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TZIDC, TZIDC-200 DIGITAL POSITIONER | COI/TZIDC/TZIDC-200-EN REV. B
... 4 Diagnosis / error messages
Error handling
Positioner oscillates
The positioner oscillates in control
modes
1.0
and 1.1.
Press the button. Is the current value
stable?
Yes
Switch the positioner to operating mode
1.2
(manually) and set to a position of
approx. 50 % using the local push
buttons. Is the position stable?
Yes
Start Autostroke and save the values.
Switch the positioner to the operating
mode 1.1.
Is the position stable?
No
Switch the positioner to operating mode
1.0
(adaptive) for 4 to 5 hours to
optimize control behavior. Several
changes to the setpoint signal are
required.
Is the positioner function stable?
No
Increase the deadband (DEADBAND).
Is the valve function stable?
No
The friction of the valve is too great or
Slipstic effect. Check the valve.
Check power source or PLS.
No
Check the piping and actuator for
leakage. If leakage is detected, send the
No
positioner for repair.
Good job! The work activities are
completed.
Yes
Good job! The work activities are
Yes
completed.
Good job! The work activities are
Yes
completed.