Siemens 7XV5662-0AC01 Manual page 49

7XV5662-0AC01
Troubleshooting
The following table helps you to eliminate the possible causes of problems that may arise
during commissioning.
Table 3 Possible problems
No. Signal
1 Red LED
"Line
Activation" does
not shine
2 Red LED "Line
Activation"
shines
continuously
3 Yellow LED
"Line
Transparent"
does not shine
4 Yellow LED
"Data
Transfer" does
not flash
5 LEDs „Line Acti-
vation", „Line
Transparent"
and „Data Trans-
fer" don't shine
6 GOK relay could
not be activated
C53000-B1174-C165-4
Cause
Both CC–CO are in
slave mode
Line interrupted
Line not suitable (too
long, attenuation too
high, conductor
cross-section too
small)
Both CC–CO are in
master mode
No communication
link could be estab-
lished
No valid user data
from protection
device
LEDs defective
Relay defective
Check this
Check the jumper
positions for mas-
ter and slave
Check loop by
bridging one of
the line ends
Check length,
cross-section,
attenuation
Check the jumper
positions for mas-
ter and slave
See items 1 and 2 See items 1 and 2
Bridge the FO
interface using
the FO cable
Perform 'Test'
mode with protec-
tion device con-
nected
Push button,
LEDs must flash
Push button,
relay must be
activated
English
Remedy
Configure one
master and one
slave
Replace line if
necessary
Replace line if
necessary
Configure one
master and one
slave
Return CC–CO to
Siemens, if nec-
essary (contact
see last page)
FO cable must be
replaced, or pro-
tection device is
defective
Return CC–CO to
Siemens, if nec-
essary (contact
see last page)
FO cable must be
replaced, or pro-
tection device is
defective
49