Parker 590 series, Product Manual

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5-6
The Man-Machine Interface (MMI)
590 Series DC Digital Converter
Password Protection
When in force, the password prevents unauthorised parameter modification by making all
parameters “read-only”. If you attempt to modify a password protected parameter, it will cause
“PASSWORD ??” to flash on the display. By default, the password feature is disabled, i.e.
0x0000.
There are two password parameters, stored in the PASSWORD menu at level 1:
ENTER PASSWORD and CHANGE PASSWORD.
The ENTER PASSWORD and CHANGE PASSWORD values are hidden by “XXXX” until
you press the
M key to begin editing the parameter.
To Activate Password Protection
1. Use the
↑
(UP) and
↓
(DOWN) keys in the CHANGE
PASSWORD parameter to set a password (anything
other than 0000). Press the
E key to exit the parameter.
2. Move to the ENTER PASSWORD parameter. Enter
any number other than the password and press the
E
key to exit. The system is now `password locked’.
Having activated the password protection, you can no
longer edit the CHANGE PASSWORD parameter until you deactivate the password protection.
To Deactivate Password Protection
Enter the current password in the ENTER PASSWORD
parameter. Press the
E key to exit.
To Reactivate Password Protection
Having deactivated your password, you can quickly
reactivate the same password by pressing the
M key when
in the CLEAR PASSWORD menu.
This clears the value of the password in the CHANGE
PASSWORD menu and instead displays “
**** ”.
Note: At default the password is 0000, password protection is not activated because 0000 is
the value for both CHANGE PASSWORD and ENTER PASSWORD.
1
1
0x0000
CHANGE PASSWORD
1
1
0x0000
ENTER PASSWORD
1
1
0x0000
ENTER PASSWORD
1
1
CLEAR PASSWORD