Eaton ARCON 2.0 Series, Operation And Configuration Instructions. Technical Description

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Wiring the trip circuits of the circuit breakers
Connect the circuit breaker’s trip circuits to the following terminals (a maximum of four sepa-
rate trip outputs in two separate groups):
TRIP1: X1-7, X1-8 (fast, group 1)
TRIP2: X1-9, X1-10 (fast/CBFP, group 1)
TRIP3: X1-11, X1-12 (fast, group 2)
TRIP4: X1-13, X1-14 (fast/CBFP, group 2)
In the event of an arc fault, the output contact will close at 7 ms when three-phase current
measurement is used.
If CBFP is used, the trip relays 2 and 4 will operate after a pre-set delay time of 100 or 150
ms if the preconditions for the arc fault still exist.
Wiring alarm circuits
Alarm signals generated by the arc protection system (trip and self-supervision alarms) can
be forwarded to higher-level switchgear supervision and control systems through the output
contacts.
Self-supervision alarms
The self-supervision system issues a self-supervision alarm when it detects a fault in a ma-
ster unit function or an incorrect number of sensors.
Connect the self-supervision alarm output to an SF change-over contact, either terminals X1-
17, X1-18 (normally closed) or X1-19, X1-20 (normally open).
During normal system operation (no internal fault) and with the auxiliary power supply con-
nected, the terminal X1-17, X1-18 is closed and X1-19, X1-20 is open.
Trip alarms
A trip alarm is generated when the arc fault system trips.
Connect the trip alarm output to the closing terminals X1-15, X1-16.
Connecting protective earthing
Connect the arc protection system to the earth using the PE terminal in the back plate.
Wiring the auxiliary supply
Connect the auxiliary supply voltage to the Us input, terminals X3-17, X3-18.
NOTE! If possible, the auxiliary supply should be taken from a power source that is not interrupted
during arc protection system operation.
CAUTION! Keep the auxiliary supply disconnected during mounting