Chapter 5 Common Settings - Mitsubishi Electric 800 Series Instruction Manual

5
Common Settings
Set the action when the inverter is performing operation via communication.
Set the action at fault occurrence or at writing of parameters.
Pr. Name
Communication
342
EEPROM write
N001
selection
349
Communication reset
*1
selection
N010
500
Communication error
*1
execution waiting time
N011
Communication error
501
occurrence count
*1
N012
display
502 Stop mode selection at
N013 communication error
Operation frequency
779
during communication
N014
error
*1 The setting is available only when a communication option is installed.
 Communication EEPROM write selection (Pr.342)
• When parameter write is performed via the inverter PU connector, Ethernet connector, USB communication, or a
communication option, the parameters storage device can be changed to RAM only from both EEPROM and RAM. Use
this function if parameter settings are changed frequently.
• When changing the parameter values frequently, set "1" in Pr.342 Communication EEPROM write selection to write
them to the RAM only. The life of the EEPROM will be shorter if parameter write is performed frequently with the setting
unchanged from "0 (initial value)" (EEPROM write).
NOTE
• Turning OFF the inverter's power supply clears the modified parameter settings when Pr.342 = "1 (write only to RAM)".
Therefore, the parameter values at next power-ON are the values last stored in the EEPROM.
• The parameter setting written in the RAM cannot be checked on the operation panel. (The values displayed on the operation
panel are the ones stored in the EEPROM.)
 Operation selection at a communication error (Pr.502, Pr.779)
• For communication via the PU connector, Ethernet connector, or a communication option, operation at a communication
error can be selected. The operation is active under the Network operation mode.
• Select the stop operation at the retry count excess (Pr.121, enabled only when the Mitsubishi inverter protocol is selected)
or at a signal loss detection (Pr.122) during the RS-485 communication.
• The operation at a communication error can be selected with Pr.502 when Pr.1431 Ethernet signal loss detection
function selection = "3" or Pr.1432 Ethernet communication check time interval ≠ "9999" during Ethernet
communication.
160
5. Common Settings
Initial Setting
value range
Parameter values written by communication are written to the EEPROM and
0
RAM.
0
1 Parameter values written by communication are written to the RAM.
0 Enables the error reset function in any operation mode.
0
1 Error reset is enabled in the Network operation mode.
Set the time from when the communication line error occurs until the inverter
0 0 to 999.8 s starts the operation for the communication error (when a communication
option is used).
Displays the communication error occurrence count (when a communication
0 0
option is used).
0 0 to 2, 6 Select the operation at a communication error occurrence.
0 to 590 Hz Set the frequency for the operation when a communication error occurs.
9999
9999 Operation continues at the same frequency before the communication error.
Description