Sel 421 - Page 295

U.6.33
Date Code 20090715 User’s Guide SEL-421 Relay
Testing and Troubleshooting
Checking Relay Operation
Step 3. Upload the new settings to the SEL-421.
a. Click File > Send.
ACSELERATOR QuickSet prompts you for the settings
class you want to send to the relay, as shown in the
Group Select dialog box in Figure 6.26.
b. Click the check box for Group 1 and for Breaker
Monitor.
c. Click OK.
d.
ACSELERATOR QuickSet responds with a Transfer
Status dialog box as in Figure 6.26.
If you see no error message, the new settings are loaded
in the relay.
NOTE: The Relay Editor dialog boxes
shown in Figure 6.26 are for the
SEL-421. The SEL-421-1 SEL-421-2
dialog boxes do not contain
Automation 2 through Automation 10
setting instances.
Figure 6.26 Uploading Group 1 and Breaker Monitor Settings to the SEL-421
Step 4. Display the F32Q and R32Q Relay Word bits on the front-
panel LCD screen.
a. Access the front-panel LCD
MAIN MENU.
b. Highlight
RELAY ELEMENTS and press {ENT}.
You will see a
RELAY ELEMENTS screen with SEARCH
highlighted at the bottom of the screen.
c. Press {ENT} to go to the
ELEMENT SEARCH submenu of
Figure 6.20.
d. Enter characters in the text input field using the
navigation keys.
e. Highlight
F and press {ENT} to enter the F character.
f. Enter the
3, 2, and Q characters in like manner.
g. Highlight
ACCEPT and press {ENT}.
The relay displays the screen containing the F32Q and
R32Q elements, as shown in Figure 6.27.
Figure 6.27 RELAY ELEMENTS LCD Screen Containing Elements F32Q and
R32Q
PRESS to search
RELAY ELEMENTS
SEARCH
ROW 20 ROW 21
32SPOR
=0 32IE =0
32SPOF
=0 32VE =0
32QR =0 32QGE =0
32QF =0 32QE =0
R32Q =0 50GR =0
F32Q =0 50GF =0
R32P =0 50QR =0
F32P =0 50QF =0
Courtesy of NationalSwitchgear.com