Mitsubishi Electric FR-E800, Инструкция по эксплуатации, Страница: 220 / 484

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10. (D) Operation Command and Frequency Command
10.1 Operation mode selection
• Functions/operations by X12 (MRS) signal ON/OFF
*1 The mode is switched to the External operation mode regardless of the ON/OFF state of the start signal (STF/STR). Thus, the motor runs under
the External operation mode when the X12 (MRS) signal turns OFF while the STF or STR signal is ON.
*2 When a fault occurs, the inverter can be reset by pressing the STOP/RESET key on the operation panel.
NOTE
• The operation mode cannot be switched to the PU operation mode with the start signal (STF/STR) ON state even if the X12
(MRS) signal turns ON.
• If the MRS signal is ON and Pr.79 is written to a value other than "7" when the MRS signal is used as the PU interlock signal,
the MRS signal will act as a regular MRS function (output stop). Also, when Pr.79 = "7", the MRS signal becomes the PU
interlock signal.
• The logic of the signal follows the Pr.17 MRS/X10 terminal input selection setting also when the MRS signal is used as the
PU operation interlock signal. When Pr.17 = "2 to 5", ON and OFF in the table above are reversed.
• Changing the terminal assignment using Pr.178 to Pr.184 (Input terminal function selection) may affect the other functions.
Set parameters after confirming the function of each terminal.
 Switching operation mode by external signal (X16 signal)
• When External operation and the operation from the operation panel are used together, the PU operation mode and
External operation mode can be switched during a stop (during motor stop, start command OFF) by using the PU/External
operation switchover (X16) signal.
• When Pr.79 = "0, 6, or 7", switching between the PU operation mode and External operation mode is possible. (When
Pr.79 ="6", switchover is enabled during operation.)
• To input the X16 signal, set "16" in any parameter from Pr.178 to Pr.184 (Input terminal function selection) to assign
the function to a terminal.
NOTE
• The operation mode is determined by the setting of Pr.340 Communication startup mode selection and the ON/OFF state
of the X65 and X66 signals. (For the details, refer to page 220 .)
• The priority of Pr.79 and Pr.340 and signals is Pr.79 > X12 > X66 > X65 > X16 > Pr.340 .
• Changing the terminal assignment using Pr.178 to Pr.189 (Input terminal function selection) may affect the other functions.
Set parameters after confirming the function of each terminal.
Operating status
X12 (MRS) signal
Operation
mode
Operating status
Switching to PU or
NET operation mode
Operation
mode
Status
PU/NET
During stop
ON → OFF
*1
External
*2
If frequency and start commands are given
from external source, the inverter runs by
those commands.
Disabled
During
running
ON → OFF
*1
Disabled
External
During stop
OFF → ON
External
*2
During stop
Enabled
ON → OFF Disabled
During
running
OFF → ON Running → Output stop Disabled
ON → OFF Output stop → Running Disabled
Pr.79 setting
X16 signal status and operation mode
Remarks
ON (External) OFF (PU)
0 (initial value)
External operation
mode
PU operation mode
Switching among the External, PU, and NET operation modes is
enabled.
1 PU operation mode Fixed at PU operation mode.
2 External operation mode
Fixed at External operation mode (Switching to NET operation mode
enabled).
3, 4 External/PU combined operation mode Fixed at External/PU combined operation mode.
6
External operation
mode
PU operation mode
Switching among the External, PU, and NET operation mode is
enabled during operation.
7
X12 (MRS)
ON External operation
mode
PU operation mode
Switching among the External, PU, and NET operation mode is
enabled (signal is OFF in the External operation mode).
X12 (MRS)
OFF
External operation mode
Fixed at External operation mode (forcibly switched to External
operation mode).