193
Misoperation prevention and parameter
setting restriction
4
(2) Password lock/unlock (
Pr.296, Pr.297
)
<Lock>
1) Set parameter reading/writing restriction level.(
Pr. 296
≠
9999)
* During [
Pr. 296
= any of "100 to 106, 199"], if password unlock error has occurred 5 times, correct password
will not unlock the restriction. All parameter clear can unlock the restriction.
(In this case, parameter settings are cleared.)
2) Write a four-digit number (1000 to 9998) in
Pr. 297
as a password.
(When
Pr. 296
= "9999",
Pr. 297
cannot be written.)
When password is registered, parameter reading/writing is restricted with the restriction level set in
Pr. 296
until
unlocking.
<Unlock>
There are two ways of unlocking the password.
Enter a password in
Pr. 297
.
Unlocked when a password is correct. If a password is incorrect, an error occurs and not unlocked.
During [
Pr. 296
= any of "100 to 106, 199"], if password unlock error has occurred 5 times, correct password will not unlock
the restriction. (During password lock)
Perform all parameter clear.
Pr.296
Setting
Value
Restriction of Password
Unlock Error
Pr.297
Display
0 to 6, 99
No restriction
Always 0
100 to 106, 199
Restricted at fifth error
Displays error count (0 to
5)
REMARKS
⋅
After registering a password, a read value of
Pr. 297
is always one of "0" to "5".
⋅
When a password restricted parameter is read/written,
is displayed.
⋅
Even if a password is registered, parameters which the inverter itself writes, such as inverter parts life, are overwritten as
needed.
⋅
Even if a password is registered,
Pr. 991
PU contrast adjustment
can be read/written when a parameter unit (FR-PU04/FR-PU07)
is connected.
CAUTION
⋅
If the password has been forgotten, perform all parameter clear to unlock the parameter restriction. In that case, other
parameters are also cleared.
⋅
Parameter all clear can not be performed during the operation.
⋅
Do not use the FR Configurator when parameter read is restricted (
Pr. 296
= any of "0, 4, 5, 99, 100, 104, 105, 199").
FR Configurator may not function properly.
REMARKS
⋅
The password unlock method is different for operation panel/FR-PU07, RS-485 communication, and communication option.
Operation panel/
FR-PU07
RS-485
communication
Communication
option
All parameter clear
(data format H9966, H55AA)
Parameter clear
(data format H9696, H5A5A)
×
×
:Password can be unlocked.
×
:Password cannot be unlocked.
Summary of Contents for 700 Series
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