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Misoperation prevention and parameter
setting restriction
4
PARAMETERS
4.18.5 Password function (Pr. 296, Pr. 297)
*1 This parameter can be set when Pr. 160 User group read selection = "0".
*2 If Pr. 296 = "9999" (no password lock), Pr. 297 can be set while Pr. 160 = "0." When the password lock is valid, Pr. 297 can be set regardless of the
Pr. 160 setting.
*3 "0 or 9999" can be set to Pr.297 at any time although the setting is invalid (the displayed value does not change).
*4 This parameter allows its setting 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) Parameter reading/writing restriction level (Pr. 296 )
Level of reading/writing restriction by PU/Network(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 Parameter access from unit where parameter is written in PU operation mode (initially set to operation panel (FR-DU07), parameter unit) is
restricted. (Refer to page 219 for PU mode operation command source selection)
*4 This restricts parameter access from the command source that can write a parameter under Network operation mode (initially RS-485 terminal or
a communication option). (Refer to page 219 for NET mode command source.)
*5 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.
*6 If a communication option is installed, option fault (E.OPT) occurs, and inverter trips. (Refer to page 318.)
Registering a 4-digit password can restrict parameter reading/writing.
Parameter
Number
Name Initial Value Setting Range Description
296*1*4 Password lock level
9999
0 to 6, 99, 100 to
106, 199
Select restriction level of parameter reading/
writing when a password is registered.
9999 No password lock
297*2*4 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 Password being unlocked
Pr. 296 Setting
PU Mode Operation Command
*3
PU Mode Operation Command *4
Read *1 Write *2
Read Write *2
RS-485 terminal
Communication
option
Read
9999
0, 100
*6
×× × ×
1, 101 × ×
2, 102 ×
3, 103 ×
4, 104 ×× × ×
5, 105 ××
6, 106 × ×
99, 199
Only the parameters registered in the user group can be read/written.
*5
(For the parameters not registered in the user group, same restriction level as "4, 104" applies.)
: enabled, ×: restricted