Parameter Group 10: Digital Input; Function - Digital Input Function Selection - ABB TZIDC Manual

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

Parameter group 10: Digital input

FUNCTION – Digital input function selection
For the digital input, one of the following protective functions
can be selected via local operation.
• No function (standard setting).
• Move to position 0 %.
• Move to position 100 %.
• Hold previous position.
• Block the configuration on-site.
• Block the configuration and operation on-site.
• Block all access (on-site or via PC).
The selected function is activated when the 24 V signal is no
longer connected to the digital output (< 10 V DC).
The safety functions POS_0 %, POS_100 % and POS_HOLD are
featured in the work level in both control operating modes P1.0
or P1.1. BIN_CTRL is shown in the display.
If a corresponding function is active, a corresponding value is
defined internally for the positioner. The actuator is then driven
into the end position or position specified under consideration
of the set point ramp, configured operating range, selected
behavior etc.
After the CNF_LOCK, OP_LOCK or ALL_LOCK lock is selected,
the key symbol appears on the display and indicates that the
block will be active during the next save.
After saving and without 24V at the digital input, the key is
permanently displayed.
Note
The lock CNF_LOCK, OP_LOCK or ALL_LOCK is displayed only if
the voltage is connected to the digital input.
CNF_LOCK
Local access to the configuration level is inhibited. However,
local operation on the operating level is possible. The
positioner can be configured externally (via LCI / modem and
PC).
If the operator tries to activate the configuration level locally,
the text CNF_LOCK
OP_LOCK Local operation and configuration is completely inhibited. If
any attempt is made to take on local operating steps, the
message OP_LOCK
Note
The positioner can be configured externally (via LCI / modem
and PC).
ALL_LOCK Local operation (operating level and configuration level) and
external configuration via LCI / modem and PC are inhibited.
If any attempt is made to take on local operating steps, the
message ALL_LOCK
will appear on the display for 5 seconds.
will be displayed for approx. 5 seconds.
will be displayed for approx. 5 seconds.