Configurable Binary Inputs - ABB REF601 Applications Manual

Section 4
Protection and Control Function
4.6
18
By default all binary outputs are NO (Normally Open).
During non-availability of power, binary output configured as
Inverted will open and its status will be restored only after
availability of power.
All binary outputs except BO4 can be triggered by different protection and control
signals. It is possible to map same signal to trigger more than one binary output.
The signals available for triggering binary outputs are as follows:
Individual start of protection functions I>, I>>, I>>>, Io> and I>>>.
Individual trip of protection functions I>, I>>, I>>>, Io> and I>>>.
External trip (open) command available at binary input (configured for Breaker
command operation) as well command available from MODBUS or Front HMI
External close command available at binary input (configured for Breaker
command operation) as well command available from MODBUS or Front HMI
Apart from above signals, the UNIT READY status is fixed configured at BO4 and
cannot be changed. No other signals can be configured at BO4.

Configurable Binary Inputs

The IED has four binary inputs BI1 to BI4. Each binary input can be configured
individually and supports various features. Binary input BI1 is fixed for blocking
operation, whereas BI2 to BI4 are used for other than blocking operation. However
for binary input BI2 to BI4, user at a time can configure one operation per binary
input i.e., once any of the binary input BI2 to BI4 is configured for a particular
operation, it is not available for other operation.
1. Blocking: Binary input BI1 is dedicate for blocking protection and control
function. User depending on his need can configure this binary input to
block individual protection functions viz., I>, I>>, I>>>, Io> and I>>> as
well as to block breaker opening and closing command.
The function configured for blocking will remain in block state until BI1 is
active.
BI1 configured to block breaker opening and closing command
will block command received from local HMI or MODBUS or
binary input.
2. Circuit Breaker Status: Binary inputs BI2 to BI4 can be configured to
indicate the status of circuit breaker i.e. breaker open or breaker close or
breaker in maintenance. The available status information is sent to
MODBUS communication.
1MDU07212-YN Rev. A
REF601 / REJ601
Application Manual