Operation Mode Selection - Mitsubishi Electric FR-A800 Series Beginner's Manual

Operation mode selection

5.2 Operation mode selection
The operation mode specifies the source of the start command and the frequency command for the
inverter. The mode is controlled with parameter 79 (see section 6.2.7).
Basically, there are following operation modes:
● External operation mode (EXT): For inputting a start command and a frequency command with
an external potentiometer and switches which are connected to the control circuit terminal.
● PU operation mode (PU): Operations using the standard parameter unit (FR-DU08/FR-DU08-01),
the optional parameter unit (FR-PU07) or the RS-485 communication via PU connector.
● Network operation mode (NET): When RS-485 terminals or communication option is used.
NOTE You can only switch the operation mode when the drive is stopped and no start command is
active.
In the initial setting, the inverter is in the External operation mode (EXT) at power ON. You can switch
to the parameter unit operation mode (PU) by pressing the PU/EXT key on the parameter unit
FR-DU08 (resp. the HAND/AUTO key on the FR-DU08-01). The PU (HAND) indicator lights up.
FR-DU08
FR-DU08-01
Pressing PU/EXT when the inverter is in PU operation mode switches the system to external operation
mode and the EXT indicator lights up.
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Operation and settings