Mitsubishi Electric 800 Series, Инструкция по эксплуатации, Страница: 254 / 727

(E) Environment setting parameters
PARAMETERS
253
5
GROUP
E
5.7.10
Password function
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


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 .
 : Enabled,

: Disabled

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.

If the parameter writing is restricted by the Pr.77 Parameter write selection setting, those parameters are unavailable for writing even when
"

" is indicated.

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
page 301 .)

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
page 301 .)

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.

If a communication option is installed, an option fault Option fault (E.OPT) occurs, and the inverter output shuts off. (Refer to page 641 .)

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.
 Registering a password (Pr.296, Pr.297)
• The following section describes how to register a password.
1) Set the parameter reading/writing restriction level. ( Pr.296

"9999")

During Pr.296 = any of "100 to 106, 199", if password unlock error has occurred 5 times, correct password will not unlock the restriction. All
parameter clear can unlock the restriction. (In this case, the parameters are returned to their initial values.)
2) Write a four-digit number (1000 to 9998) in Pr.297 as a password. (Writing is disabled when Pr.296 ="9999".) When a
password is registered, parameter reading/writing is restricted with the restriction level set in Pr.296 until unlocking.
Registering a 4-digit password can restrict parameter reading/writing.
Pr. Name Initial value Setting range Description
296
E410
Password lock level
9999
0 to 6, 99,
100 to 106, 199 Select restriction level of parameter reading/
writing when a password is registered.
9999 No password lock
297
E411
Password lock/unlock
9999
1000 to 9998 Register a 4-digit password
(0 to 5)

Displays password unlock error count. (Reading
only) (Valid when
Pr.296 = "100 to 106, or 199")
9999

No password lock
Pr.296
setting
PU operation mode operation
command

NET operation mode operation command

RS-485 terminals / PLC
function

Communication option
Read

Write

Read Write

Read Write

9999      
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.)
Pr.296 setting Password unlock error restriction Pr.297 display
0 to 6, 99 No restriction Always displays 0
100 to 106, 199

Restricted at fifth error Displays the error count (0 to 5)