P.10.25
Date Code 20151029 Protection Manual SEL-411L Relay
Basic Relay Operations
Operating the Relay Inputs and Outputs
Assigning Control Outputs for Tripping and Closing
The procedure in the following steps shows a method for setting the relay to
operate the trip bus and the close bus at a typical substation. Relay factory
defaults assign control outputs OUT201 and OUT202 to the trip bus and
OUT203 to the close bus for a three-pole tripping circuit breaker. This
procedure assigns an additional close output at OUT205.
This example assumes that you have successfully established communication
with the relay (see Making an EIA-232 Serial Port Connection). In addition,
you must be familiar with relay access levels and passwords (see Changing
the Default Passwords: Terminal to change the default access level
passwords). You should also be familiar with
ACSELERATOR QuickSet (see
Section 6: PC Software).
Step 1. Configure the communications port.
a. Start
ACSELERATOR QuickSet.
b. On the top toolbar, open the Communications menu,
and then click Parameters.
You will see the Communication Parameters dialog
box similar to Figure 10.7.
c. Select the Data Speed, Data Bits, Stop Bits, Parity,
and RTS/CTS that match the relay settings.
The defaults are 9600, 8, 1, None, and Off,
respectively.
d. Click OK to update the
ACSELERATOR QuickSet
communications parameters.
e. Confirm that the Communications Status bar at the
bottom of the
ACSELERATOR QuickSet window says
Connected.
Step 2. Confirm the correct
ACSELERATOR QuickSet passwords.
a. Reopen the Communication menu and click
Parameters.
b. 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.
c. Click OK to accept changes and close the dialog box.
Step 3. Click Settings > Read.
The relay sends all configuration and settings data to
ACSELERATOR QuickSet.
Step 4. Access Interface Board 1 output settings.
a. Expand the Outputs branch of the Settings tree view.
b. Click Interface Board Outputs (see Figure 10.16).
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