Breaker Control And Trip Command Operation; Trip Circuit Supervision - ABB REF601 Applications Manual

Section 4
Protection and Control Function
4.14
4.15
36
4. Reset: Binary input BI2 to BI4 can be configured for reset operation. When the
rising edge is detected, the IED resets all the protection and control functions
(all internal timers are reset). It also resets the Start, Trip, Trip Ip, Trip Io and
de-latches the binary output.
5. Trip Circuit Supervision: Binary input BI2 is used to receive the invalidity of
trip circuit. No other binary input can be used for this purpose.
6. To the Binary input BI2 to BI4 also user defined signals could be configured,
called Signal 1 to Signal 3. This Signals can be routed / connected in the
binary output configuration menu directly to binary output contacts and
additional in the LED configuration menu to 5 LED's.
All binary inputs BI1 to BI4 also support Inverted (I) operation.
Table 23: Binary inputs
Binary input Default configuration
BI1 Default configured as UNBLOCK
BI2 Default configured as TCS
BI3 Default configured as external trip command to breaker
BI4 Default configured as reset command for resetting indications and contacts

Breaker control and Trip command operation

Relay supports breaker control operation. The control operation can be done from
control push-buttons provided on relay front, from remote via MODBUS
communication or from signals wired to relay binary inputs duly configured for
control operation.

Trip Circuit Supervision

Application
The Trip Circuit Supervision TCS detects faults in the electrical trip / open control
circuit (which includes trip coil, trip contact, wiring and auxiliary voltage) of
circuit. It can supervise trip circuit in breaker open as well as breaker close
condition.
It is possible to enable/disable TCS functionality through configuration parameter.
For the TCS functionality the BI2 need to be connected in parallel to the trip output
BO2 as shown in the figure below. Additional the BI2 need to be configured for the
TCS functionally.
1MDU07212-YN Rev. C
REF601 / REJ601
Application Manual