ABB Relion REM601 - Optional Function; Other Functions; Self-Supervision

Section 2 1MDU07212-YN Rev. D
REF601/REJ601/REM601 overview
10 REF601 / REJ601 / REM601
Application Manual
Table 1: Relay functions, continue
Test
Related products
REJ601/
REF601
REJ601/
REF601
REJ601/
REF601
REM601
REM601
Functionality
ANSI
IEC
B
C
D
B
C
Condition monitoring
Trip circuit supervision
TCM
TCS
●
●
●
●
●
Measurement
Three-phase current
measurement
3I
3I
●
●
●
●
●
Residual current measurement
In
Io
●
●
●
●
●
Negative phase sequence
current
I2
I2
-
-
●
●
●
Thermal level
ϑ
ϑ
-
●
●
●
●
Operation counter
-
-
●
●
●
●
●
Motor run time
-
-
-
-
-
●
●
Latest motor start up max.
current
-
-
-
-
-
●
●
Latest motor start up time
-
-
-
-
-
●
●
Time to next possible motor start
up
-
-
-
-
-
●
●
● = Included
2.3.2 Optional function
The relay supports two optional communication MODBUS RTU and IEC 60870-5-
103, on a two wire RS485 interface.
2.4 Other Functions
2.4.1 Self-Supervision
The IED is provided with an extensive self-supervision system which continuously
supervises the software and the electronics. It handles run-time fault situations and
informs the user about a fault via the LHMI.
At normal condition (no internal fault), the green Ready LED glow and the self-
supervision output contact is closed. When an internal fault is detected in the IED,
the green LED ceases to glow and the self-supervision contact opens. Also, all
other outputs are released.
Figure 1: Behavior of contact assigned for Unit ready / IRF
5
6
BO4
(IRF)
XK2:
5
6
BO4
(IRF)
XK2:
Normal condition
IRF condition or no
auxiliary power