Filter
Top Products
218
Selection of operation mode and
operation location
4.19.5 Operation mode at power-ON (Pr. 79, Pr. 340)
(1) Specify operation mode at power-ON (Pr. 340)
⋅ Depending on the Pr. 79 and Pr. 340 settings, the operation mode at power-ON (reset) changes as described below.
When power is switched ON or when power comes back on after instantaneous power failure, the inverter can be
started up in Network operation mode.
After the inverter has started up in the Network operation mode, parameter write and operation can be performed
from a program.
Set this mode for communication operation using the RS-485 terminals or communication option.
Parameter
Number
Name
Initial
Value
Setting
Range
Description
79*1
Operation mode selection
0 0 to 4, 6, 7 Select the operation mode. (Refer to page 208.)
340
*2*3
Communication startup
mode selection
0
0 As set in Pr. 79.
1, 2
Started in network operation mode.
When the setting is "2", it will resume the pre-instantaneous power
failure operation mode after an instantaneous power failure occurs.
10, 12
Started in network operation mode. Operation mode can be
changed between the PU operation mode and Network
operation mode from the operation panel. When the setting is
"12", it will resume the pre-instantaneous power failure operation
mode after an instantaneous power failure occurs.
The above parameters can be changed during a stop in any operation mode.
*1 This parameter allows its setting to be changed in any operation mode even if "0 (initial value) or 1" is set in Pr. 77 Parameter write selection.
*2 This parameter allows its setting to be changed in any operation mode even if "0 (initial value)" is set in Pr. 77 Parameter write selection.
*3 The parameters can be set when Pr. 160 User group read selection = "0". However, the parameters can be set whenever the communication
option is connected. (Refer to page 201.).
Pr. 340
Setting
Pr. 79
Setting
Operation Mode at Power ON, Power
Restoration, Reset
Operation Mode Switching
0
(initial
value)
0
(initial
value)
External operation mode
Switching among the External, PU, and NET operation mode is
enabled
*2
1 PU operation mode Fixed to PU operation mode
2 External operation mode
Switching between the External and Net operation mode is enabled
Switching to PU operation mode is disabled
3, 4 External/PU combined operation mode Operation mode switching is disabled
6 External operation mode
Switching among the External, PU, and NET operation mode is
enabled while running
7
External operation mode when X12 (MRS) signal ON
Switching among the External, PU, and NET operation mode is
enabled
*2
External operation mode when X12 (MRS) signal OFF
Fixed to External operation mode (Forcibly switched to External
operation mode.)
1, 2
*1
0 NET operation mode
Same as when Pr. 340 = "0"
1 PU operation mode
2 NET operation mode
3, 4 External/PU combined operation mode
6 NET operation mode
7
NET operation mode when X12 (MRS) signal ON
External operation mode when X12 (MRS) signal OFF
10, 12
*1
0 NET operation mode
Switching between the PU and NET operation mode is enabled
*3
1 PU operation mode Same as when Pr. 340 = "0"
2 NET operation mode Fixed to NET operation mode
3, 4 External/PU combined operation mode Same as when Pr. 340 = "0"
6 NET operation mode
Switching between the PU and NET operation mode is enabled
while running
*3
7 External operation mode Same as when Pr. 340 = "0"
*1 The Pr. 340 setting "2" or "12" is mainly used for communication operation using the inverter RS-485 terminals. When a value other than "9999" (selection
of automatic restart after instantaneous power failure) is set in Pr. 57 Restart coasting time, the inverter will resume the same operation state which was in
before after power has been restored from an instantaneous power failure.
When Pr. 340 = "1, 10", a start command turns OFF if power failure has occurred and then restored during a start command is ON.
*2 The operation mode cannot be switched directly between the PU operation mode and Network operation mode.
*3 Operation mode can be changed between the PU operation mode and Network operation mode with key of the operation panel (FR-DU07) and X65 signal.
♦ Parameters referred to ♦
Pr. 57 Restart coasting time Refer to page 162.
Pr. 79 Operation mode selection Refer to page 206.