Ytc YT-3300 Series, Руководство по эксплуатации продукта

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YT-3300/3301 series
7. Error and Warning Code
7.1 Error code
Error Code Code Description and Cause Action
MT ERR L

Positioner is improperly installed.
 Positioner is not parallel to the
ground at 50% point. Lever is at
lower position than actual 50% point.

Re-install the positioner.
 Ensure the feedback lever does
not touch the lever stopper at 0%
and 100%.
MT ERR H
 Positioner is improperly installed.
 Positioner is not parallel to the
ground at 50% point. Lever is at
higher position than actual 50%
point.
 Re-install the positioner.
 Ensure the feedback leer does
not touch the lever stopper at 0%
and 100%.
CHK AIR
 Valve does not operate when
positioner receive “Full Open” signal
during the auto calibration.  Check supply pressure level.
RNG ERR
 Operating angle is too small due to
improper positioner installation.
 Adjust bracket so the positioner
can be mounted closer to
actuator.
C
Error of 10% or more persists more than 1
minute.
 No valve movement.
 High level of valve friction
 Changes in setting pressure of actuator.
 Perform BIAS calibration.
 Check setting pressure of actuator.
D
I-value reaches at maximum or minimum
limit.
 Changes in valve friction.
 Changes in setting pressure of actuator.
 Perform auto calibration.
 Check setting pressure of actuator.
7.2 Warning code
Warning
Code
Description Action
B
 Pv Span – Pv Zero range is below 500.
 The angle of feedback lever is too small.
 Re-install the positioner.
 Ensure the feedback lever does not
touch the lever stopper at 0% and
100%.
 After re-installation, perform AUTO1.
F
 Full open/close elapsed time is less
than 1 second.
 Actuator size is too small.
 Use variable orifice.
 Use larger actuator.