Fault Matrix; Svi Ii Esd Fault Matrix - GE Masoneilan SVI II ESD Installation And Maintenance Manual

Fault Matrix

Table 12 lists and describes faults detected by SVI II ESD. The table also provides information
to help determine the fault cause and corrective action.
Sequence Byte Bit
# #
0 0 RESET
1
0 1 LOW_
POWER
2
0 2 ACTUATOR
3
0 3 AIR_
SUPPLY_
4
LOW
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Table 12 SVI II ESD Fault Matrix
FAULT Name Criticality
of Alarm
3
3
2
2
Auto- Can be Non-
mati- cleared/ Mas-
cally Persists kable/
cleared across Annunci-
resets ated
No Yes/No No/No
Yes, No/No No/Yes
when
Input
current >
3.25 mA
Yes if the Yes/No No/Yes
condi-
tion is
resolved
Yes if the Yes/No No/Yes
condi-
tion is
resolved
Masoneilan SVI II ESD Installation and Maintenance Manual
TEXT For Probable Cause
DD & English
ValVue
ESD2
English
Reset Device reboot.
The power recov-
ered. Incoming
signal was below
2.9mA.
Low Device power is
Power below 3.2mA.
Actuator 1- Air supply is
Error insufficient.
2- Handwheel or
mechanical stop
present.
3- Valve stuck of
sticking exces-
sively.
4- Unbalance
forces on valve
trim exceeds
actuator capabil-
ity.
Air Sup- 1- Air supply is not
ply Low turned on or is set
below 10psig.
Recommended
Action
Reset the flag
using ValVue ESD
®
or HART Host.
Increase mA only
if calibration or
diagnostics are to
be performed.
1- Increase air
supply above
spring final value
+ 10 psig.
2- Verify if
mechanical stop
is present.
3- Perform valve
signature using
ValVue ESD.
4- If possible, per-
form valve signa-
ture under
process condi-
tions. Validate siz-
ing of actuator
against process
condition using
ValSpeQ.
1- Increase air
supply above
spring final value
+ 10 psig.
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