Mitsubishi Electric FR-A700 Technical Manual page 176

(1) External operation mode
Select the External operation mode when the start
command and the frequency command are applied
from a frequency setting potentiometer, start switch,
etc. which are provided externally and connecting
them to the control circuit terminals of the inverter.
Basically, parameter changing is disabled in the
External operation mode. (Refer to page 384 for
availability of parameter write)
When [Pr. 79 = 0, 2] is selected, the inverter is the
External operation mode at power-ON. (When using
the Network operation mode, refer to page 434)
When parameter changing is seldom necessary,
setting [Pr. 79 = 2] fixes the operation mode to the
External operation mode.
When frequent parameter changing is necessary,
setting [Pr. 79 = 0] allows the operation mode to be
changed easily to the PU operation mode by
pressing of the operation panel. When you
switched to the PU operation mode for parameter
change, always return to the External operation
mode.
The STF and STR signal are used as a start
command, and the voltage or current signal to
terminal 2, 4, multi-speed signal, JOG signal, etc.
are used as a frequency command.
(2) PU operation mode
Select the PU operation mode when operating with
a operation panel (FR-DU07/FR-PA07) or by keys
on the parameter unit (FR-PU04/FR-PU07). For
, select PU operation mode for the
A700 F700
communication using PU connector as well.
When [Pr. 79 = 1], the inverter enters the PU
operation mode at power-ON. You cannot change to
the other operation mode.
When [Pr. 79 = 0], External operation mode can be
changed to PU operation mode with
operation panel.
The setting dial of the operation panel can be used
for setting like a potentiometer. ([Pr. 161 Frequency
setting/key lock operation selection] Refer to page 214)
When PU operation mode is selected, the PU
operation mode signal (PU) can be output. For the
terminal used for the PU signal output, assign the
function by setting 10 (positive logic) or 110
(negative logic) in any of [Pr. 190 to Pr. 196 output
terminal function selection].
[Pr. 79 = 0, 2]
[Pr. 79 = 0, 1]
of the
Three-phase
AC power supply
Forward rotation
start
Reverse rotation
start
Frequency setting
potentiometer
Three-phase
AC power supply
210
PARAMETER
Inverter
R/L1
U
Motor
S/L2
V
T/L3
W
STF
STR
SD
10
2
5
Inverter
R/L1 U
S/L2 V Motor
T/L3 W
FR-DU07
,
,