Mitsubishi Electric FATEC FR-A800 Manual page 15

2
UNDERSTANDING INVERTER SYSTEM
(2) PU operation using the operation panel or parameter unit (D000 (Pr.79) = "0, 1")
This operation is performed only with the keys of the operation panel or parameter unit.
Power supply
(3) PU/External combined operation (D000 (Pr.79) = "3 or 4")
When D000 (Pr.79) is set to "3", set frequency using the operation panel or parameter unit, and
input a start command using external start switches.
When D000 (Pr.79) is set to "4", set frequency using an external potentiometer or multi-speed
setting, and input the start command using the keys of the operation panel or parameter unit.
External start or stop signal
(STF, STR)
Forward
rotation
start
Reverse
Switch
rotation
start
Fig. 2.5 PU/External combined operation (When D000
2.4 Operation method
10
MCCB MC
Fig. 2.4 PU operation method
+ PU frequency setting
Key operation setting of PU
Inverter
(FR-DU08)
STF
STR
SD
(Pr.79) = "3")
PU start signal + PU frequency setting signal
Key operation setting of PU
Inverter
FR-A800
R
S
Operation panel
(FR-DU08)
T
Operation panel
(option FR-LU08)
PWR
ALM
MENU F1 F2 F3 FWD FWD
MON REV REV
PU
STOP STOP
EXT
RESE T RES ET
FR-LU08
Operation using the operation panel
or the parameter unit
PU start or stop signal
Operation
panel
Frequency
setting
potentiometer
Potentiometer
Fig. 2.6 PU/External combined operation (When D000
U
V
W
External frequency
+
setting signal
Inverter
10
2
5
(Pr.79) = "4")
Motor
M
Operation
panel
(FR-DU08)