Menu Levels; Operating Modes; Operating Mode 1.0: Control With Adaptation; Operating Mode 1.1: Control Without Adaptation - ABB TZIDC Manual

TZIDC, TZIDC-200 DIGITAL POSITIONER | COI/TZIDC/TZIDC-200-EN REV. B

Menu levels

The positioner has two operating levels.
Operating level
On the operating level the positioner operates in one of four
possible operating modes (two for automatic control and
two for manual mode). Parameters cannot be changed or
saved on this level.
Configuration level
On this level most of the parameters of the positioner can be
changed locally. The PC is required to change the limit values
for the movement counter, the travel counter, and the user-
defined characteristic curve.
On the configuration level the active operating mode is
deactivated. The I/P module is in neutral position. The
control operation is inactive.
NOTICE
Property damage
During external configuration via a PC, the positioner no
longer responds to the set point current. This may lead to
process failures.
• Before any external parameterization, always move the
actuator to the safety position and activate manual
adjustment.

Operating modes

Operating mode 1.0: Control with adaptation

Controlling operation with automatic adaptation of the control
parameters
When the positioner is operating in 'Adaptive Mode',
P1.0 CTRL_ADP automatic optimization of the control
parameters to the operating conditions is performed in small
steps. This is especially helpful if valves and fittings could not be
operated with reference conditions while the Auto Adjust
function was in progress.
Since automatic optimization in "Adaptive Mode" is subject to a
variety of influences during operation and mismatches can occur
over a longer period of time, we recommend that you only
activate this operating mode for several hours and then select
the P1.1 CTRL_FIX operating mode.
The valve position is displayed in % of the operating range
(range 0 to 100%).

Operating mode 1.1: Control without adaptation

Controlling operation with fixed parameters
This is the normal recommended operating mode.
In contrast to the operating mode P1.0 CTRL_ADP, the control
parameters are not automatically adjusted.
The valve position is displayed in % of the operating range
(range 0 to 100%).
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