Mitsubishi Electric FR-A820-00046 (0.4K) Instruction Manual page 333

NOTE
• After registering a password, the read value of Pr.297 is always one of "0 to 5".
• "
• Even if a password is registered, the parameters, which the inverter itself writes, such as inverter parts life are overwritten as
needed.
• Even if a password is registered, reading/writing is enabled for Pr.991 PU contrast adjustment when the parameter unit (FR-
PU07) is connected.
 Unlocking a password (Pr.296, Pr.297)
• There are two ways of unlocking the password.
• Enter the password in Pr.297. If the password matches, it unlocks. If the password does not match, an error occurs and
the password does not unlock. During Pr.296 = any of "100 to 106, or 199", if password unlock error has occurred 5 times,
correct password does not unlock the restriction. (Password lock in operation.)
• Perform all parameter clear.
NOTE
• If the password is forgotten, it can be unlocked with all parameter clear, but doing so also clears the other parameters.
• All parameter clear cannot be performed during the operation.
• During the conditions where parameter reading is disabled (Pr.296 = any of "0, 4, 5, 99, 100, 104, 105, or 199"), do not use
FR Configurator2. It may not operate correctly.
• The password unlocking method differs between the operation panel, parameter unit, RS-485 communication, and
communication option.
All parameter clear
Parameter clear
○: Password can be unlocked, ×: Password cannot be unlocked
• For the parameter clear and parameter all clear methods for the communication option and parameter unit, refer to the
Instruction Manual of each option. (For the operation panel (FR-DU08), refer to
of RS-485 communication, refer to
 Parameter operations during password locking/unlocking
Operation
*1
Read
○
Pr.296
*1
Write
○
*1
Read
○
Pr.297
Write ×
Parameter clear
○
execution
All parameter
○
clear execution
Parameter
○
copy execution
*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.)
*2 All parameter clear cannot be performed during the operation.
*3 Correct password will not unlock the restriction.
*4 Parameter clear can only be performed from the communication option.
332
5. PARAMETERS
5.7 (E) Environment setting parameters
" appears when a password restricted parameter is read/written.
Operation panel/
Parameter unit
○
×
page 637, and for the MODBUS-RTU communication protocol, refer to
Password unlocked
Pr.296 = 9999 Pr.296 ≠ 9999
Pr.297 = 9999 Pr.297 = 9999
○
*1
○
○
○
○
○
○
RS-485 Communication
communication option
○ ○
× ○
page 707 for the Mitsubishi inverter protocol
Password locked
Pr.296 ≠ 9999
Pr.297 = 0 to 4 (read value)
○
×
○
○
*4
×
*2
○
×
page 652.)
Password lock in operation
Pr.296 = 100, 106, 199
Pr.297 = 5 (read value)
○
×
○
*3
○
*4
×
*2
○
×
○: Enabled, ×: Disabled