Date Code 20010731 Serial Port Communications and Commands 8-27
SEL-352-1, -2 Instruction Manual
Figure 8.4: TCMD Relay Word Bit
If the breaker opens successfully based on the 52A indication at the end of the 30 cycles, the
relay responds with “Breaker OPENED.” If the breaker does not open based on the 52A
indication at the end of the 30 cycles, the relay responds with “Breaker CLOSED.”
The TCMD bit typically is used as part of the trip input assignments such as TRIP3. If the OPE
command is issued, the relay responds as if it had received a trip initiation. If the retrip logic is
used, the relay will close the retrip output contact. The TCMD bit may be used anywhere in the
logic that meets your breaker control application needs.
To open the circuit breaker by command, type OPE <ENTER>. The prompt “Open Breaker
(Y/N) ?” is displayed. Then “Are you sure (Y/N) ?”. Typing N <ENTER> after either of the
above prompts aborts the opening operation with the message “Command Aborted.”
If the main board jumper JMP6B is not in place, the relay responds: “Aborted: Breaker Jumper
Not in Place.”
==>OPE<ENTER>
Open Breaker (Y/N) ?
Y<ENTER>
Are you sure (Y/N) ?
Y<ENTER>
Breaker OPENED
==>
PAS (Passwords)
Access Level 2
The PASSWORD command allows you to inspect or change existing passwords.
The factory default passwords for Access Levels 1, B, and 2 are:
Access Level
Factory Default Password
1 OTTER
B EDITH
2 TAIL
Use PAS<ENTER> to inspect passwords. The password for Level 1, B, and 2 are displayed.
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