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Misoperation prevention and parameter setting restriction
4
PARAMETERS
4.16.5 Password function (Pr.296, Pr.297)
(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.
Registering 4-digit password can restrict parameter reading/writing.
Parameter
number
Name Initial value Setting range Description
296 Password lock level
9999
0 to 6,
100 to 106
Select restriction level of parameter reading/
writing when a password is registered.
9999 No password lock
297 Password lock/unlock
9999
1000 to 9998 Register a 4-digit password
(0 to 5)
Displays password unlock error count. (Reading
only)
(Valid when Pr.296 = "100" to "106")
9999 No password lock
This parameter can be set when Pr.160 Extended function display selection = "0."
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.
Pr.297 can be written as "0 or 9999," but the Pr.297 setting does not change.
Pr.296 Setting
PU Mode Operation Command
NET Mode Operation Command
RS-485 communication Communication option
Read Write Read Write Read Write
9999
0, 100
1, 101
2, 102
3, 103
4, 104
5, 105
6, 106
: enabled, : restricted
If the parameter reading is restricted by the Pr.160 setting, those parameters are unavailable for reading even when "" is indicated.
If the parameter writing is restricted by the Pr.77 setting, those parameters are unavailable for writing even when "" is indicated.
Parameter access from unit where parameter is written in PU operation mode (initially set to operation panel, parameter unit) is restricted. (Refer to page
195 for PU mode operation command source selection)
This restricts parameter access from the command source that can write a parameter under Network operation mode (initially RS-485 communication
from PU connector or a communication option). (Refer to page 195 for NET mode command source.)
If a communication option is installed, option fault (E.OPT) occurs, and drive unit trips. (Refer to page 275.)