Diagnostics Optimization CT MODBUS RTU Technical Data
306
E300 Design Guide
Issue Number: 1
state changes to status mode and security is locked. (The security level that is active, provided
User Security Code
(
H01
) has been saved as a non-
zero value, if shown in
Security Status
(
H03
).
When security is set up and locked:
Parameter access is restricted as shown in the table above.
User Security Code
(
H01
) reads as zero except in parameter edit mode. Therefore it is not possible to read the value of the security code when any
level of security is active and locked.
Security can be unlocked as follows:
If read-only security is set and locked then any attempt to edit any read/write parameter causes “Security code” to be displayed on the first row of the
display. When the Up or Down keys are pressed the second row shows the code being adjusted. On setting the code the user presses the Enter key.
If the correct code has been entered then the drive switches to Parameter edit mode on the parameter the user selected to edit, but if the correct code
has not been entered the notification “Incorrect security code” is displayed for 2 s and the drive returns to Parameter view mode.
If Status only or No access security is set and locked then any attempt to leave status mode causes the security code to be requested as per the
process described above. If the security code entered must be correct for the keypad state machine to switch to the Parameter view mode. It is then
possible to access all parameters normally.
Security can be cleared as follows:
Security must be unlocked.
The
User Security Code
(
H01
) should be set to zero. For security to remain cleared after power down then a parameter save should be performed.
At any time
Security Status
(
H03
) can be changed between 0 and 1 to restrict access to Menu A alone or to all menus. If the change is made by a
keypad the new value becomes active on leaving parameter edit mode.
It should be that
Security Status
(H03) is a volatile parameter and that the actual state of the security system is stored in
Security Status
(H03) and
Menu Access Status
(J68), which are both power-down save parameters. Therefore the security status will be stored when the drive goes into the
under-voltage state. If the drive is already in the under-voltage state the security state should be saved by writing 1001 to
Parameter mm.00
(mm.00)
and initiating a reset.
Security Status
(
H03
) shows the security that will apply when security is enabled by setting a non-zero value for
User Security Code
(
H01
).
If
Default Drive
(H04) is non-zero and a drive reset is initiated then the drive will load and save default parameters. If
Default Drive
(H04) = 1 then 50
Hz defaults are loaded and if
Default Drive
(
H04
) = 2 then 60 Hz defaults are loaded. This parameter has priority over actions defined by
Parameter
mm00
(
mm00
) and
Parameter Cloning
(N01). If
Default Drive
(
H04
) is used to initiate loading defaults the it is cleared along with
Parameter
mm00
(
mm00
) and
Parameter Cloning
(
N01
) when the action is completed.
H03
Security Status
Mode
Open-Loop, RFC-A, RFC-S
Minimum
0
Maximum
3
Default
Units
Type
8 Bit Power Down Save
Update Rate
Background write
Display Format
Standard
Decimal Places
0
Coding
RO, TE, ND, NC, PT
Value
Text
0
None
1
Read-only
2
Status-only
3
No Access
H04
Default Drive
Mode
Open-Loop, RFC-A, RFC-S
Minimum
0
Maximum
2
Default
0
Units
Type
8 Bit Volatile
Update Rate
Background read
Display Format
Standard
Decimal Places
0
Coding
RW, TE, NC
Value
Text
0
None
1
Standard
2
US
Summary of Contents for 03200106
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