3-6
Controls and Indicators
3.4
3.4.1
D
0
OPERATION
PROG
PROGRAMMING
3.4.2
AUTO
MANUAL
In Auto (Remote) control, the output signal bargraph displays a dull
control signal as O-l 00% or 100-O% (determined by the
configuration). The resolution in this mode is 5%. For actuators with
position feedback, the actuator position can be indicated on the
bargraph. In the example on the left, the indicated output signal is
60%.
In the Manual mode, the figure on the right indicates the manually
adjustable output signal with increased resolution to 0.5%. The
normal brightness bargraph (graduated in tens as indicated) shows
60% and the brighter bar (graduated on the left side of the scale in
units O-10) shows 3%. This combination represents a manually
adjusted output signal level of 63%.
Operating Modes
Operation/Programming
In the Operation mode, the front panel buttons perform their normal
functions for operation and setting of the setpoint and output signal
values.
In the Programming mode, the function buttons have alternative
functions for programming (and alteration of the controller type
during cascade control). The Programming mode should only be
used by configuration personnel.
The DPRSOO configuration settings (FCODE l-46)
can be altered during operation by the
Programming mode. Changes to FCODE’s higher
than 100 require the controller to be switched out
by setting it to Manual.
Auto/Manual
In Auto control, the PID control system is in operation. In Manual
control, the PID control system is switched out and the input signal
can be controlled directly from the controller’s increase/decrease
buttons. Normal operation is with the DPRSOO in the Auto mode.
Switching between Auto and Manual can be done by:
uM6.1:DPR900:9102 May 1991
To Next Page
Loading...
