Selection Of Operation Mode And Operation Location; Operation Mode Selection (Pr. 79) - Mitsubishi Electric FR-A720-00030-NA Instruction Manual

4.23 Selection of operation mode and operation location

Purpose
Operation mode selection
Started in Network operation mode
Selection of control location

4.23.1 Operation mode selection (Pr. 79)

Used to select the operation mode of the inverter.
Mode can be changed as desired between operation using external signals (external operation), operation from
the PU (FR-DU07/FR-PU07/FR-PU04), combined operation of PU operation and external operation (external/PU
combined operation, and network operation (when RS-485 terminals or a communication option is used).
Parameter
Name
Number
Operation
79 mode
*1
selection
*1 This parameter allows its setting to be changed in any operation mode even if "0 (initial value) or 1" is set in Pr. 77 Parameter write selection .
*2 The priorities of the frequency commands when Pr. 79 = "3" are "Multi-speed operation (RL/RM/RH/REX) > PID control (X14) > terminal 4 analog
input (AU) > digital input from the operation panel".
Operation mode selection
Operation mode at power on
Selection of control source, speed
command source and control location
during communication operation
Initial Setting
Value Range
Use external/PU switchover mode (
0
between the PU and External operation mode.
At power ON, the inverter is in the External operation
mode.
1 Fixed to PU operation mode
Fixed to External operation mode
2 Operation can be performed by switching between the
external and NET operation mode.
External/PU combined operation mode 1
Running frequency
PU (FR-DU07/FR-PU04/FR-
3
PU07) setting or external signal
0
input (multi-speed setting,
across terminals 4 and 5 (valid
when AU signal turns on)).
External/PU combined operation mode 2
Running frequency
4
External signal input
(Terminal 2, 4, 1, JOG, multi-
speed selection, etc.)
Switch-over mode
6 Switch among PU operation, external operation, and NET
operation while keeping the same operating status.
External operation mode (PU operation interlock)
X12 signal ON
Operation mode can be switched to the PU operation
mode.
7
(output stop during external operation)
X12 signal OFF
Operation mode can not be switched to the PU
operation mode.

Selection of operation mode and operation location

Parameter that must be Set
Pr. 79, Pr. 340
Pr. 338, Pr. 339,
Pr. 550, Pr. 551
Description
)
to switch
Start signal
External signal input
(terminal STF, STR)
*2
Start signal
Input from the PU (FR-
DU07/FR-PU04/FR-
PU07)
( ,
Refer to
Page
Pr. 79 321
329
330
LED Indication
: OFF
: ON
PU operation mode
External operation mode
NET operation mode
PU operation mode
External operation mode
NET operation mode
External/PU combined
operation mode
)
PU operation mode
External operation mode
NET operation mode
321
4