Lenze ETCxxxxx - Manual (Page 62)

Troubleshooting and fault elimination
Error management
6
6.2
l
62 EDSTCXX EN 2.0
6.2 Error management
Problem Potential cause Remedy
LED 24 V at the power supply
unit does not illuminate 24 V power supply at the
power supply unit missing Check 24 V supply
Check fuse
Internal short circuit in the
module Check or replace module
LED 5 V at the power supply
unit does not illuminate Internal short circuit in the
module Check or replace module
Check fuse
CAN bus does not work
properly Switch position S1 wrong Check switch position S1
Problem Potential cause Remedy
CAN bus is not continued in
the module Internal short circuit in the
module Check or replace module
CAN bus does not work
properly Switch position S1 wrong Check switch position S1
Problem Potential cause Remedy
Module does not work ME bus contacts incorrect Check module
24 V power supply at the
power supply unit missing Check 24 V supply
Internal module fault Replace module
Live LED does not illuminate Internal 24 V short circuit, PTC
has triggered Remove short circuit, wait a
few seconds
Live LED is programmed
differently Check parameterisation
Live LED illuminates, no input
LED, in spite of signal Signal not present Check signal at module
24 V signal present, input LED
illuminates, but signal is
processed as 0 Input parameterised with
inverse logic Check parameterisation
Brief input signal is not
detected Debouncing active Check parameterisation
Problem Potential cause Remedy
Module does not work ME bus contacts incorrect Check module
24 V power supply at the
power supply unit missing Check 24 V supply
Internal module fault Replace module
Live LED does not illuminate Internal 24 V short circuit, fuse
has triggered Replace module
Live LED is programmed
differently Check parameterisation
Live LED illuminates, no
output LED in spite of signal Signal not present Check signal at module
24V voltage present, output is
0, output LED does not
illuminate, but signal is
present Input parameterised via CAN
bus as inverse logic Check parameterisation
ETCHN003
ETCHT000
ETCHI008/ETCHI016
ETCHU008/ETCHU016