Mitsubishi Electric 800 Series Instruction Manual page 171

5.4.10 Password function
Registering a 4-digit password can restrict parameter reading/writing.
Pr.
296 Password lock level
E410
297 Password lock/unlock
E411
The above parameters can be set when Pr.160 User group read selection = "0". However, when Pr.296  9999 (password
lock is set), Pr.297 can always be set, regardless of the setting in Pr.160.
*1 When Pr.297 = "0, 9999", writing is always enabled, but setting is disabled. (The display cannot be changed.)
 Parameter reading/writing restriction level (Pr.296)
• The level of the reading/writing restriction using the PU/Network (NET) operation mode operation command can be
selected with Pr.296.
Pr.296 setting

9999

*6
0, 100

1, 101

2, 102

3, 103

4, 104

5, 105

6, 106
99 to 199
Only the parameters registered in the user group can be read/written.
(For the parameters not registered in the user group, same restriction level as "4, 104" applies.)
: Enabled, : Disabled
*1 If the parameter reading is restricted by the Pr.160 User group read selection setting, those parameters are unavailable for reading even when
"" is indicated.
*2 If the parameter writing is restricted by the Pr.77 Parameter write selection setting, those parameters are unavailable for writing even when ""
is indicated.
*3 This restricts parameter access from the command source that can write a parameter under the PU operation mode (initially the operation panel
or the parameter unit). (For the PU operation mode command source selection, refer to
*4 This restricts parameter access from the command source that can write a parameter under the Network operation mode (initially the RS-485
terminals or a communication option). (For the NET operation mode command source selection, refer to
*5 Read/write is enabled only for the simple mode parameters registered in the user group when Pr.160 = "9999". Pr.296 and Pr.297 are always
read/write enabled whether registered to a user group or not.
*6 If a communication option is installed, an option fault Option fault (E.OPT) occurs, and the inverter output shuts off. (Refer to
*7 The PLC function user parameters (Pr.1150 to Pr.1199) can be written and read by the PLC function regardless of the Pr.296 setting.
170
5. PARAMETERS
5.4 (E) Environment setting parameters
Name Initial value
9999
9999
PU operation mode operation
*3
command
*1 *2
Read Write








Setting range
0 to 6, 99, 100 to Select restriction level of parameter reading/
106, 199 writing when a password is registered.
9999 No password lock
1000 to 9998 Register a 4-digit password
Displays password unlock error count. (Reading
*1
(0 to 5)
only) (Valid when Pr.296 = "100 to 106, or 199")
*1 No password lock
9999
NET operation mode operation command
RS-485 terminals / PLC function
*2
Read Write
 
 
 
 
 
 
 
 
*5
page
Description
*4
*7
Communication option
Read Write
 
 
 
 
 
 
 
 
214.)
page 214.)
page
*2
580.)