Mitsubishi Electronics FR-A700 ユーザーズマニュアル

⋅ The operation mode is to specify the source of

inputting the start command and frequency
command of the inverter.

⋅ Basically, there are following operation modes.

External operation mode: For inputting start
command and frequency command by an external
potentiometer and switches which are connected
to the control circuit terminal.
PU operation mode: For inputting start command
and frequency command by operation panel (FR-
DU07), parameter unit (FR-PU04/FR-PU07) and
RS-485 communication with PU connector. 
Network operation mode (NET operation
mode): For inputting start command and
frequency command by RS-485 terminal and
communication options. 

⋅ The operation mode can be selected from the

operation panel or with the communication
instruction code.

⋅ Either "3" or "4" may be set to select the PU/external combined operation, and these settings differ in starting method.

⋅ In the initial setting, the stop function by 

of the PU (FR-DU07/FR-PU07) (PU stop selection) is valid also in other than the

PU operation mode. (Pr. 75 Reset selection/disconnected PU detection/PU stop selection. Refer to page 305.)

⋅ For switching of operation by external terminals, refer to the following:

Network operation mode

Network operation 
mode

External 
operation 
mode

PU operation 
mode

Personal 
computer

Personal 
computer

Operation 

panel

Programmable controller

Potentiometer Switch

RS-485 

terminals

Inverter

Communication 

option

External terminal

Personal 
computer

USB
connector

PU connector

Switching through the network

Switch to the Network operation 
mode through the network.

Switch to External 
operation mode through 
the network.

External operation

Switching with the PU

Press         on

the PU to light

Network operation

PU operation

Network operation

PU operation

Press        on the PU to light

Press         on 

the PU to light

Press        on the PU to light