Functional description
20
VMD460-NA_D00001_05_M_XXEN/01.2020
3.4.8
Automatic self test
The device runs a continuous self test during which internal malfunctions are detected
and shown on the display as error codes. As soon as the VMD460-NA detects an internal
malfunction, it issues a disconnection command.
3.5 Other functions
3.5.1
Password protection
Menu: 4. System -> :
4. Password
The password protection is disabled by default. If no password is set, all parameters and
device settings can be freely changed and configured.
It is possible to navigate through the menu even if the password protection is enabled.
The following parameters can always be changed (without entering a password): Histo-
ry, Language, TEST and RESET.
To change parameters, a password is required. A password remains active until exiting
the menu. After 5 minutes of inactivity, the menu is exited automatically.
3.5.1.1
Single-stage password protection (system password)
The single-stage password protection is always available. After entering the correct
"System" password, all parameters can be changed.
