Masoneilan SVI FF Instruction Manual
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© 2019 Baker Hughes, a GE company, LLC. All rights reserved.
Troubleshooting Tuning
Table 27 lists items for tuning in addition to the Auto Tuning items in Table 26.
Table 27 Troubleshooting Tuning
Problem
Presumed Cause
Remedy
See Section
Position oscillation
Positioner gain (P) set high High
Position overshoots by more
than 20% of the step and oscil-
lates more than twice. Position
may be oscillating if the friction
is high and the integral part is
fast.
Decrease the Gain (P) &
(Padj)
by 50 unit increments
until
oscillation ceases.
“Transducer Block
Parameters” on
page 149
Position gain (P) low - slow.
Verify that the gain is at least
100 and the oscillation is a
smooth sine wave going up and
down.
1. Run Auto Tune.
2. If 1 does not work:
Increase gain.
Increase the integral
gain.
Use one of the
pre-defined presets.
Bias Out of Range alarm
active
Setpoint at 0% or 100%
while the
position if off by
more than 5%
1. Verify mounting and link-
age are correct.
2. Run Auto Tune.
3. Run Manual Tune.
N/A
Problem with I/P or relay
1. Disconnect the I/P and
ver-
ify that there's no output.
2. Set the calibrator to apply
1.5 mA maximum to the I/P
and verify that there's full
output. More than 1.5 mA
damages the I/P.
If both steps don’t work,
replace the I/P module.
Contact BHGE or channel
partner.
N/A
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