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

Signallings

B C
204 | © 2013 ABB | 1SDH001000R0002 - L7804
The following table illustrates the possible signals, and their meaning:
Pos. Description
Power status 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
A
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).
RX LED, green. The possible states are:
• Off: device off line (with red TX LED off)
LED on).
A B
• On fixed: device on line, and allocated on a master (operating condition).
• On flashing: device on line, but not allocated on a master (device ready for
communication).
TX LED, red. The possible states are:
• Off: no error.
C
• On fixed: device in bus off condition.
• On flashing: I/O connection (cyclic data) in timeout.
(1)
The device has not yet sent Duplicate ID sequence on line.
, or in error conditions (with red TX
(1)
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