Mitsubishi Electric FR-A720-00030-NA Instruction Manual page 345

Selection of operation mode and operation location
Pr. 338 Communication operation command
Operation
Location
Pr. 339 Communication speed command
Selection
42 X42 Torque bias selection 1
43 X43 Torque bias selection 2
44 X44
P/PI control switchover
50 SQ
Sequence start
60 STF
Forward rotation command
61 STR Reverse rotation command
62 RES
Reset
63 PTC
PID forward action switchover
64 X64 PID forward action switchover
65 X65
PU-NET operation switchover
External-NET operation
66 X66
switchover
67 X67 Command source switchover
Simple position pulse train
68 NP
sign
Simple position droop pulse
69 CLR
clear
DC feeding operation
70 X70
permission
71 X71 DC feeding cancel
Magnetic flux decay output
74 X74
shutoff
[Explanation of table]
External : Control is valid only from external terminal signal.
NET : Control only from communication is valid
Combined : Control is valid from either of external terminal and communication.

: Control is invalid from either of external terminal and communication.
Compensation : Control by signal from external terminal is only valid when Pr. 28 Multi-speed input compensation selection = "1"
REMARKS
 The command source of communication is as set in Pr. 550 and Pr. 551.
 The Pr. 338 and Pr. 339 settings can be changed while the inverter is running when Pr. 77 = 2. Note that the setting change is
reflected after the inverter has stopped. Until the inverter has stopped, communication operation command source and
communication speed command source before the setting change are valid.
(6) Switching of command source by external terminal (X67)
 In Network operation mode, the command source switching signal (X67) can be used to switch the start command
source and speed command source. This signal can be utilized to control the signal input from both the control
terminal and communication.
 Set "67" in any of Pr. 178 to Pr. 189 (input terminal function selection) to assign the X67 signal to the control terminal.
 When the X67 signal is off, the start command source and speed command source are control terminal.
X67 Signal State
No signal assignment
ON
OFF
REMARKS
 The ON/OFF state of the X67 signal is reflected only during a stop. It is reflected after a stop when the terminal is switched
during operation.
 When the X67 signal is OFF, a reset via communication is disabled.
CAUTION
 Changing the terminal assignment using Pr. 178 to Pr. 189 (input terminal function selection) may affect the other functions. Set
parameters after confirming the function of each terminal.
Parameters referred to 
Pr. 28 Multi-speed input compensation selection
Pr. 59 Remote function selection
Pr. 79 Operation mode selection
334
source
0: NET
source
NET
Start Command Source
According to Pr. 338
Command is valid only from control terminal signal.
Refer to page 172.
Refer to page 172.
Refer to page 321.
0: NET
1:External 2:External 0: NET
NET
NET
NET
External and NET *
NET
NET
External
External
External NET
External
External
External
External
External
NET
NET
NET
Speed Command Source
According to Pr. 339
1: External
Remarks
1:External 2:External
External
External
External
* The signal is valid
when there are
External
inputs from external
terminals and NET.
External
External
External
External
External
External