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

5.7.14 Password

Registering a 4-digit password can restrict parameter reading/writing.
Pr. Name
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 or 9999", writing is always enabled, but setting is invalid. (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.
PU operation mode operation
Pr.296 setting
Read
9999 ○
*6
×
0, 100
1, 101 ○
2, 102 ○
3, 103 ○
4, 104 ×
5, 105 ×
6, 106 ○
Only the parameters registered in the user group can be read/written.
99, 199
group, same restriction level as "4, 104" applies.)
*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
(FR-DU08) 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, the 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.
 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")
Pr.296 setting Password unlock error restriction
0 to 6, 99 No restriction
*1
Restricted at fifth error
100 to 106, 199
*1 During Pr.296 = any of "100 to 106, and 199", if password unlock error has occurred 5 times, correct password does 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) to 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.
Initial value
9999
9999
*3
command
RS-485 terminals / PLC function
*1 *2
Write
○ ○
× ×
× ○
× ○
○ ○
× ×
× ○
○ ×
Setting range
0 to 6, 99, 100 Select restriction level of parameter reading/writing
to 106, 199 when a password is registered.
9999 No password lock
1000 to 9998 Register a 4-digit password
Displays password unlock error count. (Reading only)
*1
(0 to 5)
(Valid when Pr.296 = "100 to 106, or 199")
*1
No password lock
9999
NET operation mode operation command
*7
*2
Read Write
○
×
×
○
×
×
○
×
*5
(For the parameters not registered in the user
Pr.297 display
Always displays 0
Displays the error count (0 to
5)
Description
*4
Communication option
Read Write
○ ○
× ×
○ ×
○ ○
○ ×
○ ×
○ ○
○ ×
○: Enabled, ×: Disabled
page 380.)
page 380.)
page 757.)
5. PARAMETERS
5.7 (E) Environment setting parameters
1
2
3
4
5
6
*2
7
8
9
10
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