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PARAMETERS
5
Misoperation prevention and parameter setting restriction
5.17.5 Password function (Pr. 296, Pr. 297)
Above parameters allow their settings to be changed during operation in any operation mode even if "0 (initial value) or 1" is set in Pr. 77 Parameter write selection.
∗1 The above parameters can be set when Pr. 160 User group read selection = "0".
∗2 When Pr. 296 = "9999" (no password lock), set Pr. 160 = "0" to enable the setting of this parameter. When the password lock is set, this parameter can be set
anytime regardless of the Pr. 160 setting.
∗3 The setting value "0 or 9999" can be set to Pr.297 at any time although the setting is invalid (the displayed value does not change).
∗4 Setting Pr.296 = "0 or 100" will cause the Option fault (E.OPT) to occur and the inverter to trip. Do not set these values.
(1) Parameter reading/writing restriction level (Pr. 296 )
Level of reading/writing restriction by PU/NET mode operation command can be selected by Pr. 296.
∗1 If the parameter reading is restricted by the Pr. 160 setting, those parameters are unavailable for reading even when "" is indicated.
∗2 If the parameter writing is restricted by the Pr. 77 setting, those parameters are unavailable for writing even when "" is indicated.
∗3 Read/write is enabled only in the simple mode parameters registered in the user group when Pr.160 User group read selection = "9999". Pr.296 and Pr.297 are
always read/write enabled whether registered to a user group or not.
(2) Password lock/unlock (Pr.296, Pr.297 )
<Lock>
1) Set parameter reading/writing restriction level.(Pr. 296 ≠ 9999)
*During [Pr. 296 = any of "101 to 106, 199"], if password unlock error has occurred 5 times, correct password will not
unlock the restriction. Parameter all 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.
Registering a 4-digit password can restrict parameter reading/writing.
Parameter
Number
Name
Initial Value Setting Range Description
296∗1 Password lock level
9999
0 to 6, 99,
100 to 106, 199
∗4
Select restriction level of parameter reading/
writing when a password is registered.
9999 No password lock
297∗2 Password lock/unlock
9999
1000 to 9998 Register a 4-digit password
(0 to 5) ∗3
Displays password unlock error count. (Reading
only)
(Valid when Pr. 296 = "100" to "106")
9999
∗3 No password lock
Pr. 296 Setting
Operation command of the operation panel
Operation command through FL remote communication
Read ∗1 Write ∗2 Read Write ∗2
9999
0, 100 Option fault (E.OPT) occurs, and the inverter trips.
1, 101 × ×
2, 102 ×
3, 103 ×
4, 104 ×× ×
5, 105 ××
6, 106 ×
99, 199
Only parameters registered in the user group can be read/written.
∗3
(For the parameters not registered in the user group, same restriction level as "4, 104" applies.)
: enabled, ×: restricted
Pr.296 Setting
Value
Restriction of Password
Unlock Error
Pr.297 Display
1 to 6, 99 No restriction Always 0
101 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.