146
Misoperation prevention and parameter setting restriction
(2) Password lock/unlock (Pr. 296, Pr. 297 )
<Lock>
1) Set parameter reading/writing restriction level.(Pr. 296 ≠ 9999)
*During [Pr. 296 = "101 to 106"], 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 four-digit numbers (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 set level 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 = "101 to 106"], if password unlock error has occurred 5 times, correct password will not unlock the
restriction. (During password lock)
Perform All parameter clear.
Password lock is unlocked. However, other parameter settings are cleared also.
(3) Parameter operation during password lock/unlock
∗1 Reading/writing is unavailable when there is restriction to reading by the Pr. 160 setting.
∗2 Unavailable during the operation.
∗3 Correct password will not unlock the restriction.
Pr. 296 Setting
Value
Restriction of Password
Unlock Error
Pr.297 Display
1 to 6 No restriction Always 0
101 to 106 Restricted at fifth error
Displays error count
(0 to 5)
REMARKS
After registering a password, a read value of Pr. 297 is always "0" to "5".
When a password restricted parameter is read/written, is displayed.
Even if a password is registered, parameters which the drive unit itself writes, such as drive unit 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-PU07) is
connected.
NOTE
If the password has been forgotten, perform All parameter clear to unlock the parameter restriction. In that case,
other parameters are also cleared.
All parameter clear can not be performed during the operation.
Parameter operation
Unlocked Password registered Locked
Pr. 296 = 9999
Pr. 297 = 9999
Pr. 296 ≠ 9999
Pr. 297 = 9999
Pr. 296 ≠ 9999
Pr. 297 = 0 to 4
(Read value)
Pr. 296 = 101 to 106
Pr. 297 = 5
(Read value)
Pr. 296
Read ∗1
Write ∗1 ∗1
××
Pr. 297
Read ∗1
Write
×
∗3
Performing parameter clear
××
Performing parameter all clear ∗2 ∗2
Performing parameter copy ××
: enabled, ×: restricted
REMARKS
When Pr. 296 = "4, 5, 104, 105" and using the parameter unit (FR-PU07), PUJOG operation is unavailable.
When writing is restricted from PU mode operation command (Pr. 296 = 1, 2, 4, 5, 101, 102, 104, 105), switching of operation
mode by easy setting mode is unavailable.
During password lock, parameter copy of the parameter unit (FR-PU07) cannot be performed.
Parameters referred to
Pr. 77 Parameter write selection Refer to page 143
Pr. 160 Extended function display selection
Refer to page 144
Pr. 551 PU mode operation command source selection
Refer to page 160
