Schweitzer Engineering Laboratories SEL-321 - Access; Breaker; Close

Date Code 20011026 Communications 3-7
SEL-321/321-1 Instruction Manual
You may use any command from the "=>>" prompt. The relay pulses the ALARM contact
closed for one second after any Level 2 access attempt (unless an alarm condition exists).
ACCESS
ACCESS allows you to enter Access Level 1. A password is required. The default password at
this level is set to OTTER at the factory; from Access Level 2, use the PASSWORD command to
change this password, if you wish.
The following display indicates successful access:
=ACCESS <ENTER>
ACCESS <ENTER>ACCESS <ENTER>
ACCESS <ENTER>
Password: ? O
OO
OTTER <ENTER>
TTER <ENTER>TTER <ENTER>
TTER <ENTER>
EXAMPLE: BUS B, BREAKER 3 Date: 02/01/93 Time: 15:10:58.903
Level 1
=>
If you enter wrong passwords during three consecutive attempts, the relay pulses the ALARM
contact closed for one second. This feature can alert personnel to an unauthorized access attempt
if the ALARM contact is connected to a monitoring system.
BREAKER
Use the BREAKER command to enter breaker control access, Access Level B. A password is
required to access this level. The default password for this level is set to EDITH at the factory;
use the PASSWORD command to change this password.
The following display indicates successful access:
=>BREAKER <ENTER>
BREAKER <ENTER>BREAKER <ENTER>
BREAKER <ENTER>
Password: ? EDITH <ENTER>
EDITH <ENTER>EDITH <ENTER>
EDITH <ENTER>
EXAMPLE: BUS B, BREAKER 3 Date: 02/01/93 Time: 15:11:14.607
Breaker Level
==>
You may use any Level 1 or Level B command from the "==>" prompt. The relay pulses the
ALARM contact closed for one second after any Level B access attempt (unless an alarm
condition exists).
CLOSE
The CLOSE command asserts the CC element if no trip is asserted and the breaker is open. The
CC element then remains asserted for 30 cycles, or until the breaker closes.
To use the CC element for breaker closing, program the CC element to an output contact using
the SET L command. For example, if you want to use Output 15 to close the breaker, set OUT15
= CC.