Signallings - ABB SACE Emax 2 Installation, Operation And Maintenance Instructions For The Installer And The User

Signallings

C
66 | © 2017 ABB | 1SDH000999R0002 - ECN000058721 - Rev. B
The following table illustrates the possible signals, and their meaning:
Pos. Description
Power LED, green. The possible states are:
B
• Off: power supply absent.
• On fixed: power supply and communication with the trip unit present (with a trip unit with the
Alive LED option disabled).
• On, with one flash per second (synchronized with that of the green LED on the trip unit):
A
power supply and communication with trip unit present (with a trip unit with the Alive LED
option enabled).
• On, with two quick flashes per second (not synchronized with those of the green LED on the
trip unit): power supply present, and communication with trip unit absent (for example: because
Local Bus disabled).
LED Link, green. The possible states are:
B • Off: connection error (signal absent).
• On fixed: correct connection.
A
LED Activity, yellow. The possible states are:
• Off: no activity on the line.
C
• On, fixed or flashing: activity present on the line (in reception and/or transmission).
When it is on, it may be fixed or flashing (communication is active in both cases).
ABB | SACE Emax 2
Electronic accessories | 4 - Ekip Link module