124
Operation selection at a communication error (Pr.502)
The converter operation at a communication line error occurrence or at an option fault occurrence can be selected.
Parameter setting
• Converter operation at fault occurrence
∗1
When the communication returns to normal state within the time period set in Pr.500
, the communication option error (E.Q) does not
occur.
• Converter operation at fault recognition after the elapse of a time period set in
Pr.500
• Converter operation at fault removal
NOTE
• Communication line error E.Q (fault data: HA1) is an error that occurs on the communication line. Communication option fault
E.1 (fault data: HF1) is an error that occurs in the communication circuit inside the option.
• The "fault signal" in the tables above refers to the Fault output (ABC) signal or fault bit.
• When the fault signal is set to output, each fault is stored in the fault history. (A fault record is written to the fault history at a
fault signal output.)
When the fault signal is not set to output, fault record is temporarily overwritten to the fault history but not stored.
After the fault is removed, the fault indication is reset, changing the display back to normal, and the latest in the stored fault
records is displayed in the fault history.
3.5.24
Communication EEPROM write selection
(Pr.342)
• When changing the parameter settings frequently, set "1" in
Pr.342
to write them to the RAM only.
The life of the EEPROM will be shorter if parameter write is performed frequently with the initial setting "0" (written to the
EEPROM and RAM).
NOTE
• Turning OFF the converter's power clears the modified parameter settings when
Pr.342
= "1" (written to the RAM only)".
Therefore, the parameter settings last stored to EEPROM applies at next power-ON.
Fault type
Pr.502 setting
Converter
operation
Indication
Fault signal
Communication line
0 (initial value), 3
Normal
OFF
Communication option
0 (initial value), 3
Stopped
"E.1"
ON
Fault type
Pr.502 setting
Converter
operation
Indication
Fault signal
Communication line
0 (initial value)
Stopped
"E.Q"
ON
3
Continued
Normal
OFF
Communication option
0 (initial value), 3
Stopped
"E.1"
ON
Fault type
Pr.502 setting
Converter
operation
Indication
Fault signal
Communication line
0 (initial value)
Remains stopped
Remains at "E.Q"
Remains ON
3
Continued
Normal
OFF
Communication option
0 (initial value), 3
Remains stopped
Remains at "E.1"
Remains ON
Storage device of the parameter settings can be changed to RAM only from RAM for the parameter writing
through the RS-485 communication or the CC-Link communication. Use this function if parameter settings are changed
frequently.
Pr.
Name
Initial value
Setting range
Description
342
Communication EEPROM
write selection
0
0
When parameter write is performed through
communication, the parameter settings are
written to the EEPROM and RAM.
1
When parameter write is performed through
communication, the parameter settings are
written to the RAM only.
Summary of Contents for FR-XC-11K
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