Carbolite 3508 - Manual (Page 10)

Notes
10 MC19-1.20

For a Step segment Holdback delays continuation to the next segment until the step
target is reached.
The Holdback Type can be set as follows:

Low Applies to heating only

High Applies to cooling only

Band Applies to both heating and cooling

Off Holdback is off
To set the Holdback type press page
 twice, then press scroll  until the display shows
Holdback Type for each segment and press up
 or down  to set.
The default setting for Holdback is Off.
5.3 Wait Segments
Wait prevents the program proceeding to the next segment, in a similar way to Holdback,
until the selected ‘Wait-For’ parameter has been met. There are 5 ‘Wait For’ parameters.
The first 4 only work if there are configured inputs to the controller.
1 PrgIn1 Wait until Input 1 is true
2 PrgIn2 Wait until Input 2 is true
3 PrgIn 1&2 Wait until Inputs 1 AND 2 are true
4 PrgIn 1or2 Wait until Inputs 1 OR 2 is true
5 PVWaitIP Wait until the measured temperature reaches a threshold value before
continuing. It can operate in one of 4 ways:
5.1 ‘Abs Hi’ Wait until the measured temperature is greater than or equal to a
value
‘WaitVal’ set for that segment.
5.2 ’Abs Lo’ Wait until the measured temperature is less than or equal to a value
‘WaitVal’ set for that segment.
5.3
‘Dev Hi’
Wait until the measured temperature exceeds a fixed* threshold by
an
amount ‘WaitVal’ set for that segment.
5.4
‘Dev Lo’
Wait until the measured temperature drops below a fixed* threshold
by an amount ‘WaitVal’ set for that segment.
* The fixed threshold used by deviation parameters is set in the configuration level of the
programmer and if required should be requested when purchasing a furnace from Carbolite.
5.4 Program Cycling
The Cycles parameter sets the number of times the program will run.
The default setting is 1 cycle.
shows Prog Cycles, then press up to set a finite number of cycles up to 999. Or press
down to set cycling to continuous.
5.5 Creating a Program
From the home display, press page
 three times to get to the programming page, the
display will show “ProgEdit  1”.