145
Misoperation prevention and parameter setting restriction
4
PARAMETERS
4.14.5 Password function (Pr. 296, Pr. 297)
∗1 This parameter can be set when Pr. 160 Extended function display selection = "0".
∗2 When Pr. 296 = "9999" (no password lock), set Pr.160 = "0" to enable the setting of this parameter. When Pr. 296 ≠ "9999" (with password lock), Pr. 297 is
always available for setting regardless of 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).
(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 Parameter access from unit where parameter is written in PU operation mode (initially set to operation panel, parameter unit) is restricted. (Refer to page 160
for PU mode operation command source selection)
∗4 Parameter access in NET operation mode with RS-485 communication is restricted.
Registering a 4-digit password can restrict parameter reading/writing.
Parameter
Number
Name
Initial Value Setting Range Description
296 ∗1 Password lock level
9999
1 to 6, 101 to 106
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 = "101" to "106")
(9999)
∗3 No password lock (Reading only)
Pr. 296 Setting
PU Mode Operation Command ∗3 NET Mode Operation Command ∗4
Read ∗1 Write ∗2 Read ∗1 Write ∗2
9999
1, 101
× ×
2, 102 ×
3, 103 ×
4, 104
××××
5, 105
××
6, 106
××
: enabled, ×: restricted
