80190-560-01-R A-B Interface Module
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IN STOCK80190-560-01-R A-B Interface Module
The 825-P front panel gives you access to most of the information that the relay measures and stores. You can also use the front panel controls to view or modify relay settings. All of the front panel functions are accessible using the seven-button keypad and LCD display. Use the keypad to maneuver within the front panel’s menu structure, as described in detail throughout the remainder of this section. Table 4 describes the function of each push button.
The relay front panel typically operates at Access Level 1 and allows any user to view relay measurements and settings. Some activities, such as editing settings and controlling output contacts, are restricted to those operators who know the relay Access Level 2 password when enabled. The factory default setting for the Access Level 2 password is “DISABLED”, which provides unrestricted access.
When you try to perform an Access Level 2 activity, the relay determines whether you have entered the correct Access Level 2 password since the front panel inactivity timer expired or since the “Reset Access Lvl” command has been executed from the Main Menu. If you have not, the relay displays the screen shown in the Password Entry screen shown in Figure 26 for you to enter the password.
As you enter relay settings, the relay checks the setting entered against the setting’s own range as published on the relay setting sheet. If an entered setting falls outside its range, the relay immediately responds with the message “Out of Range” and prompts you to reenter the setting. In addition to the immediate range check, several of the settings have interdependency checks with other settings. The relay checks setting interdependencies after you answer Y to the “Save Settings?” prompt, but before the settings are stored. If any one of these checks fail, the relay issues one of the error messages shown in the Table 5, and returns you to the settings list for a correction.
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