sepam 20 user manual - Schneider Electric

Control and monitoring
functions
PCRED301005EN - 06/2008
Circuit breaker / contactor control
ANSI code 94/69
Description
Sepam may be used to control breaking devices equipped with different types of
closing and tripping coils.
b circuit breaker with shunt trip or undervoltage tripping coil (parameter set on the
front of the advanced UMI or in SFT2841)
b latching contactor with shunt trip coil.
Two breaking device control modes are available:
b use of operating mechanism integrated in the circuit breaker / contactor
This logical function processes all the circuit breaker closing and tripping conditions
based on:
v breaking device status information
v remote control orders
v protection functions
v specific program logic for each application (e.g. recloser)
v etc.
This function also inhibits closing of the breaking device according to the operating
conditions.
b use of customized program logic
A control and monitoring resource assignment matrix may be used to create
customized program logic.
Operating mechanism integrated in the circuit breaker /
contactor
For operation in accordance with the block diagram, the Sepam must have the logic
inputs required (an MES114 module must therefore be included) and the related
parameter setting and wiring must be done.
Remote control
Circuit breaker/contactor tripping can be controlled remotely via the communication
link using the following remote control orders:
b TC1: Circuit breaker/contactor tripping
b TC2: Circuit breaker/contactor closing
b TC5: Sepam acknowledgment (reset)
These orders can be globally inhibited by logic input I25.
According to the parameter setting of logic input I25, the tripping remote control order
TC1 can be activated at any time or it can be inhibited.
TS/TC equivalence for each protocol
Modbus DNP3 IEC 60870-5-103 IEC 61850
TC Binary Output ASDU, FUN, INF LN.DO.DA
TC1 BO0 20, 21, 1 (OFF) CSWI1.POS.ctlVal
TC2 BO1 20, 21, 1 (ON) CSWI1.POS.ctlVal
TC5 BO2 20, 160, 19 LLN0.LEDRs.ctlVal
Circuit breaker / contactor control with lockout function
(ANSI 86)
The ANSI 86 function traditionally performed by lockout relays may be carried out by
Sepam using the predefined Circuit breaker / contactor control function, with latching
of all tripping conditions (protection function outputs and logic inputs).
With this function, Sepam performs the following:
b grouping of all tripping conditions and breaking device control
b latching of the tripping order with inhibition of closing until the cause of tripping
disappears and is acknowledged by the user (see "Latching / acknowledgment")
b indication of the cause of tripping:
v locally by signal lamps ("Trip" and others) and by messages on the display
v remotely by remote indications.
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