ABB ControlIT 53MC5000 Instruction Manual page 166

Table 5-9. Controller Modules (CON0-3)
Title
Control Zone
Controller Span
Controller Lower Range
Setpoint Slew Rate
Output Slew Rate
Control Setpoint
Remote Setpoint
Definition
This parameter defines a gap or dead band on
either side of the setpoint. When the process
variable is within this gap, proportional and
integral output changes are suppressed. Note
that derivative changes are based on the PV
and are therefore not affected.
These two parameters set the upper and lower
values on the controller display. They permit
the control action to be defined over a range
independent of the process variable input
range. They also determine the speed at which
the setpoint changes when the up or down
arrow push buttons are pressed.
This parameter imposes a ramp limit on the
setpoint. When configured to a non-zero
value, the setpoint used in the PID algorithm is
allowed to change each scan time only by the
amount configured. The final value of the
setpoint is always displayed on the units
display.
This value is the maximum output change in
percent allowed for the PID algorithm. A zero
disables output slewing. This value has no
effect on the manual operation of the output.
The setpoint value that has setpoint slewing
applied and is used internally to calculate the
deviation for the PID function.
The value used to determine the setpoint when
Remote Status (RMT) is a 1 and Setpoint
Track Status (SPTS) is a 0 .
SP = [RSP x K1] + B1
Atom CON0 CON1 CON2 CON3
CZ C114 C150 C186
(0-3)
IR (0-3) C115 C151 C187
ILR (0-3) C116 C152 C188
T1 C117 C153 C189
(0-3)
T3 C118 C154 C190
(0-3)
TSP C119 C155 C191
(0-3)
RSP C120 C156 C192
(0-3)
8 of 9
Default
C222 0
C223 100
C224 0
C225 0
C226 0
C227 0
C228 0