Signallings - ABB SACE Emax 2 Installation, Operation And Maintenance Instructions

Signallings

The following table illustrates the possible signals, and their meaning:
C B
A
B
A
C
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Pos. Description
Power LED, green. The possible states are:
• Off: power supply absent.
• On fixed: power supply and communication with the release present (with a release with the
Alive LED option disabled).
• On, with one flash per second (synchronized with that of the green LED on the release):
power supply and communication with release present (with a release with the Alive LED option
enabled).
• On, with two quick flashes per second (not synchronized with those of the green LED on the
release): power supply present, and communication with release absent (for example: because
Local Bus disabled).
Link LED, green. The possible states are:
• Off: connection error (signal absent).
• On fixed: correct connection.
Activity LED, yellow. The possible states are:
• Off: no activity on the line.
• 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 | 2 - Ekip Link module