TZIDC, TZIDC-200
| COI/TZIDC/TZIDC-200-EN 27
3.11.11
LEAK_SEN – Leakage 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 de
fi
ned time range, there is
a high probability of a leakage in the connecting lines between
the positioner and the pneumatic actuator.
LEAK_SEN
enables you to de
fi
ne the time range within which the valve
may leave the dead band a maximum of seven times in
succession before an alarm is generated. You can choose a
time range of between 1 and 7200 seconds.
3.11.12
EXIT – Return to operating level
With this parameter you can leave the con
fi
guration level. The
positioner returns to the operating level. Here you can either
save data in the non-volatile me mory or discard all previously
made changes (also the changes in other parameter groups).
To leave the con
fi
guration level (with or without saving), press
and hold
ENTER
until the countdown from 3 to 0 is
fi
nished.
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 33).
Selection
NV_SAVE
Saves settings in the non-volatile memory.
CANCEL
Discards all changes made since the last
permanent save operation.
3.12
Parameter group 8: Analog output
(on the plug-in module for analog feedback)
3.12.1
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
con
fi
gured stroke range.
NOTE
The current range limits can be freely con
fi
gured between
4 … 18.5 mA. However, the current range must not be
smaller than 10 % (1.6 mA).
3.12.2
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 con
fi
gured between
4 … 20 mA. However, the current range must not be smaller
than 10 % (1.6 mA).
3.12.3
ACTION – Characteristic curve action
Use this parameter to specify th e characteristic curve for the
analog feedback.
Increasing
Position 0 ... 100 % = Signal 4 ... 20 mA
Decreasing
Position 0 ... 100 % = Signal 20 ... 4 mA
conf
mA
C
conf
conf
conf
mA
%
C
°
conf
mA
%
C
°
