Honeywell UDC2500 Product Manual page 133

Contents
Ramp unit
Soak segments
Start segment
number
End segment number The end segment number designates the number of the last segment, it must
Recycle number
Guaranteed soak
PV Start
4/07
ATTENTION Entering "0" will imply an immediate step change in setpoint to
the next soak.
The ramp unit selection determines the engineering units for the ramp
segments.
The selections are:
• TIME = Hours:Minutes (XX:XX) Range: 0-99 hr.:0-59 min
• EU-H = Degrees/Hour OR
A soak segment is a combination of soak setpoint (value) and a soak duration
(time).
• Soaks are even number segments.
• Segment 2 will be the initial soak value and soak time.
• The soak setpoint range value must be within the setpoint high and low
range limits in engineering units.
• Soak time is the duration of the soak and is determined in:
TIME - Hours:Minutes
The start segment number designates the number of the first segment.
Range = 1 to 11
be a soak segment (even number). Range = 2 to 12
The recycle number allows the program to recycle a specified number of
times from beginning to end. Range = 0 to 99
All soak segments can have a deviation value of from 0 to ± 99 (specified by
SOK DEV) which guarantees the value for that segment.
Guaranteed soak deviation values >0 guarantee that the soak segment's
process variable is within the ± deviation for the configured soak time.
Whenever the ± deviation is exceeded, soak timing is frozen.
There are no guaranteed soaks whenever the deviation value is configured to
0, (that is, soak segments start timing soak duration as soon as the soak
setpoint is first reached, regardless of where the process variable remains
relative to the soak segment).
The soak deviation value is the number in engineering units, above or below
the setpoint, outside of which the timer halts. The range is 0 to ± 99.
The decimal location corresponds to input 1 decimal selection.
This function determines whether LSP1 or PV is used as the setpoint when
the program is initially changed from HOLD to RUN.
The selections are:
DISABL = When the program is initially changed from HOLD to RUN the
present LSP1 value is captured as the default setpoint. If the
program is terminated or the power cycled before the program has
completed, the LSP1 is used as the control setpoint. The
beginning segment uses this value as the initial ramp setpoint.
UDC2500 Universal Digital Controller Product Manual
Monitoring and Operating the Controller
Definition
EU-M = Degrees/Minute (Range – 0-999)
Range = 0-99 hr.:59 min.
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