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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 inverter, such as parameters related to the life check of
inverter parts, are overwritten as needed.
• Even if a password is set, Pr.991 PU contrast adjustment can be read/written when the parameter unit (FR-PU07) is
connected.
 Unlocking the locked parameters (Pr.296, Pr.297)
• There are two ways to unlock the locked parameters.
• Enter the password in Pr.297. When a valid password is input, the locked parameters can be unlocked. When an invalid
password is input, an error indication appears and the parameters cannot be unlocked. If an invalid password is input 5
times while any of "100 to 106, or 199" is set in Pr.296, the locked parameters cannot be unlocked afterward even with the
valid password (the password is locked up).
• Perform All parameter clear.
NOTE
• If the password is forgotten, it can be reset by performing All parameter clear, but the other parameters are also reset.
• All parameter clear cannot be performed during the inverter operation.
• When using FR Configurator2 in the PU operation mode, do not set "0, 4, 5, 99, 100, 104, 105, or 199" (parameter read is
disabled) in Pr.296. Doing so may cause abnormal operation.
• The means to reset the password varies according to how the reset command is sent (from the PU, through RS-485
communication, or via a communication option).
All parameter clear
Parameter clear
○: Password reset enabled, ×: Password reset disabled
• For the information how to perform Parameter clear or All parameter clear with the parameter unit or via a communication
option, refer to the Instruction Manual of the parameter unit or the option. (For the operation panel (FR-DU08), refer to
551. For RS-485 communication using the Mitsubishi inverter protocol, refer to
the MODBUS-RTU communication protocol, refer to
 Access to parameters according to the password status
Password protection disabled / Parameters
Parameter
Pr.296 = 9999 Pr.297 =
9999
*1
Read
Pr.296
*1
Write
*1
Read
Pr.297
Write
×
Pr.CLR write
(Parameter clear)
ALL.C All write
(All parameter
clear)
Pr.CPY write
(Parameter copy)
○: Enabled, ×: Disabled
*1
Reading/writing is disabled if reading is restricted by the Pr.160 setting. (Reading is available in the Network operation mode regardless of the
Pr.160 setting.)
" appears when a password-protected parameter is attempted to be read/written.
PU (operation panel or
parameter unit)
×
unlocked
Pr.296 ≠ 9999 Pr.297 =
9999
*1
RS-485
Communication
communication
×
page
page
498.)
Parameters locked
Pr.296 ≠ 9999 Pr.297 = any of
0 to 4 (read only)
×
*4
×
*2
×
5.4 (E) Environment setting parameters
option
484. For RS-485 communication using
Password locked up
Pr.296 = 100 to 106, or 199
Pr.297 = 5 (read only)
×
*3
*4
×
*2
×
5. PARAMETERS
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