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Configuration
4/07 UDC2500 Universal Digital Controller Product Manual 39
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 4.18
through 4.21.
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 (Numeric Code 200) Function Prompts
Function Prompt
Lower Display
Selection or Range of Setting
Upper Display
English Numeri
c Code
English Numeric
Code
Parameter
Definition
SP RAMP
SP Program
must be
disabled for
SP Ramp
prompts to
appear
201
DIS
ENAB
0
1
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 SETPOINT RAMP—Disables the
setpoint ramp option.
ENABLE SETPOINT RAMP—Allows the
single setpoint ramp prompts to be shown.
TI MIN 202
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.