Summary Table Of Led Signals - ABB SACE Emax E1.2 Operating Instructions For The Design Engineer

Summary table of LED signals

The following table summarises the signals available with the protection LEDs and the operations to be carried out in response to alarms or fault
conditions signalled.
Slow flashing
Type of Information
(0.5Hz)
Colour and LED All R G
Internal configuration
error
Trip coil disconnected or
trip command failed
Current sensors
x
disconnected
Rating Plug error
Protection delay
Temperature alarm
(1)
Pre-alarm L
Trip
(2)
Hardware Trip
(3)
Installation error
Parameter error
Circuit-breaker state not
defined or in error
Error on Local Bus
Maintenance alarm
Software incompatibility
Low battery
(during self-test)
(4)
(1)
The temperature alarm is signalled by lighting of the protection L and I red LEDs.
(2)
The last trip can also be displayed with trip unit off, by pressing the iTest key.
(3)
The Hardware Trip is signalled by lighting of the pre-alarm L yellow LED and the protection I red led.
(4)
Five flashes when self-test is started up
Key to LED colours
The above table lists the colors of the LEDs, to be interpreted as follows:
• R = red LED (alarm LED L, S, I, G).
• G = yellow LED (pre-alarm LED L).
NOTE: for further details refer to the table listing the components of the interface, available on page 18.
30 | © 2017 ABB | 1SDH001330R0002 - ECN000058721 Rev. A
Fast flashing (2 Hz)
All R+G All R R (single) G
x
x
x
x
x
On and fixed
All R+G All R R (single) G
x x
x
x
x
x
x
2 flashes 3 flashes 4 flashes
every 2 s every 3 s every 4 s HELP
All R G G G
X
x
x
x
x
x
x
Continued on the next page
Ekip Dip protection trip unit | 5 - List of alarms and signals
ABB | SACE Emax 2
A
B
B
B+E
C
C
C
C
B
E
D
B
F
F
G
H