Leak_Sen - Leak Sensitivity; Exit - Back To Work Level; Parameter Group 8: Analog Output; Min_Rge - Current Range Min - ABB TZIDC Manual

32 TZIDC, TZIDC-200 DIGITAL POSITIONER | COI/TZIDC/TZIDC-200-EN REV. B
... 3 Configuration
... Parameter group 7: Controller
parameters
LEAK_SEN – Leak Sensitivity
Determination of a possible leakage between the output
positioner and the pneumatic actuator. If the valve position
moves out of the dead zone (dead band) in the same direction
seven times in succession within a defined time range, there is a
high probability of a leakage in the connecting lines between the
positioner and the pneumatic actuator. LEAK_SEN allows the
definition of the period of time within which the valve is allowed
to leave the deadband max. 7 times in a row before an alarm is
generated. A time period between 1 s and 7200 s can be selected.
EXIT – Back to work level
With this parameter you can leave the configuration level. The
positioner returns to the operating level. Here you can either
save data in the non-volatile memory or discard all previously
made changes (also the changes in other parameter groups).
To exit the configuration level (with or without saving), press
and hold the ENTER button, until the countdown has run from 3
to 0 and finished.
The active saving process is indicated by the message NV_SAVE.
After saving a plausibility check is executed.
If an error occurs during the check or while saving, the data
cannot be saved and an error message is displayed instead (see
Chapter Error codes on page 40).
Selection
NV_SAVE Saves settings in the non-volatile memory.
CANCEL Discards all changes made since the last permanent
save operation.

Parameter group 8: Analog output

(on the plug-in module for analog feedback)
MIN_RGE – Current range min.
Use this parameter to specify the lower current range limit for
the analog feedback. The current range corresponds to the
configured stroke range.
Note
The current range limits can be freely configured between
4 and 18.5 mA. However, the current range must not be smaller
than 10 % (1.6 mA).
MAX_RGE – Current range max.
Use this parameter to specify the upper current range limit for
the analog feedback.
Note
The current range limits can be freely configured between
4 and 20 mA. However, the current range must not be smaller
than 10 % (1.6 mA).
ACTION – Direction of action of the characteristic curve
Use this parameter to specify the characteristic curve for the
analog feedback.
increasing
Position 0 to 100 % = Signal 4 to 20 mA
decreasing
Position 0 to 100 % = Signal 20 to 4 mA