Beckhoff EL2911 User Manual

Operation
EL2911 and EL2911-2200 49Version: 2.0.0
5.5 Diagnosis
5.5.1 Status LEDs
Fig.31: EL2911 status and diagnostics LEDs
LED Color Description
Input 1 green Status display for the respective input and output
LED lights up: Input/output is set
LED not lit: Input/output is not set
Input 2
Input 3
Input 4
Output 1
5.5.2 Diagnostic LEDs
Diagnostic LEDs
LED lit flashes off
Diag1
(green)
Environment variables,
operating voltage and internal
tests are in the valid range
• If Diag2 flashes, a logic
error code applies
- Environment variables,
operating voltage and internal
tests are outside the valid
range
• If Diag2 flashes, an
environment error code
applies
Diag2
(red)
Together with Diag3 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
Together with Diag 3 and 4:
Global Fault
1)
has occurred.
(see diag history of the
TwinSAFE components)
Diag3
(red)
Global fault or global shutdown
on µC1
1)
- No global fault or global
shutdown on µC1
1)
Diag4
(red)
Global fault or global shutdown
on µC2
1)
- No global fault or global
shutdown on µC2
1)
Diag Out
(red)
Module error in the output
module
- No error in the output module
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.

Beckhoff EL2911 Specifications

General

Brand	Beckhoff
Model	EL2911
Category	I/O Systems
Language	English