Orton AutoFire Plus User Manual page 27

AutoFire® Kiln Controller
The flow diagram below shows how the software decides whether to restart kiln after a power interruption. If the firing
was near completion or the temperature fell too much during the outage, then the firing will terminate.
Controller
Automatically Stops
the Firing
Yes
Has Temperature
Dropped More
Than 255°F?
No
Power Interruption Recovery
ST ART
Is Elapsed Time of
Power Failure less
than 60 minutes?
Temperature
Before Power Failure
Within 100°F of Final
No
Temperature and Was Final
Segment Ramp Rate
108°F/hr (60°C/hr)?
Resume the Firing
Establish a New Set Point
from the Current Kiln Temperature
Is the Controller to
Resume a Ramp?
The Controller Resumes a Dwell,
The Ramp Dwell Time is not Advanced
During Recovery Ramp.
(see Entering a Ramp Rate)
Yes
Was
Yes
Yes
No
User's Guide
Controller
Automatically Stops
No
the Firing
Yes
Has Temperature
Dropped More
Yes
Than 100°F?
No
Controller
Automatically Resumes
Ramp Rate (see
Entering a Ramp Rate)
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