Schweitzer Engineering Laboratories SEL-351-5, Instruction Manual

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D.11
Date Code 20070117
Instruction Manual SEL-351-5, -6, -7 Relay
Configuration, Fast Meter, and Fast Operate Commands
Message Definitions
It is common practice to route remote bits to output contacts to provide remote
control of the relay outputs. If you wish to pulse an output contact closed for a
specific duration, SEL recommends using the remote bit pulse command and
SEL
OGIC®
control equations to provide secure and accurate contact control.
The remote device sends the remote bit pulse command; the relay controls the
timing of the output contact assertion. You can use any remote bit (RB1–
RB16), and any SEL
OGIC
control equation timer (SV1–SV16) to control any
of the output contacts ( OUT101 – OUT107 ). For example, to pulse output contact
OUT104
for 30 cycles with Remote Bit RB4 and SEL
OGIC
control equation
timer SV4, issue the following relay settings:
via the SET command,
ESV =
4
Enable 4 SEL
OGIC
control equations
SV4PU =
0
SV4 pickup time = 0
SV4DO = 30 SV4 dropout time is 30 cycles
via the SET L command,
SV4 = RB4 SV4 input is RB4
OUT104 = SV4T route SV4 timer output to OUT104
To pulse the contact, send the A5E006430DDB command to the relay.
A5E3 Fast Operate
Breaker Control
The external device sends the message shown in Table D.10 to perform a fast
breaker open/close.
The relay performs the specified breaker operation if the following conditions
are true:
1. Conditions 1–5 defined in the A5E0 message are true.
2. The breaker jumper (JMP2B) is in place on the SEL-351 main
board.
A5CD Fast Operate
Reset Definition
Block
In response to an A5CD request, the relay sends the configuration block for
the Fast Operate Reset message, shown in
Table D.11 .
Table D.10 A5E3 Fast Operate Breaker Control
Data Description
A5E3 Command
06 Length
1 byte Operate code:
31-OPEN breaker
11-CLOSE breaker
1 byte Operate Validation: 4 • Operate code + 1
checksum 1-byte checksum of preceding bytes
Table D.11 A5CD Fast Operate Reset Definition Block (Sheet 1 of 2)
Data Description
A5CD Command
0E Message length
01 The number of Fast Operate reset codes supported
00 Reserved for future use