U.4.12
SEL-421 Relay User’s Guide Date Code 20090715
Basic Relay Operations
Checking Relay Status
d. Click OK to update the ACSELERATOR QuickSet
communications parameters and connect to the relay.
e. Confirm that the Communications Status bar at the
bottom of the
ACSELERATOR QuickSet window says
Connected.
Step 2. Confirm that you have loaded the correct passwords in
ACSELERATOR QuickSet.
a. Enter your Access Level 1 password in the Level One
Password text box, and your Access Level 2 password
in the Level Two Password text box.
b. Click OK to accept changes and close the dialog box.
Step 3. Click Meter and Control in the top toolbar HMI menu to start
the
ACSELERATOR QuickSet operator interface.
Step 4. Click the Status button of the HMI tree view (see Figure 4.8).
ACSELERATOR QuickSet displays the relay status with a
display similar to that in Figure 4.6.
Figure 4.8 Retrieving Relay Status: ACSELERATOR QuickSet
Checking Relay
Status: Front Panel
Use the front-panel display and navigation pushbuttons to check SEL-421
status. See Section 5: Front-Panel Operations for information on using the
relay front panel.
Step 1. Apply power to the relay, and note that the LCD shows a
sequence of screens called the
ROTATING DISPLAY.
(If you do not operate the front panel for a certain period, the
relay will enter front-panel time-out mode and you will see the
sequential screens of the
ROTATING DISPLAY.)
Step 2. Press the {ENT} pushbutton to display the
MAIN MENU of
Figure 4.9.
Courtesy of NationalSwitchgear.com
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