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Pr.79
setting
0
External/PU switchover mode. The inverter operation mode can be switched between
(initial
PU and External.
value)
At power ON, the inverter is in the External operation mode.
Operation mode
1
PU operation mode fixed
External operation mode
fixed.
The operation can be
2
performed by switching
between the External and
NET operation modes.
External/PU combined
3
operation mode 1
External/PU combined
4
operation mode 2
*1
The priorities of the frequency commands while 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 basics
• The operation mode specifies the source of the start command and the frequency command for the inverter.
• Basically, there are following operation modes.
External operation mode : For giving a start command and a frequency command with an external potentiometer or
PU operation mode
Network operation mode
(NET operation mode)
Description
Frequency command
Input from the operation
panel or parameter unit
External signal input (via
terminal 2 or 4, for JOG
operation, or for the multi-
speed selection function,
etc.)
Input from the operation
panel or parameter unit, or
the external signal input (via
terminal 4 or for the multi-
speed selection function,
*1
etc.)
External signal input (via
terminal 2 or 4, for JOG
operation, or for the multi-
speed selection function,
etc.)
switches which are connected to the control circuit terminal.
: For giving a start command and a frequency command from the PU or through RS-485
communication via the PU connector.
: For giving a start command and a frequency command through communication via the
PU connector.
External operation mode
PU operation mode
Start command
on the operation panel
or
or
on the
parameter unit
External operation mode
External signal input
(via terminal STF or STR)
External signal input
(via terminal STF or STR)
External/PU combined
on the operation panel
or
or
on the
parameter unit
5.5 (D) Operation command and frequency command
LED display
: OFF
Refer to
page
: ON
: ON (blinking)
PU operation mode
103
NET operation mode
104
103
NET operation mode
104
operation mode
104
5. PARAMETERS
2
2
3
4
5
6
7
8
9
10
101
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