Schweitzer Engineering Laboratories SEL-351-5, Instruction Manual

Page: 472 / 706

10.36
SEL-351-5, -6, -7 Relay Instruction Manual
Date Code 20070117
Serial Port Communications and Commands
Command Explanations
==> BRE R <Enter>
Reset Trip Counters and Accumulated Currents/Wear
Are you sure (Y/N) ?
Y <Enter>
FEEDER 1 Date: 02/03/01 Time: 05:41:07.289
STATION A
Rly Trips= 0
IA= 0.0 IB= 0.0 IC= 0.0 kA
Ext Trips= 0
IA= 0.0 IB= 0.0 IC= 0.0 kA
Percent wear: A= 0 B= 0 C= 0
LAST RESET 02/03/01 05:41:07
See Breaker Monitor on page 8.2 for further details on the breaker monitor.
CLO Command (Close Breaker)
The CLO (CLOSE) command asserts Relay Word bit CC for 1/4 cycle when
it is executed. Relay Word bit CC can then be programmed into the CL
SEL
OGIC
control equation to assert the CLOSE Relay Word bit, which in turn
asserts an output contact (e.g., OUT102 = CLOSE) to close a circuit breaker.
See
Figure 6.1 .
See the Note in the Set Close discussion, following Figure 6.1 , for more
information concerning Relay Word bit CC and its recommended use, as used
in the factory settings.
To issue the CLO command, enter the following:
==> CLO <Enter>
Close Breaker (Y/N) ? Y <Enter>
Are you sure (Y/N) ? Y <Enter>
==>
Typing N <Enter> after either of the above prompts will abort the command.
The CLO command is supervised by the main board Breaker jumper (see
Table 2.5 and Table 2.6 ). If the Breaker jumper is not in place (Breaker jumper
= OFF), the relay does not execute the CLO command and responds:
Aborted: No Breaker Jumper
GRO n Command (Change Active Setting Group)
The GRO n command changes the active setting group to setting Group n . To
change to settings Group 2, enter the following:
==> GRO 2 <Enter>
Change to Group 2
Are you sure (Y/N) ?
Y <Enter>
Active Group = 2
==>
The relay switches to Group 2 and pulses the
ALARM
contact. If the serial port
AUTO setting = Y, the relay sends the group switch report: