Operation Mode Switching And Communication Startup Mode (Pr.79, Pr.340) - Mitsubishi Electric 800 Series Instruction Manual

• If the communication error setting is disabled with Pr.121 = "9999" or Pr.122 = "9999" while Pr.502 = "6", the inverter does
not operate with the frequency set in Pr.779 when a communication error occurs.
CAUTION
• When Pr.502 = "6" and a communication line error (PU disconnection, Ethernet communication fault) occurs, the operation continues.
When setting "6" in Pr.502, provide a safety stop countermeasure other than via communication. For example, input a signal through an
external terminal (RES, MRS, etc.) or press the PU stop on the operation panel.
 Error reset operation selection at inverter fault (Pr.349)
• An error reset command can be disabled in the External operation mode or the PU operation mode.
Pr.349 setting
0 (initial value) Error reset is enabled independently of operation mode.
1 Error reset is enabled in the Network operation mode.
 Operation mode switching and communication startup mode (Pr.79,
Pr.340)
• Check the following before switching the operation mode.
The inverter is at a stop.
Both the STF and STR signals are off.
The Pr.79 Operation mode selection setting is correct. (Check the setting on the operation panel of the inverter.) (Refer
to the Instruction Manual (Function).)
• The operation mode at power ON and at restoration from instantaneous power failure can be selected. Set a value other
than "0" in Pr.340 Communication startup mode selection to select the Network operation mode. (Refer to the
Instruction Manual (Function).)
• After the inverter starts up in the Network operation mode, parameter write can be commanded via the network.
NOTE
• The changed value in Pr.340 is applied after the next power-ON or inverter reset.
• The Pr.340 setting can be changed on the operation panel in any operation mode.
• When setting a value other than "0" in Pr.340, make sure that the communication settings of the inverter are correct.
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5. Common Settings
Description