Sel SEL-421 - Page 143

U.4.13
Date Code 20020501 User’s Guide SEL-421/SEL-421-1 Relay
Basic Relay Operations
Checking Relay Status
Passwords: Terminal on page 4.10 to change the default access level
passwords. You should also be familiar with the
ACSELERATOR software. See
Section 3: PC Software in the User’s Guide.
Step 1. Configure the communications port. Start the
ACSELERATOR
software. On the top toolbar, open the Communication menu,
and then click Communication Parameters. You will see the
Communication Parameters dialog box similar to Figure 4.8.
Select the Data Speed, Data Bits, Parity, and Stop Bits that
match the relay settings. Defaults are 9600, 8, N, 1,
respectively. Click OK to update the
ACSELERATOR software
communications parameters and connect to the relay. Confirm
that the Communications Status bar at the bottom of the
ACSELERATOR window says “Connected.”
Step 2. Confirm that you have loaded the correct passwords in the
ACSELERATOR software. 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. Click the OK
button to accept changes and close the dialog box.
Figure 4.8 ACSELERATOR Software Port Parameters and Password Entry.
Step 3. Start the ACSELERATOR software operator interface. In the top
toolbar HMI menu, click Meter and Control.
Step 4. Select
ACSELERATOR status information. Click the Status
button of the HMI tree view. See Figure 4.9.
Step 5. View relay status. The
ACSELERATOR software displays relay
status with a display similar to that in Figure 4.7.
Figure 4.9 Retrieving Relay Status: ACSELERATOR Software.