Beckhoff EL2904 User Manual

Operation
EL2904 43Version: 3.2.2
Flashing Code
In the case of such an error, the Diag 4 LED on the EL2904 displays flashing codes that describe the error in
more detail.
A flashing code consists of four sequences, which are interrupted in each case by a short break. After the
four sequences there is a long break, following which the flashing code is displayed again.
Count the individual sequences of the flashing code.
Note the flashing codes and return the terminal
Note the flashing code displayed and include this information with the terminal when you return it.
5.5.2 Diagnostic objects
CAUTION
Do not change CoE objects!
Do not make any modifications to the CoE objects in the TwinSAFE components! Any modifications (e.g.
using TwinCAT) of the CoE objects will permanently set the TwinSAFE components to the Fail-Stop state.
Index FA80
hex
: Internal temperature values
The CoE objects FA80
hex
indicate the current internal temperature values of the EL2904.
Index Name Meaning Flags Default
FA80:01 Temperature 1 Temperature measurement 1 (left board) RO 0
bin
FA80:02 Temperature 2 Temperature measurement 2 (left board) RO 0
bin
FA80:03 Temperature Outputs Temperature measurement (right board) RO 0
bin
Index 800E
hex
: Diagnostic objects
The CoE objects 800E
hex
display further diagnostic information.
Index Name Meaning Flags Default
800E:0 Diag The following sub-indices contain detailed diagnostic
information.
RO
800E:0C Error at
the output
Bit External supply or cross-circuit* RO
0 1
bin
: Output 1 0
bin
1 1
bin
: Output 2 0
bin
2 1
bin
: Output 3 0
bin
3 1
bin
: Output 4 0
bin
Bit Open load
or current below minimum value of 20mA
or current above maximum value of 500mA**
0
bin
4 1
bin
: Output 1
5 1
bin
: Output 2 0
bin
6 1
bin
: Output 3 0
bin
7 1
bin
: Output 4 0
bin
800E:0D Supply error Bit Field voltage (power contacts) outside the specification RO
0 1
bin
: Field voltage too high 0
bin
1 1
bin
: Field voltage too low 0
bin
800E:0E Temperature
error
Bit Terminal temperature outside the specification. RO
0 1
bin
: Overtemperature µC1 0
bin
1 1
bin
: Overtemperature µC2 0
bin
2 1
bin
: Overtemperature of the output board 0
bin

Beckhoff EL2904 Specifications

General

Brand	Beckhoff
Model	EL2904
Category	Touch terminals
Language	English