Mitsubishi Electric FR-A720-0.4K Instruction Manual page 311

(4) External operation mode (setting "0" (initial value), "2")
5 6
4
3
Three-phase
AC power supply
Forward rotation
start
Reverse rotation
start
Frequency setting
potentiometer
(5) PU operation mode (setting "1")
Three-phase
R/L1
S/L2
AC power supply
T/L3
7
8
9
10
Inverter
R/L1
U
Motor
S/L2
V
T/L3
W
STF
STR
SD
10
2
5
Inverter
U
Motor
V
W
FR-DU07
,
,
Selection of operation mode and operation location
⋅ Select the external operation mode when performing
operation by providing
potentiometer, start switch,
connecting them to the control circuit terminals of the
inverter.
⋅ Basically, parameter changing is disabled in external
operation mode. (Some parameters can be changed.
Refer to page 71 for the parameter list.)
⋅ When "0" or "2" is selected for Pr. 79, the inverter enters
the external operation mode at power on. (When using
the network operation mode, refer to page 306)
⋅ When parameter changing is seldom necessary, setting
"2" fixes the operation mode to external operation
mode. When frequent
necessary, setting "0" (initial value) allows the operation
mode to be changed easily to PU operation mode by
pressing of the operation panel. When you
switched to PU operation mode, always return to
external operation mode.
⋅ The STF and STR signal are used as a start command,
and the terminal 2, 4, multi-speed setting, JOG signal,
etc. are used as frequency setting.
⋅ Select the PU operation mode when performing
operation by only the key operation of the operation
panel (FR-DU07) or parameter unit (FR-PU04/FR-
PU07). Also select the PU operation mode when
making communication using the PU connector.
⋅ When "1" is selected for Pr. 79, the inverter enters the
PU operation mode at power on. You cannot change to
the other operation mode.
⋅ 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 376.)
⋅ 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).
a frequency setting
etc. externally and
parameter changing is
301
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