Password Access

Overview

You can set a password for the LTMCU to limit access to configuration of LTMR controller parameters to authorized personnel. When a password has been set, other users can view the information displayed by the LTMCU, but cannot edit parameter values.

Entering a Password

The LTMCU password must be an integer from 0000 to 9999.

The process of entering a password is similar to editing a numerical setting.

Step	Description
1	Select Services - HMI setting - Password - Change passwd to navigate to the HMI Keypad Password parameter.
2	Press OK to step into the Password setting. The value 0000 appears by default, and is not necessarily the active password.
3	Press OK again to select the first (left-most) digit for editing.
4	Use or to increase or decrease the first digit value.
5	Press to move to the second digit for editing. Use or to increase or decrease the second digit value. Note: Other digits remain hidden and are displayed as an asterisk.
6	Press to move to the third digit for editing. Use or to increase or decrease the third digit value.
7	Press to move to the fourth digit for editing. Use or to increase or decrease the fourth digit value.
8	Press OK to complete the entry of the new password. The LCD displays the screen for confirming the new password.
9	Repeat steps 3 through 8. When the new password is confirmed, the LCD returns to the previous (higher) level screen.

Authorizing Parameters Editing

When password protection is enabled, editing a parameter setting requires entering the password.

The process of entering a password is similar to editing a numerical setting.

Step	Description
1	Press contextual menu navigation keys to navigate to the parameter to edit.
2	Press . The screen to enter the password is displayed.
3	Press OK to select the first (left-most) digit for editing.
4	Use or to increase or decrease the first digit value.
5	Press to move to the second digit for editing. Use or to increase or decrease the second digit value. Note: Other digits remain hidden and displayed as an asterisk.
6	Press to move to the third digit for editing. Use or to increase or decrease the third digit value.
7	Press to move to the fourth digit for editing. Use or to increase or decrease the fourth digit value.
8	Press OK to complete the entry of the password. When the password is confirmed, you can edit the parameter value.