Mitsubishi Electric fr-e700 series, Instruction Manual

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Parameter Communication operation and setting
FR-E700 SC EC/ENE 6 - 245
6.19.3 Communication E²PROM write selection (Pr. 342)
When parameter write is performed from the inverter PU connector, USB communication, commu-
nication option or Ethernet communication (only FR-E700 SC ENE), parameters storage device can be
changed from E²PROM + RAM to RAM only. Set when a frequent parameter change is necessary.
When changing the parameter values frequently, set "1" in Pr. 342 to write them to the RAM only. The
life of the E²PROM will be shorter if parameter write is performed frequently with the setting un-
changed from "0 (initial value)" (E²PROM write).
The above parameter can be set with the FR-E700 SC EC when Pr. 160 "User group read selection" = 0.
However, the parameter can be set whenever the communication option is connected. (Refer to
section 6.17.4).
Pr. No. Name Initial Value
Setting
Range
Description Parameters referred to
Refer to
Section
342
Communication E²PROM write
selection
0
0
Parameter values written by communication are
written to the E²PROM and RAM.
—
1
Parameter values written by communication are
written to the RAM.
NOTES When "1" (write to RAM only) is set in Pr. 342, powering off the inverter will erase the changed
parameter values. Therefore, the parameter values available when power is switched on again are
the values stored in E²PROM previously.
The parameter setting written to RAM cannot be checked on the operation panel. (The values dis-
played on the operation panel are the ones stored in E²PROM.)