3.0 3508 Controller
l
Current program number (P10 and P25 only)
l
Current segment number
l
Time remaining for that segment
Further presses of the scroll
key while a program is operating will reveal additional
information:
Status. This can be changed to 'Hold', 'Reset' or 'Run' by pressing up
or down
Program Setpoint (PSP)
Current Segment Type. 'Step' and 'Call' segments are instant, so are only flashed on
the screen, unless holdback is operating on that segment.
Target Setpoint
Segment Rate For 'Rate', 'Time' and 'Step' segments only
Cycles left
Program Time Left
3.8.11
Program Hold with Holdback
If a holdback value has been set and the program goes into a hold state, the green HLD
indicator will flash until the measured temperature catches up.
While in this condition, the program itself is put into hold by pressing the RUN/HLD
button, the 'HLD' indicator will stop flashing and remain on with the 'RUN' indicator.
When the program is started again by pressing the RUN/HLD button, the 'HLD' indicator
will flash again if the measured temperature has not caught up with the program.
Programming note: For P10 and P25 models, other programs can be created or
changed whilst the current program is operating.
3.8.12
Power Failure Recovery
If there is a power interruption to the controller during a program, when power is
restored the controller pauses the program, then ramps the temperature back up to the
current program setpoint (PSP) before continuing the program.
• Power failure during ramp segments: The ramp rate will be that of the current ramp
segment.
• Power failure during dwell segments: The ramp rate will be that of the previous ramp
segment. If a previous ramp segment does not exist, then the dwell will continue at the
current measured temperature.
• Power failure during time-to-target segments: The ramp rate will be that of the
current segment. The ramp rate is maintained, but the time remaining is recalculated.
If there is a power interruption while controlling to setpoint, when power is restored the
controller automatically calls for maximum power.
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Содержание CARBOLITE GERO 3508 Series
Страница 7: ...Caution Double Pole Neutral Fusing 7 1 0 Symbols and Warnings ...
Страница 37: ...Power Limit View 37 4 0 3508 Dual Loop Cascade ...
Страница 57: ...Element Connections Example 3 phase 57 8 0 Repairs and Replacements ...
Страница 63: ...Notes Service Record Engineer Name Date Record of Work ...