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178
Selection of operation mode and operation location
(4) Selection of control source in network operation mode (Pr. 338, Pr. 339)
There are two control sources: operation command source, which controls the signals related to the inverter start
command and function selection, and speed command source, which controls signals related to frequency setting.
In network operation mode, the commands from the external terminals and communication are as listed below.
[Explanation of table]
External : Command is valid only from control terminal.
NET : Command only from communication is valid.
Combined : Command from both control terminal and communication is valid.
— : Command from either of control terminal and communication is invalid.
Operation
Location
Selection
Pr. 338 Communication operation
command source
0
:
NET 1: External
Remarks
Pr. 339 Communication speed
command source
0: NET
1: External 2: External
0: NET
1: External 2: External
Fixed
function
(terminal-
equivalent
function)
Running frequency from
communication
NET — NET NET — NET
Terminal 2
— External — — External —
Terminal 4
— External — External
Selective function
Pr. 178 to Pr. 182 setting
0RL
Low-speed operation
command/remote setting
clear
NET External NET External
Pr. 59 = "0"
(multi-speed)
Pr. 59 ≠ "0"
(remote)
1RM
Middle-speed operation
command/remote setting
function
NET External NET External
2RH
High-speed operation
command/remote setting
function
NET External NET External
3 RT Second function selection
NET External
4 AU Terminal 4 input selection
— Combined — Combined
5 JOG Jog operation selection
— External
7OH
External thermal relay input
External
8 REX 15-speed selection
NET External NET External
Pr. 59 = "0"
(multi-speed)
10 X10 Inverter run enable signal
External
12 X12
PU operation external
interlock
External
14 X14 PID control valid terminal
NET External NET External
16 X16
PU-external operation
switchover
External
18 X18 V/F switchover
NET External
24 MRS
Output stop
Combined External
Pr. 79
≠ "7"
PU operation interlock
External
Pr. 79 = "7"
When the X12
signal is not
assigned
25
STOP
Start self-holding selection
— External
60 STF Forward rotation command
NET External
61 STR Reverse rotation command
NET External
62 RES Inverter reset
External
65 X65
PU/NET operation
switchover
External
66 X66
External/NET operation
switchover
External
67 X67
Command source
switchover
External
REMARKS
The command source of communication is as set in 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.