Mitsubishi Electric FR-A820-00046 Instruction Manual page 483

Parameters
Selecting the operation mode for power-ON (Pr. 340)
Depending on the Pr. 79 and Pr. 340 settings, the operation mode at power-ON (reset) changes as de-
scribed below.
Pr. 340
setting
0
(initial
value)
1, 2
10, 12
Tab. 5-109: Operation mode of the inverter at power on
Use Pr. 340 = "2 or 12" setting to perform communication with the RS-485 terminals.
Even if an instantaneous power failure occurs while Pr. 57 "Restart coasting time" ≠ "9999" (with
automatic restart after instantaneous power failure), inverter continues operation at the condition
before the instantaneous failure.
The operation mode cannot be directly changed between the PU operation mode and Network
operation mode.
Switching between the PU and NET operation modes is available with the PU/EXT key on the
operation panel and the X65 signal.
Parameters referred to
Pr. 57
Pr. 79
FR-A800
Pr. 79 Operation mode at power-ON,
setting at power restoration, or after a reset
0
External operation mode
(initial
value)
1 PU operation mode
2 External operation mode
3, 4 External/PU combined operation mode
6 External operation mode
X12 (MRS) signal ONExternal operation mode
7
X12 (MRS) signal OFF External operation mode
0 NET operation mode
1 PU operation mode
2 NET operation mode
3, 4 External/PU combined operation mode
6 NET operation mode
X12(MRS) signal ON NET operation mode
7
X12 (MRS) signal OFF External operation mode
0 NET operation mode
1 PU operation mode
2 NET operation mode
3, 4 External/PU combined operation mode
6 NET operation mode
7 External operation mode
Restart coasting time
Operation mode selection
(D) Operation command and frequency command
Operation mode switching
Switching among the External, PU, and NET
operation modes is enabled.
PU operation mode fixed
Switching between the External and NET operation
modes is enabled.
Switching to PU operation mode is disabled
Operation mode switching is disabled
Switching among the External, PU, and NET
operation mode is enabled while running.
Switching among the External, PU, and NET
operation modes is enabled.
External operation mode fixed. (Forcibly switched
to External operation mode.)
Same as Pr. 340 ="0" setting
Switching between the PU and NET operation
mode is enabled
Same as Pr. 340 = "0" setting
NET operation mode fixed
Same as Pr. 340 = "0" setting
Switching between the PU and NET operation
mode is enabled while running.
Same as Pr. 340 = "0" setting
=>
=>
page 5-581, page 5-590
page 5-271
5 - 281