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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 4.18 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
| Function Prompt | Selection or Range of Setting |
| Parameter | ||
| Lower Display | Upper Display |
| Definition | ||
| English | Numeri | English | Numeric |
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| c Code |
| Code |
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| SP RAMP | 201 | DIS | 0 |
| SINGLE SETPOINT |
| SP Program |
| ENAB | 1 |
| selection to enable or disable the setpoint |
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| ramp function. Make sure you configure a | |
| must be |
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| ramp time and a final setpoint value. | |
| disabled for |
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| SP Ramp |
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| SP Programming must be disabled. |
| prompts to |
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| DISABLE SETPOINT |
| appear |
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| setpoint ramp option. |
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| ENABLE SETPOINT |
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| single setpoint ramp prompts to be shown. |
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| TI MIN | 202 | 0 to 255 minutes |
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| SETPOINT RAMP |
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| of minutes desired to reach the final setpoint. |
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| A ramp time of “0” implies an immediate |
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| change of setpoint. |
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4/07 | UDC2500 Universal Digital Controller Product Manual | 39 |