Password - Mitsubishi Electric FR-CC2-N Series Instruction Manual

5.2.8

Password

Registering a 4-digit password can restrict access to parameters (reading/writing).
Pr. Name
296
Password lock level
E410
297
Password lock/unlock
E411
*1 Although "0 or 9999" can be input in Pr.297, the value is invalid. (The display cannot be changed.)
 Parameter reading/writing restriction level (Pr.296)
• The level of access (reading/writing) using the operation panel or via RS-485 communication can be restricted with Pr.296.
Operation panel
Pr.296 setting
Read
9999 ○
0, 100 ×
1, 101 ○
2, 102 ○
3, 103 ○
5, 105 ×
6, 106 ○
○: Enabled, ×: Disabled
*1 If the parameter writing is restricted by the Pr.77 Parameter write selection setting, those parameters are unavailable for writing even when "○"
is indicated.
 Locking parameters with a password (Pr.296, Pr.297)
• The procedure of locking parameters with a password is as follows.
1.
Set the parameter reading/writing restriction level to enable the password protection. (Set a value other than "9999"
in Pr.296.)
Allowable number of failed password
Pr.296 setting
0 to 3, 5, 6 Unlimited
*1
Limited to 5 times
100 to 103, 105, 106
*1 If an invalid password is input 5 times while any of "100 to 103, 105, or 106" is set in Pr.296, the locked parameters cannot be unlocked afterward
even with the valid password All parameter clear can unlock the restriction. (In this case, the parameters are returned to their initial values.)
2.
Write a four-digit number (1000 to 9998) to Pr.297 as a password (writing is disabled when Pr.296 = "9999"). After
a password is set, parameters are locked and access (reading/writing) to the parameters is limited at the level set
in Pr.296 until the valid password is input to unlock the locked parameters.
NOTE
• After a password is set, the Pr.297 readout is always any of "0 to 5".
• "
• Even if a password is set, the parameters which are written by the converter unit, such as parameters related to the life check
of converter parts, are overwritten as needed.
 Unlocking the locked parameters (Pr.296, Pr.297)
• There are two ways to unlock the locked parameters.
Initial value
9999
9999
*1
Write
○ ○
× ×
× ○
× ○
○ ○
× ○
○ ×
attempts
" appears when a password-protected parameter is attempted to be read/written.
Setting range
Password protection enabled. Setting the access
0 to 3, 5, 6, 100 to
(reading/writing) restriction level to parameters locked
103, 105, 106
with a password enables writing to Pr.297.
9999 No password protection
Input a 4-digit password to lock parameters, or input the
1000 to 9998
valid password to unlock the locked parameters.
Number of failed password attempts (read only,
*1
displayed after any of "100 to 103, 105, or 106" is set in
(0 to 5)
Pr.296 and a password to lock parameters is input).
*1
No password protection
9999
RS-485 communication
*1
Read Write
○
×
×
○
×
○
×
Pr.297 readout
Always 0
Number of failed password attempts (0 to 5)
Description
5. PARAMETERS
5.2 (E) Environment setting parameters
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