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Advanced Diagnostics
Appendix
ID
278
279
280
281
188
Phenomenon
"Out of specification" alarm
of a device coupler
detected. Check coupler
LEDs for the alarm cause
"Maintenance required"
alarm of a device coupler
detected
"Out of specification" alarm
of a device coupler
detected for one device
"Out of specification" alarm
of a device coupler
detected and devices are
missing compared to com-
missioning
Cause(s)
Spur short circuit
An ELS or a surge protec-
tor sends an alarm. Device
coupler LED should blink
three times
ELS sends alarm. The
device coupler LED should
blink three times
The spurs of missing
devices or an empty spur
shows bad current
changes
An empty spur is short cir-
cuited or shows bad cur-
rent changes
The maximum power rating
of the device coupler is
exceeded
A diagnostic value exceeds
defined value. The device
coupler LED should blink
two times
A diagnostic value exceeds
defined value. The device
coupler LED should blink
one time
An ELS or a surge protec-
tor sends an alarm. Device
coupler LED should blink
three times
A diagnostic value exceeds
defined value. The device
coupler LED should blink
two times
Spur short circuit
The spurs of missing
devices or an empty spur
shows bad current
changes
The maximum power rating
of the device coupler is
exceeded
Action(s)
Check spur of the missing
device
Check device sending the
alarm and check any ELS
and surge protectors con-
nected to it
Check ELS of the device
coupler with active alarms
Check cable connections
and devices at the affected
spur
Check empty spurs of the
corresponding device cou-
pler
Reduce power consump-
tion of devices connected
to the device coupler
Check the device coupler
manual for details
Check device coupler
manual for details
Check device sending the
alarm and check any ELS
and surge protectors con-
nected to it
Check the device coupler
manual for details
Check spur of the missing
device
Check cable connections
and devices at the affected
spur
Reduce power consump-
tion of devices connected
to the device coupler
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