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4 ACCEPTANCE TESTS
4.4 USING GE-LINK
Testing the relay without using the keypad is accomplished via a PC running the GE-Link program. GE-Link is
required to establish communications, change the password, change settings for the tests, and place the unit
into test mode.
The following section is intended to give a step-by-step procedure to test the relay, from setting up communica-
tions to the application of the voltages and current inputs. It will be necessary to be familiar with the GE-Link
software. Refer to Chapter 10: GE-LINK SOFTWARE for detailed information on using GE-Link.
The cable used to connected the DGP to a PC depends on the DGP and PC port settings. The DGP PL-1 port
accepts a 25-pin male D-connector; the COMM port accepts a 9-pin male D-connector. The PC may require a
9 or 25-pin connector depending on its configuration. Null-modem cable wiring is shown in Figure 9–1: DGP
COMMUNICATIONS WIRING on page 9–3 for connecting the DGP system with a 9-pin to 25-pin and a 25-pin
to 25-pin setup.
The software setup requires loading the software on to the PC, starting the program, and configuring the pro-
gram to match the port settings and baud rate of the system.
a) LOAD & START GE-LINK
1. Insert the CD containing the compressed GE-Link file or download it onto your computer. Double click on
GE-LINK icon and follow the instructions to load the required components.
2. Start the program by double-clicking the GE-LINK icon or through the Windows Start Menu.
b) SET UP A NEW TEST UNIT
1. Set GE-Link to access the NewSite page. The default is always NewSite. To change this default name,
enter the new name is the Site Name box (for example, TestSite) and click the Save button.
2. Select File > Add new IED. Select appropriate IED type from the IED Type scroll list (see Figure 4–1:
ADDING A NEW IED below). The correct IED type can be obtained by viewing the DGP model with the
MMI.
3. The IED Description can be changed to TEST UNIT, for example, once created.
4. Enter the Unit ID and select the appropriate COM Port and Baud Rate. For DGP models with the GE
Modem protocol, type decoded remote passwords into the Passwords box. If the current passwords are
not known, refer to Chapter 8: INTERFACE for information on how to display them. Click Save when done.
5. NOTE: Baud rate, parity and stop bits are set to default. See following section for details.
GE Power Management
DGP Digital Generator Protection System
4.4 USING GE-LINK
4.4.1 DESCRIPTION
4.4.2 HARDWARE SETUP
4.4.3 SOFTWARE SETUP
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