Basic Operation Procedure (External Operation) - Mitsubishi Electric 800 Series Instruction Manual

4.3

Basic operation procedure (External operation)

Select a method to give the frequency command from the list below, and refer to the specified page for its procedure.
Method to give the frequency command
Setting the frequency on the operation panel in the frequency setting mode
Turning ON/OFF switches wired to inverter's terminals (multi-speed setting)
Setting the frequency by inputting voltage signals
Setting the frequency by inputting current signals
4.3.1 Using the frequency set by the operation panel
• Switch ON the STF (STR) signal to give a start command.
• Use the operation panel (
• Set Pr.79 ="3" (External/PU combined operation mode 1).
[Connection diagram]
Forward rotation
start
Reverse rotation
start
Switch
The following shows the procedure to operate at 30 Hz.
Operating procedure
1.
Changing the operation mode
Set "3" in Pr.79. [PU+E] indicator is on.
2.
Setting the frequency
Turn
Press [SET] to enter the frequency. "Completed" flickers.
3.
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 "30.00 Hz" appears. [FWD] indicator is on during the forward rotation, and [REV] indicator is on during the
reverse rotation. (To change the set frequency, perform the operation in above step 2. The previously set frequency
appears.)
4.
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 "0.00 Hz" displayed.
96
4. BASIC OPERATION
4.3 Basic operation procedure (External operation)
Inverter
STF
STR
SD
to until the target frequency, "30.00 Hz", appears.
) to give a start command.
Operation panel
Refer to page
96
98
99
102