, RM, or RL signal to give a frequency command (multi-speed setting).
Set Pr. 79 "Operation mode selection" = "4" (External/PU combination operation mode 2).
Connection diagram
Switch
Fig. 4-5:
Example Operation example: Operate at a low-speed (10 Hz).
Screen at power-ON
The monitor display appears.
Changing the operation mode
Set "4" in Pr. 79. [PU] and [EXT] indicators are lit. (For setting value change, refer to page 4-9.)
Setting the frequency
Turn ON the low-speed switch (RL).
Start ➔ acceleration ➔ constant speed
Press
and "
Deceleration ➔ stop
Press
stops rotating with "
Tab. 4-12:
4 - 16
High speed
RH
Middle speed
RM
Low speed
RL
SD
Multi-speed selection by external terminals
or to start running. The frequency value on the indication increases in Pr. 7 "Acceleration time",
" (10.00 Hz) appears.
to stop. The frequency value on the indication decreases in Pr. 8 "Deceleration time", and the motor
" (0.00 Hz) displayed. Turn OFF the low-speed switch (RL).
Operate the inverter by using multi-speed setting
Inverter
Operation panel
(FR-DU08)
Operation
Basic operation
Speed 1 (High speed)
Speed 2
(Middle speed)
Speed 3
(Low speed)
Time
ON
RH
ON
RM
ON
RL
I002437E, I002435E