Causes for Defects/Remedy
The following table shows causes for defects during commissioning and potential remedial measures.
No
.
Signal/Error
Cause
Check
Remedy
1
The red Line Activation
LED does not light up.
Both CC-CO are in Secondary
Unit Mode.
Check the jumper position
for the main unit and secon-
dary unit.
Configure a main unit and a
secondary unit.
The line is interrupted.
Check the loop by bridging
the end of the line.
Replace the power line.
2
The red Line Activation
LED constantly lights up
The line is unsuitable (large
length, large attenuation,
small core cross section).
Check the length, cross-
section, and attenuation.
Replace the line.
Both CC-CO are in Main Unit
Mode.
Check the jumper position
for the main unit and secon-
dary unit.
Configure a main unit and a
secondary unit.
3
The yellow Line Trans-
parent LED does not
light up
No connection could be
established.
See no. 1 and 2
See no. 1 and 2
4
Yellow Data Transfer
LED is not flashing
The protection device does
not have a valid payload.
Bridge the fiber-optic inter-
face with a fiber-optic cable.
Send the CC-CO to Siemens.
Activate the Test mode with
the protection device
connected.
Replace the fiber-optic cable
or the protection device is
faulty.
5
The Line Activation,
Line Transparent, and
Data Transfer LEDs do
not light up
The LEDs are faulty.
Press the key, the LEDs must
light up.
Send the CC-CO to Siemens.
6
The Life Contact relay
does not pick up
The relay is faulty.
Press the key, the relay must
pick up.
Check the line cable or the
protection device is faulty.
5.2
Maintenance and Troubleshooting
5.2 Causes for Defects/Remedy
Accessories, Communication Converter - Copper/Synchronous Interface, Manual
33
C53000-B1174-C190-1, Edition 01.2022
