When Parameters Cannot Be Set - Mitsubishi Electric FATEC FR-A800 Manual

5
BREAKDOWN MAINTENANCE
5.1.2

When parameters cannot be set

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Parameter setting
2-A
NO
Is E440 (Pr.160) User
group setting correct?
YES
Set E440 (Pr.160).
Parameter cannot be set.
NO
Is the operation Is the operation Is the operation
1-A
panel on? panel on? panel on?
YES
Is Err displayed Is Err displayed Is Err displayed
at power-on? at power-on? at power-on?
NO
NO
Can Pr. be read?
YES
Is the inverter
stopped?
YES
Is writing disabled by
setting "1" in
E400 (Pr.77)?
NO
Writing is enabled.
Is the PU Is the PU Is the PU
operation mode operation mode operation mode
activated by setting activated by setting activated by setting
"1" in D000 (Pr.79)? "1" in D000 (Pr.79)? "1" in D000 (Pr.79)?
YES
PU operation
Is the set value within Is the set value within Is the set value within
the permitted range? the permitted range? the permitted range?
YES
Within the range
Is the operation Is the operation Is the operation
correct? correct? correct?
YES
Is the version on the Is the version on the Is the version on the
operation panel matches operation panel matches operation panel matches
to the main unit? to the main unit? to the main unit?
YES
Are all parameters Are all parameters Are all parameters
cleared? cleared? cleared?
YES
All cleared.
The inverter or the operation
panel is faulty.
Replace it with a substitute or
return it to the factory to repair.
YES
Is the operation panel
installed correctly?
NO
Securely connect it to the
inverter. In case of the
cable connection, check
the connection of cables
and connectors.
NO
(STF or STR) blinks.
Stop the inverter.
YES
Writing is disabled.
Enable writing
(Set "0" or "2" in E400 (Pr.77)).
NO
External (EXT) operation
Activate the PU operation mode
(Set "0" or "1" in D000 (Pr.79)).
NO
Outside the range
Change the set value so that it is within the range.
Pay attention to the decimal point and number of digits.
NO
Operate it correctly according to the manual.
Press the writing (SET) key for 1.5 seconds or more.
NO
Check sales and service or
manuals.
NO
2-A
Not cleared.
Parameter setting
5.1 Troubleshooting
YES
The inverter or the operation
panel is faulty. Replace it with a
substitute or return it to the
factory to repair.
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