Local Hmi; Inputs And Outputs; Communication; Application Warning - ABB REJ601 Product Manual

Feeder protection and control / Feeder protection
REF601 / REJ601
Product version: 2.2FP2
for the operator, engineer and administrator
level. There is availability of 2 different password
protection, one which is a combination of
different navigation keys which is default one
and other with Alpha-numeric password. User
can select either of password depending on their
requirement.

13. Local HMI

Local HMI of relay contains LCD display, LED
indicators and navigation keys. The
measurement, recorded data, events, setting
can be viewed in display. The relay has six LED
indications on LHMI which are configured for
ready / IRF, protection start, protection trip,
phase fault trip, earth fault trip and trip circuit
fault indications. Display supports built in multiple
languages.

14. Inputs and outputs

The relay is equipped with four phase current
inputs, three for phase current and one for earth
current measurement. The phase-current inputs
and the earth current inputs are rated 1/5 A, that
is, the inputs allow connection of either 1A or 5A
secondary current transformers
The relay has four binary inputs. The binary
inputs can be configured for various functions
like Blocking, Protection reset, Breaker position,
Breaker control and trip circuit supervision. In
turn these signals can be mapped at binary
output and LEDs for indications. Individual input
can be configured either as "Inverted" or "Non
Inverted".
Table 4. Input/output overview
Relay type
REJ601 CT variant
REF601 CT variant
7
The relay has six output contacts, two power
outputs and four signalling outputs. The output
contacts can be configured for different functions
like routing of Protection start / trip signals,
External trip /open, external close command, trip
circuit supervision status etc. One dedicated
output contact is available for Unit ready / IRF
status indication.
All binary input and output contacts are pre-con-
figured according to default configuration,
however can be easily reconfigured by using the
LHMI menu.

15. Communication

The relay is available with optional communica-
tion feature with Modbus RTU protocol on
RS-485 bus with two wire connection. This
allows relay to connect to control and monitoring
system through serial communication for remote
monitoring.

16. Application warning

In case the relay REF601 is supplied with UPS
step-wave or square-wave, an interposing
transformer is needed to keep the supply voltage
(peak voltage) below the upper limit of the relay.
These are the recommended transformer
characteristics:
 Nominal Power: 20 VA
 Secondary voltage: in the range 30...150 V
AC
Analog input Binary inputs
CT BI
4 4
4 4
1MDB07221-YN
Issued: 2017-05-09
Revision: A
Binary outputs
BO
6
6
ABB