Panasonic Electric Works Nordic AB
MEW01091
Rev: 3
EBL128 Operating Instructions V1.1.x
64
FAULT: Short-circuit, internal COM-loop
Short-circuit on the connection (ribbon cable) to or between the
expansion boards (458x) in the c.i.e. (EBL128).
FAULT: Short-circuit SCI
n
<-> SCI
n
SCI
n
<-> SCI
n
describes between which
S
hort
C
ircuit
I
solators (SCI:s) 4370 / 4313 the short-circuit is located.
n
= A, B, 0, 1, 2, 3, 4, 5, 6 or 7. A & B is the built-in isolator in the
EBL128 A-direction and B-direction respectively, i.e. if no SCI is
used the information will always be: SCI
A
<-> SCI
B
.
If one SCI (no. 0) is used, the information will be:
SCI
A
<-> SCI
0
or
SCI
0
<-> SCI
B
...and so on.
There will also be a "FAULT: No reply ….." message for each unit
that EBL128 cannotfind.
If there are several short-circuits on the loop the message shows the
last isolator before the break in the A-direction (incl. the following
isolator). There will also be shown "FAULT: Several faults …".
NOTE!
Each 10
th
minute a new attempt is made to communicate in
the A-direction only.
When all short-circuits are repaired (corrected) the communication
automatically returns to communicate in the A-direction only.
62
FAULT: Site specific data (SSD)
The Site Specific Data (SSD) is not downloaded correctly (a
checksum fault, etc.). A new SSD download (via Win128) is
required. If the fault cannotcorrected it is very serious. Call for
service personnel / engineer immediately.
FAULT: Site specific data (SSD), AAU x
AAU=1735 / 1736 (Alert Annunciation Unit)
There is no SSD (Site Specific Data) downloaded to the unit or
something is wrong in the downloaded SSD.
FAULT: Site specific data (SSD), EPU x
62
The fault has to be acknowledged and it can last up to 10 minutes before
the communication returns to communicate in the A-direction only.
