Mitsubishi Electric 800 Series Instruction Manual (Function page 221

 Clearing a parameter from a user group (Pr.174)
• To delete Pr.3 from a user group.
Operating procedure
1.
Power ON
Make sure the motor is stopped.
2.
Changing the operation mode
Press the PU/EXT key to choose the PU operation mode. The PU LED turns ON.
3.
Selecting the parameter setting mode
Press the MODE key to choose the parameter setting mode. (The parameter number read previously appears.)
4.
Selecting a parameter
Turn the setting dial or press the UP/DOWN key until "P.174" (Pr.174) appears.
5.
Parameter read
Press the SET key. "9999" appears.
6.
Clearing the parameter
Turn the setting dial or press the UP/DOWN key until "3" (Pr.3) appears. Press the SET key to delete the parameter.
"3" blinks.
To continue deleting parameters, repeat steps 5 and 6.
NOTE
• Pr.77 Parameter write selection, Pr.160, Pr.296 Password lock level, Pr.297 Password lock/unlock, and Pr.991 PU
contrast adjustment can always be read regardless of the user group setting. (For Pr.991, only when the FR-LU08 or the
FR-PU07 is connected.)
• Pr.77, Pr.160, Pr.172 to Pr.174, Pr.296, and Pr.297 cannot be registered in a user group.
• When Pr.174 is read, "9999" is always displayed. "9999" can be written, but it does not function.
• Pr.172 is disabled if set to a value other than "9999".
Parameters referred to
Pr.77 Parameter write selectionpage 209
Pr.296 Password lock level, Pr.297 Password
Pr.991 PU contrast adjustmentpage 202
220
9. (E) Environment Setting Parameters
9.14 Extended parameter display and user group function
lock/unlockpage 212