BECKHOFF EK1914 - Manual (Page 41)

Operation
EK1914 39
4.4.3 Possible causes of diagnostic messages
Diagnostics Possible cause Remedial actions
Diag 2 LED
800E:0E / 800E:0F
set to:
5.6 or greater than
100
If parameter Testing of outputs active is switched
on:
Faulty test pulses.
Cause: external supply or cross-circuit.
Eliminate cross-circuit or
external supply.
Faulty test pulses.
Cause: parallel routed cables with high capacitive
coupling and dynamized signals, possibly also in
common cables
Isolate lines and lay in
separate non-metallic
sheathed cable.
Create a distance
between the non-metallic
sheathed cables.
Cause: current exceeds the limit of 500 mA. Select actuator
accordingly.
Current < 500 mA
Irrespective of whether the parameter Testing of
outputs active is switched on:
The output voltage lies below the permissible
voltage range (24 V -15%/+20%).
A possible cause is a short-circuit at the output or
e.g. a voltage drop at the instant of switching.
Eliminate short-circuit.
Design power supply
accordingly.
Check supply lines for
voltage drop.
EMC faults Take suitable EMC
measures
Internal defect Exchange Bus Coupler
Diag 2 LED
800E:0E / 800E:0F
set to: 11
Voltage on the power contacts too low. Increase Bus Coupler
supply voltage and reset
error display by power-on
reset of the Bus Coupler
EMC faults Take suitable EMC
measures
Internal defect Exchange Bus Coupler