Technical Specifications

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52 6 3 PST_FAILED 1 Yes Yes Yes PST
Failed
PST could not
complete suc-
cessfully
because of:
1- Problem
venting
2- PST pres-
sure value
was reached
before target
travel
3- PST Time
value was
reached
before target
travel
4- An ESD
event hap-
pened during
PST.
1- Verify that
vent is not
clogged up.
Verify that
there are no
Pneumatic
Train Integrity
Alarm present.
2- Confirm
that PST pres-
sure setting is
not too high.
Run an
extended sig-
nature to con-
firm proper
PST Pressure
for desired
travel target.
3- Verify that
vent is not
partially
clogged or
that an acces-
sory is not
restricting air
exhaust.
Increase set-
ting based on
PST Travel
Rate and PST
travel.
4- None
Table 8 SVI II ESD Fault Matrix (Continued)
Seque
nce
Byte
#
Bit
#
FAULT Name Critical-
ity Of
Alarm
Auto-
mati-
cally
cleared
Can be
cleare
d
Per-
sists
across
resets
TEXT
For DD
&
Val-
Vue
ESD2
English
Probable
Cause
English
Recom-
mended
Action