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6 FUNCTIONAL TESTS (USER SETTINGS)
In tests that cause tripping, the trip target type may not match the unit under test. For example, if a Zone 1
ground fault is being tested, Zone 2 may pick up and trip the relay before the fault is in Zone 1's characteristic.
The target information will reflect the Zone 2 trip, not Zone 1. It is important to remember this during the tests.
Use a continuity tester with high-input impedance, such as a digital ohmmeter, to monitor the A1 contact during
relay testing.
Tripping contacts will operate while the LPS-D is in test mode unless the outputs were dis-
abled by the user.
NOTE
Before a test can be performed, the LPS-D must be put in test mode and select the function to be tested. The
test mode is set as follows:
1. Apply rated DC and wait for relay initialization to complete (if this has not already been done), indicated by
the green status LED on the front of the relay.
2. Press the [ACT] key and
Enter Password:
is displayed. If this is the first time the Control Level functions are used, the password has the factory value
"5678.". This password must be changed before any Control functions can be accessed. See Section
8.1.21: CHANGE PASSWORD on page 8–18 for details on changing the password.
3. Enter the current Control Level password. If the password is not known, see Section 11.8.13 LUI PASS-
WORD REPORT on page 11–20 or Chapter 12: ASCII COMMUNICATIONS for details on viewing the
password. When the correct password is entered, the actions menu is displayed.
4. Scroll with the arrow keys until
5. Relay Test
is displayed, then press the [ENT] key.
5. Scroll through the different test mode functions or enter the number of the desired test, such as 38 for the
Fault Detector. Press [ENT] and the cursor will be placed on the fault detector test. Press [ENT] again and
the test is started. When the LPS-D picks up for the selected function it closes the A1 contacts.
6. To exit test mode, press the [ACT] key. Scroll with an arrow key until
5. Relay Test
is displayed, then press the [ENT] key. Scroll until the display indicates
1. END TEST MODE
and press the [ENT] key. The user will be prompted to Enable Outputs. Press [1/Y] and [ENT]. The status
LED should return to green, indicating that normal operation has resumed.
The relay can be tested without using the keypad. A PC and communications program are required to establish
communications, change the password, change settings for the tests, and place the unit into test mode. Follow
the procedure in Chapter 4: ACCEPTANCE/PERIODIC TESTS to test the relay with ALPS-Link or ASCII.
GE Power Management
LPS-D Line Protection System
6.1 LPS-D FUNCTIONAL TESTS
6.1.4 ENTERING TEST MODE
6.1.5 USING ALPS-LINK (OPTIONAL)
6
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