GE Power Management
LPS-D Line Protection System
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4 ACCEPTANCE/PERIODIC TESTS
4.1 OVERVIEW
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If this is the first time the Actions Level functions are used, the password has the factory value “456.”. This
password must be changed before any Control functions can be accessed. See Chapter 8: LOCAL USER
INTERFACE for details on changing the password.
3.
If using Remote Communications, enter the current Control Level password. If the password is not known,
see Chapter 11: ALPS-LINK USER GUIDE or Chapter 12: ASCII COMMUNICATIONS for details on view-
ing 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.
4.1.9 USING COMMUNICATIONS (OPTIONAL)
The relay can be tested without using the keypad. A PC and a communications program, either ALPS-Link or
an ASCII terminal emulator, are required to establish communications, change the passwords, change settings
for the tests, and place the unit into test mode. The example used here is for ALPS-Link. All the functions avail-
able at the keypad are also available through communications.
This section contains a step-by-step procedure to test the relay, from setting up communications to the applica-
tion of the voltage and current inputs. You must be familiar with the ALPS-Link software. Refer to Chapter 11:
ALPS-LINK USER GUIDE for more details on using ALPS-Link.
a) HARDWARE SETUP
The appropriate cable to connect the PC to the relay depends on the connections the PC and the LPS-D
require. The LPS-D front port PL-1 accepts a 9-pin male D-connector. Port PL-2 and the optional PL-3 accept
a 25-pin male D-connector. The PC used may require a 9- or 25-pin connector. A null modem cable is used to
connect two communications ports without a modem. Null modem cables are shown in Chapter 8: LOCAL
USER INTERFACE for connecting to the LPS-D to a PC.
b) PC SOFTWARE SETUP
The software setup consists of starting Windows, loading the software into the PC, starting the program, and
configuring the program to the port and baud rate of the PC and LPS-D. ALPS-Link is a Windows program.
Refer to Chapter 11: ALPS-LINK USER GUIDE or Chapter 12: ASCII COMMUNICATIONS or the manuals that
came with your computer for directions on using a mouse, menu bars, dialog boxes and windows.
c) LOAD & START ALPS-LINK
1.
Use the installation guide in Chapter 11: ALPS-LINK USER GUIDE or Chapter 12: ASCII COMMUNICA-
TIONS for directions for loading ALPS-Link into the PC.
2.
Double-click on the group icon that contains ALPS-Link to open the window. Start the program by double-
clicking the ALPS-Link icon.
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