GE FVP110 Maintenance Manual page 196

GE Energy
Problem
Valve responses are too
slow.
Table 57 Troubleshooting Valve Control (Continued)
Presumed Cause
If only the responses that
require air suction are slow, it
means that the regulator's
maximum capacity is large
enough.
The I/P module's nozzle has
become blocked from dirt
contained in the air supply or
the like.
The control relay's nozzle has
become blocked from dirt
contained in the air supply or
the like.
The control gain is insufficient. Write 4 or 3 to
There's air leak from the pipe
of output pressure, or
feedback lever is not correctly
attached.
The pressure balance
deviation is too large.
FVP 110 Fieldbus Valve Positioner Manual
Remedy
Replace the regulator.
Check whether or not error
114 or 122 occurs in
XD_ERROR in steady
states. If it does occur,
contact the nearest
service station or
representative office.
Check whether or not error
114 or 122 occurs in
XD_ERROR in steady
states.
AUTO_TUNE_EXEC to
redo auto tuning. Or,
increase the
SERVO_GAIN setting.
Check the piping and
attachment of the lever,
and write 4 or 3 to
AUTO_TUNE_EXEC to
redo autotuning.
Adjust the pressure
balance of control relay.
180
See Section
—
"XD_ERROR" on
page 129
"XD_ERROR" on
page 129
❑
"Carrying out
Tuning" on
page 61
❑
"Control
Parameters"
on page 132
❑
"Function
Block Parame-
ters" on
page 183
❑
"Manual Tun-
ing Guideline"
on page 253
❑ "Installing the
FVP110 on the
Actuator" on
page 35
❑
"Carrying out
Tuning" on
page 615.3
"Tuning the
Pressure Balance
of Control Relay"
on page 71