sepam 20 user manual - Schneider Electric

4
Control and monitoring
functions
4/4
Assignment of logic
inputs / outputs
The use of the preset control and monitoring functions requires exclusive parameter
setting and particular wiring of the inputs according to their application and the type
of Sepam.
The advanced UMI or the SFT2841 software may be used to assign inputs and set
the control and monitoring function parameters.
Since an input may only be assigned to a single function, not all the functions are
available at the same time.
Example: if the logic discrimination function is used, the switching of groups of
settings function may not be used.
Table of input/output assignment by application
Functions
Logic inputs
S20 S23 T20 T23 M20 B21 - B22 Assignment
Open position b b b b b b I11
Closed position b b b b b b I12
Logic discrimination, receive blocking input
b b b b I13
Switching of groups of settings A/B
b b b b b
External reset
External tripping 4 (1)
b b b b b b
I14
b b b b b b
External tripping 1 (1)
b b b
External network synchronization
b b
(2) b
b
(2) b b
I21
b b b
External tripping 2 (1)
b b b
Motor re-acceleration
(3) b (3) b b I22
b
External tripping 3 (1)
Buchholz alarm (1) (Buchholz alarm message)
Rotor rotation detection
Thermistor tripping (1)
Inhibit earth fault protection
End of charging position
Thermostat alarm (1) (thermostat alarm message)
Thermistor alarm (1)
External tripping 5 and 50BF activation (1)
Inhibit remote control, excluding TC1 (1)
Inhibit remote control, including TC1 (1)
SF6-1
SF6-2
Change of thermal settings
Inhibit thermal overload
Inhibit recloser
b b
b
b b
b
b
b
b
b
b (1)
b
b
b
b
b
b (4)
b
b
b
b
b
b
b
b
b
b
b
b (4)
b
b
b
b
b
b (1)
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b I23
I24
b
I25
b
b
b I26
Logic outputs
Tripping b b b b b b O1
Inhibit closing b b b b b b O2
Watchdog b b b b b b O4
Close order b b b b b b O11
Note: all of the logic inputs are available via the communication link and are accessible in the SFT2841 control matrix for other non predefined applications.
(1) These inputs have parameter setting with the prefix "NEG" for undervoltage type operation.
(2) Buchholz/Gas trip message.
(3) Thermostat trip message.
(4) Pressure trip message.
PCRED301005EN - 06/2008