ABB CM30 User Manual page 48

ControlMaster CM30 and CM50
Universal process controllers,
...Control /...Loop 1 (2) Output / ...Slew Rate
Rate
Disable Source
Tracking
Source
Signal Source
Mode
In Auto
Auto + OP
When Enabled
When Enabled + OP
Enable Source
Loop 1 (2) Split O/P*

Min / Max

Input 1 (2)

Min / Max
OP 1 (2)
Loop 1 (2) Valve
Loop 1 (2) Time Prop
*Applicable only if the output type selected is Split O/P – see page 24
46
1 1
/ and / DIN
4 2
The maximum rate of change of the control output (% / s).
The source required to disable slew rate control of the
output. This source is level-triggered.
Enables the control output to be configured to follow a tracking signal when in Auto control
mode. When in Manual control mode the output can be adjusted by the user as normal. If
the slew rate function is enabled, switching from Manual to Auto is bumpless. If the value set
by the tracking signal is different to that set manually, the output ramps to its expected auto
value at the speed set in the slew rate.
If the Signal Source is set to None tracking is disabled and the normal PID output is provided
as the control output.
Sets the source of the signal required to be tracked by the output in Auto control mode. If
set to None, output tracking is disabled.
Selects the type of output tracking.
Control output = tracking signal when in Auto control mode.
Control output = tracking signal + change in PID output, when in Auto control mode.
When enable source is active, Control output = tracking signal when in Auto control mode.
When enable source is active, Control output = tracking signal + change in PID output,
when in Auto control mode.
Sets the digital signal to enable output tracking.
. Applicable only if Mode is When Enabled or When Enabled + OP.
Note
This facility enables the PID control output
(see page 20) to be split into 2 separate
outputs. This enables heat / cool and
other applications requiring dual outputs
to be controlled. The linear relationship
between the input from the PID algorithm
and the 2 outputs is configured using the
Min/Max Input/Output
(below). 

When operating with Split O/P in Manual
control mode, manual adjustment is made
to the input at the split output block
(x axis). By default, the Operator page
displays both output values (OP1 and
OP2).
Co-ordinates set in % (see graph above).
See Basic level, page 18.
See Basic level, page 18.
Min. Input 1 = 20
Min. OP1 = 70
parameters
Min. Input 2 = 40
Min. OP2 = 10
7 Advanced Level
Disabled
Enabled
Enabled
Max. Input 2 = 90
Max. OP2 = 90
Output 2
Output 1
(OP2)
(OP1)
Max. Input 1=50 
Max. OP1 = 20
PID Output (%)
(x)
IM/CM/ED–EN Rev. B