Mitsubishi Electric FR-CC2-N Series, Instruction Manual

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5. PARAMETERS
5.2 (E) Environment setting 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 103, 105, or 106" 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 unlocked with all parameter clear, but doing so will also clear the other parameters.
• All parameter clear cannot be performed during the operation.
• For the all parameter clear method, refer to the following.
(For the operation panel, refer to page 131 . For RS-485 communication using the Mitsubishi inverter protocol, refer to page
108 . For RS-485 communication using the MODBUS RTU communication protocol, refer to page 119 .)

Parameter operations during password locking/unlocking
○ : Enabled, ×: Disabled
*1 Inputting a password is possible but the locked-up password cannot be unlocked or reset even with the valid password.
NOTE
• When a password has been set and parameters are locked, Parameter copy cannot be performed using the operation panel.
Parameters referred to
Pr.77 Parameter write selection

page 78
5.2.9 Free parameter
Any number within the setting range of 0 to 9999 can be input.
For example, these numbers can be used:
• As a unit number when multiple units are used.
• As a pattern number for each operation application when multiple units are used.
• As the year and month of introduction or inspection.
NOTE
• Pr.888 and Pr.889 do not influence the operation of the converter unit.
Operation
Password unlocked Password locked Password lock in operation
Pr.296 = "9999",
Pr.297 = "9999"
Pr.296 ≠ "9999",
Pr.297 = "9999"
Pr.296 ≠ "9999",
Pr.297 = "0 to 4" (read value)
Pr.296 = "100 to 103, 105,
106"
Pr.297 = "5" (read value)
Pr.296
Read ○ ○ ○ ○
Write ○ ○ × ×
Pr.297
Read ○ ○ ○ ○
Write × ○ ○
○
*1
Parameter clear ○ ○ × ×
All parameter
clear
○ ○ ○ ○
Parameter copy ○ ○ × ×
Pr. Name Initial value Setting range Description
888
E420
Free parameter 1 9999 0 to 9999
Any value can be input.
The settings are retained even if the converter unit power is
turned OFF.
889
E421
Free parameter 2 9999 0 to 9999