Beckhoff TwinSAFE EJ Series, Operation Manual

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General operation / function
EJ19xx and EJ29xx 21 Version: 1.2.0
5.9 Diagnostic LEDs
The diagnostic LEDs of the TwinSAFE EJ modules are labeled DIAG1 to DIAG4.
5.9.1 Flashing codes
LED lit flashes flickers off
DIAG1
(green) Environment variables,
operating voltage and
internal tests are in the valid
range
• If DIAG2 flashes, a
logic error code
applies
- Environment variables,
operating voltage and internal
tests are outside the valid
range
• If DIAG2 flashes, an
environment error code
applies
DIAG2
(red) Together with DIAG3 and 4:
Global shutdown
1)
has
occurred (see diag history of
the TwinSAFE components).
Logic or environment
error code according
to Diag1 and tables
below is output Error of the
safe input or
output
module Together with DIAG3 and 4:
Global fault
1)
has occurred (see
diag history of the TwinSAFE
components).
DIAG3
(red) Global fault or global
shutdown on µC1
1)
- No global fault or global
shutdown on µC1
1)
DIAG4
(red) Global fault or global
shutdown on µC2
1)
- No global fault or global
shutdown on µC2
1)
1. A global fault permanently disables the TwinSAFE component, so that it has to be replaced. A global
shutdown temporarily disables the TwinSAFE component. The error can be reset by switching off and
back on again.
Logic error codes of LED DIAG2 (if LED DIAG1 is lit)
Flashing Code Description
1 Function block error in one of the TwinSAFE groups
2 Communication error in one of the TwinSAFE groups
3 Error combination: Function block and communication
4 General error in one of the TwinSAFE groups
5 Error combination: General and function block
6 Error combination: General and communication
7 Error combination: General, function block and communication
Environment error codes of LED DIAG2 (if LED DIAG1 is off)
Flashing Code Description
1 Maximum supply voltage µC1 exceeded
2 Supply voltage µC1 below minimum value
3 Maximum supply voltage µC2 exceeded
4 Supply voltage µC2 below minimum value
5 Maximum internal temperature exceeded
6 Internal temperature below minimum value
7 Valid temperature difference between µC1 and µC2 exceeded
8 not used
9 not used
10 General error