Operation; Safety Instructions; Parameterization Of The Device; Menu Navigation - ABB TZIDC Manual

32 TZIDC DIGITAL POSITIONER | CI/TZIDC/ATEX/IECEX-EN REV. C

7 Operation

Safety instructions

CAUTION
Risk of injury due to incorrect parameter values!
Incorrect parameter values can cause the valve to move
unexpectedly. This can lead to process failures and result in
injuries.
• Before recommissioning a positioner that was previously
in use at another location, always reset the device to its
factory settings.
• Never start automatic adjustment before restoring the
factory settings!
If there is a chance that safe operation is no longer possible,
take the device out of operation and secure it against
unintended startup.

Parameterization of the device

The LCD display features operating buttons which enable the
device to be operated with the housing cover open.

Menu navigation

1 Value display with unit
2 Symbol display
Figure 24: LCD display with operating buttons
3 Designator display
4 Operating buttons for menu
navigation
Value display with unit
This 7-segment display with four digits indicates parameter
values or parameter reference numbers. For values, the physical
unit (°C, %, mA) is also displayed.
Designator display
This 14-segment display with eight digits indicates the
designators of the parameters with their status, of the
parameter groups, and of the operating modes.
Description of symbols
Symbol Description
Operation or access is restricted.
Control loop is active.
The symbol is displayed when the positioner is in operating
mode 1.0 CTRL_ADP (adaptive control) or 1.1 CTRL_FIX (fixed
control) at operating level. On the configuration level there are
test functions for which the controller will be active as well. The
control loop symbol will also be displayed when these functions
are active.
Manual adjustment.
The symbol is displayed when the positioner is in operating
mode 1.2 MANUAL (manual adjustment within the stroke range)
or 1.3 MAN_SENS (manual adjustment within the measuring
range) at operating level. At configuration level, manual
adjustment is active when setting the valve range limits
(parameter group 6 MIN_VR (min. of valve range) and 6 MAX_VR
(max. of valve range)). The symbol will also be displayed when
these parameters are being set.
conf
The configuration icon indicates that the positioner is at the
configuration level. The control operation is inactive.
The four operating buttons ENTER, MODE,  and  are pressed
individually or in certain combinations according to the function
desired.