sepam 20 user manual - Schneider Electric

4
Control and monitoring
functions
4/12
DE80063
Switching of groups of settings
Description
There are 4 relays for the phase overcurrent and earth fault protection functions, split
into two groups of 2 relays, called group A and group B respectively.
The use of the protection relays is determined by parameter setting.
The switching of groups of settings function enables the group A or group B
protection functions to be activated:
b according to the status of logic input I13
v I13 = 0: activation of group A
v I13 = 1: activation of group B
b or via the communication link
v TC3: activation of group A
v TC4: activation of group B.
The use of the switching of groups of settings functions does not exclude the use of
the logic discrimination function.
Block diagram
Choice via input I13
Input I13
Choice via remote control
Group A (TC3)
Group B (TC4)
Choice via input I13
Input I13
Choice via remote control
Group B (TC4)
Group A (TC3)
TS/TC equivalence for each protocol
Modbus DNP3 IEC 60870-5-103 IEC 61850
TC Binary Output ASDU, FUN, INF LN.DO.DA
1
0
1
0
TC8 BO03 - RDRE1.RcdInh.ctlVal
TC9 BO04 - RDRE1.RcdInh.ctlVal
TC10 BO05 - RDRE1.RcdTrg.ctlVal
&
&
&
&
u 1
Group A
Group B
u 1
PCRED301005EN - 06/2008