VAC TZIDC, Configuration And Parameterization Instruction

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28 COI/TZIDC/TZIDC-200-EN | TZIDC, TZIDC-200
3.12.4 ALARM – Alarm
When an alarm / message is generated in the positioner, it is
signaled via the digital and an alog outputs. You can use the
ALARM parameter to select a higher or lower alarm current for
analog feedback.
NOTE
Without electrical power or during initialization the output
signal is > 20.5 mA. A special version (hardware change) is
also available, with which a value of < 3.8 mA is also
possible.
HIGH_CUR Alarm current I > 20.5 mA
LOW_CUR Alarm current I < 3.8 mA
3.12.5 RB_CHAR – Count back characteristic curve
You can use this parameter to determine whether the position
indicator and the analog po sition feedback follow the
characteristic curve set in parameter
CHARACT -
Characteristic curve.
3.12.6 TEST – Test
Test is for simulation of the analog output. The test allows you
to simulate e
ff ects during commi ssioning without a ff ecting the
normal process.
NOTE
The test is automatically stopped after two minutes.
While the test is running, th e corresponding message (see
below)
fl ashes in the display.
NONE No function
FAILED Simulation of position feedback failure (CPU).
I > 20.5 mA (standard) or I < 3.8 mA (special version,
changed hardware)
ALRM_CUR Simulation of an alarm curr ent < 3.8 mA or I > 20.5 mA
CURRENT Output of the current setpoint as current value via
analog output. All con
fi gurations and settings of the
analog input and / or output must be taken into
consideration.
3.12.7 ALR_ENAB – Alarm via analog output
Enables the alarm signal to be switched on / o ff using the
optional analog output module.
Selection option:
ON / OFF .
3.12.8 CLIPPING – Extending the signal output range
Enables extension of the permissible signal output range to
3.8 … 20.5 mA.
Selection option:
— 4.0 … 20.0 mA
— 3.8 … 20.5 mA
3.12.9 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.
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