Sepam series 20 Sepam series 40 - POWERLAB

Control and monitoring
Customization
Each Sepam has a logic scheme by default according to the type chosen (S20,
T20,...).
The default program logic links the data derived from the protection functions to the
signal lamps and output relays to fit the unit’s most frequently used application.
It may be adapted for specific operations using the SFT2841 software tool, which
offers the following customization functions:
b customization of the control matrix
b logical equation editor (for Sepam series 40 only)
b modification of message wording (for Sepam series 40 only).
MT11104
Control matrix
The control matrix as a simple way to assign the input data derived from:
b protection functions
b control and monitoring functions
b logic inputs
to the following output data:
b 9 signal lamps on the front panel of Sepam
b output relays
b triggering of disturbance recording.
SFT2841: control matrix.
MT11105
SFT2841: logical equation editor (series 40).
Logical equation editor
(Sepam series 40)
Sepam series 40 includes a logical equation editor which may be used to adapt the
standard control functions to suit various specific cases by programming the
additional functions required.
A logical equation editor groups logic input data derived from:
b protection functions
b logic inputs
using the Boolean operators AND, OR, XOR, NOT, and automation functions such
as time delays, bistables and time programming.
The result of an equation may then be:
b assigned to a logic output, a signal lamp, a message via the control matrix
b transmitted by the communication link, as a new remote indication
b utilized by the circuit breaker/contactor control function to trip, close or inhibit
closing of the breaking device
b used to inhibit or reset a protection function.
The entry of equations is assisted, and a syntax check is carried out systematically.
Alarm and operating messages
(Sepam series 40)
The wording of Sepam alarm and operating messages may be customized using the
SFT2841 software tool.
The new messages are added to the list of existing messages and may be assiged
via the control matrix.
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