sepam 20 user manual - Schneider Electric

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DE51156
Control and monitoring
functions
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Description
Sepam performs the control and monitoring functions required for electrical network
operation.
Predefined functions
The main control and monitoring functions are predefined and fit the most frequent
cases of use. They are ready to use and are implemented by simple parameter
setting after the necessary logic inputs / outputs are assigned.
The predefined control and monitoring functions can be adapted for particular needs
by customization of the control matrix using the SFT2841 software.
Control matrix
The control matrix is a simple way to assign data from:
b protection functions
b predefined control and monitoring functions
b logic inputs
to the following output data:
b output relays
b 9 LEDs on the front panel of Sepam
b triggering of disturbance recording.
Operating principle
The processing of each control and monitoring function may be broken down into 3
phases:
b acquisition of input data:
v results of protection function processing
v external logic data, connected to the logic inputs of an optional MES114 input /
output module
v remote control orders (TC) received via the communication link
b actual processing of the control and monitoring function
b utilization of the processing results:
v activation of output relays to control an actuator
v information sent to the facility manager:
- by message and/or LED on the Sepam display and SFT2841 software
- by remote indication (TS) via the communication link.
Logic inputs and outputs
The number of Sepam inputs / outputs must be adapted to fit the control and
monitoring functions used.
The 4 outputs included in the Sepam series 20 base unit may be extended by adding
one MES114 modules with 10 logic inputs and 4 output relays.
After selecting the MES114 type required by an application, the logic inputs must be
assigned to functions.
PCRED301005EN - 06/2008