Configuration
3.5 SP Ramp Set Up Group
Introduction
Set Point Ramp, Set Point Programs and Set Point Rates can be configured in this group.
A single Setpoint Ramp [SP RAMP] can be configured to occur between the current local
setpoint and a final local setpoint over a time interval of from 1 to 255 minutes.
A Set Point Rate [SPRATE] lets you configure a specific rate of change for any local
setpoint change.
A single Set Point Program [SP PROG] with up to 12 segments can be configured.
For more information on Set Point Rate, Ramp and Programming, see Sections 4.17
through 4.20.
You can start and stop the ramp/program using the
RUN/HOLD key.
PV Hot Start is a configurable feature and means that, at initialization, the setpoint is set
to the current PV value and the Ramp or Rate or Program then starts from this value.
Function Prompts
Table 3-5 SPRAMP Group Function Prompts
Function Prompt
Lower Display
Selections or
Range of Setting
Upper Display
Parameter
Definition
SP RAMP
SP Program must be
disabled for SP Ramp
prompts to appear
SINGLE SETPOINT RAMP—Make a selection to
enable or disable the setpoint ramp function. Make
sure you configure a ramp time and a final setpoint
value.
SP Programming must be disabled.
DISABLE
ENABLE
DISABLE SETPOINT RAMP—Disables the setpoint
ramp option.
ENABLE SETPOINT RAMP—Allows the single
setpoint ramp prompts to be shown.
TIME MIN
0 to 255 minutes
SETPOINT RAMP TIME—Enter the number of
minutes desired to reach the final setpoint. A ramp
time of “0” implies an immediate change of setpoint.
44 UDC3200 Universal Digital Controller Product Manual 12/04
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