Table 51: Default connections for binary inputs
Binary input Description
X110-BI1 Busbar VT secondary MCB open
X110-BI2 Line VT secondary MCB open
X110-BI3 Circuit breaker low gas pressure indication
X110-BI4 Circuit breaker spring charged indication
X110-BI5 Circuit breaker truck in (service position) indication
X110-BI6 Circuit breaker truck out (test position) indication
X110-BI7 Earthing switch closed indication
X110-BI8 Earthing switch open indication
X120-BI1 Blocking of overcurrent instantaneous stage
X120-BI2 Circuit breaker closed indication
X120-BI3 Circuit breaker open indication
X120-BI4 Lock-out reset
Table 52: Default connections for binary outputs
Binary output Description
X100-PO1 Close circuit breaker
X100-PO2 Breaker failure backup trip to upstream breaker
X100-SO1 General start indication
X100-SO2 General operate indication
X100-PO3 Open circuit breaker/trip coil 1
X100-PO4 Open circuit breaker/trip coil 2
X110-SO1 Upstream overcurrent blocking
X110-SO2 Overcurrent operate alarm
X110-SO3 Earth-fault operate alarm
X110-SO4 Voltage protection operate alarm
X110-HSO1 Arc protection instance 1 operate activated
X110-HSO2 Arc protection instance 2 operate activated
X110-HSO3 Arc protection instance 3 operate activated
Table 53: Default connections for LEDs
LED
Description
1 Overcurrent protection operate
2 Earth-fault protection operate
3 Combined protection operated indication
4 Synchronism or energizing check OK
5 Thermal overload alarm
6 Circuit breaker failure protection backup protection operated
Table continues on next page
Section 3 1MRS756378 S
REF615 standard configurations
258 REF615
Application Manual
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