2
02
0-
11
186
Appendix
267
A device coupler "Out of
specification" alarm is
detected. Check Coupler
LEDs for the alarm cause.
Spur short circuit
Check spur of the missing
device
An ELS or a surge protec
-
tor sends an alarm. Device
coupler LED should blink
three times
Check device sending the
alarm and check any ELS
and surge protectors con
-
nected to it
ELS sends alarm. The
device coupler LED should
blink three times
Check ELS of the device
coupler with active alarms
The spurs of missing
devices or an empty spur
shows bad current
changes
Check cable connections
and devices at the affected
spur
The maximum power rating
of the device coupler is
exceeded
Reduce power consump
-
tion of devices connected
to the device coupler
An empty spur is short cir
-
cuited or shows bad cur
-
rent changes
Check empty spurs of the
corresponding device cou
-
pler
A diagnostic value exceeds
defined value. The device
coupler LED should blink
two times
Check the device coupler
manual for details
268
A device coupler "Mainte
-
nance required" alarm is
detected
A diagnostic value exceeds
defined value. The device
coupler LED should blink
one time
Check device coupler
manual for details
269
A device coupler "Out of
specification" alarm is
detected for one device
An ELS or a surge protec
-
tor sends an alarm. Device
coupler LED should blink
three times
Check device sending the
alarm and check any ELS
and surge protectors con
-
nected to it
A diagnostic value exceeds
defined value. The device
coupler LED should blink
two times
Check the device coupler
manual for details
270
A device coupler "Out of
specification" alarm is
detected and devices are
missing compared to com
-
missioning
Spur short circuit
Check spur of the missing
device
The spurs of missing
devices or an empty spur
shows bad current
changes
Check cable connections
and devices at the affected
spur
The maximum power rating
of the device coupler is
exceeded
Reduce power consump
-
tion of devices connected
to the device coupler
ID
Phenomenon
Cause(s)
Action(s)