Sel 411L - Page 821

P.13.9
Date Code 20151029 Protection Manual SEL-411L Relay
Time-Synchronized Measurements
Configuring High-Accuracy Timekeeping
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, Off, respectively.
d. Click OK to update the
ACSELERATOR QuickSet
communications parameters.
e. Type <Ctrl + T> to use the serial communications
terminal.
f. Type <Enter> to see whether the communications link
is active between
ACSELERATOR QuickSet and the
relay.
You will see the Access Level 0 = prompt in the
terminal window.
g. Exit the terminal window.
Step 2. Confirm the correct
ACSELERATOR QuickSet passwords:
a. Reopen the Communications 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.
Step 3. Click Settings > Read to read the present configuration in the
relay.
The relay sends all configuration and settings data to
ACSELERATOR QuickSet.
Step 4. Click the + mark next to the Group you want to program on the
Settings tree view.
This example uses Group 1.
You will see the Protection Free-Form Logic Settings dialog
box.
Step 5. Enter time trigger settings:
a. Click the button beside the first unused Protection
SEL
OGIC control equation row entry field to start the
Expression Builder.
b. On the left side of the SEL
OGIC control equation, select
Math Variables and double-click PMV64.
c. On the right side of the equation, select Analog
Quantities > Time and Date Management.
d. Double click THR (Time in Hours).
e. Use the # character to add a comment to the line.
f. When finished, click Accept.