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10
DGP Digital Generator Protection System
GE Power Management
8.3 KEYPAD
8 INTERFACE
8
9. ENTER PASSWORD
This category is used to enter the MMI password that activates one of the two areas of input:
•
The first area of input allows the user to change settings (Settings Level).
•
The second area of input allows the user to access control actions (Control Level).
The privilege level reverts back to View Level when the MMI becomes idle, either by using the [END] key or if
the MMI times out (15 minutes). When the privilege level is View, values can be viewed but not changed.
After the [ENT] key is pressed, the display prompts the user with the message ENTER PASSWORD. The user
responds by pressing the digit keys representing the password. The digits are echoed with an asterisk (*). The
user then presses the [ENT] key, which displays SELECTED if the password was valid or REQUEST INVALID
if it was not. MMI privilege is set to the level associated with the selected password.
10. CHANGE PASSWORD
This category is used to change the password currently in effect. A password becomes effective through selec-
tion of Enter Password in this category.
After the [ENT] key is pressed, the display prompts with the message NEW PASSWORD. The user presses
digit keys that represent the new password. For security, the digits are echoed with an asterisk (*). The user
then presses the [ENT] key and is prompted with the message REPEAT. The new password must be entered
again followed by the [ENT] key. If the two entered passwords are the same, then the message CHANGED is
displayed. If they are not the same, then NOT CHANGED is displayed and the old password remains selected.
11. DIGITAL OUTPUT TEST
This category is used to test digital outputs of the DGP system.
After the [ENT] key is pressed, the display will show the first menu item, END TEST MODE. The user may then
select a test from the menu by using the arrow keys followed by the [ENT] key.
At this point the privilege level must be Control level. If the privilege level is wrong, then an
error message is displayed and the test is not performed.
If outputs are enabled, the user must specify if they want to disable protection. The message DISABLE
PROT? is displayed. The user presses [1/Y] for YES or [3/N] for NO followed by [ENT]. If the user indicates
NO, then the message CANCELLED is displayed and test selection is stopped. If user indicated YES, then the
test name will be redisplayed. The word ON will also be shown in the rightmost two characters of the display
and the test is performed.
To stop the digital output test and re-enable protection, the press the arrow keys until END TEST MODE is dis-
played, then press the [ENT] key. The test can also be stopped by pressing [END] [ENT] key sequence, which
ends the DGP session.
The available digital output tests are shown in Figure 8–4: [ACT] KEY MENU STRUCTURE on page 8–11.
NOTE
Summary of Contents for DGP Series
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Page 192: ...8 18 DGP Digital Generator Protection System GE Power Management 8 5 PASSWORDS 8 INTERFACE 8...
Page 260: ...B 4 DGP Digital Generator Protection System GE Power Management B 1 CHANGE NOTES APPENDIXB B...
Page 262: ...B 6 DGP Digital Generator Protection System GE Power Management B 1 CHANGE NOTES APPENDIXB B...
Page 268: ...D 2 DGP Digital Generator Protection System GE Power Management D 1 DGP WARRANTY APPENDIXD D...
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Page 277: ...GE Power Management DGP Digital Generator Protection System NOTES...