Orton AutoFire Plus User Manual page 24

AutoFire® Kiln Controller
FAIL - Open Thermocouple
The Open Thermocouple Alarm is activated when an open thermocouple is detected. When this condition is
detected during an active firing cycle, the controller aborts the firing cycle and indicates "FAIL" on the display.
The controller is not capable of starting a firing cycle if an open thermocouple condition exists.
- - - -
-Open Thermocouple
The Open Thermocouple Alarm ( four dashes) is activated when an open thermocouple is detected during initial
power-on of controller, or in Idle mode. The controller is not capable of starting a firing cycle if an open
thermocouple condition exists.
tC0, tC1 - Open Thermocouple (UniTemp™ Models Only)
The Open Thermocouple Alarm is activated when an open thermocouple is detected. When this condition is
detected during an active firing cycle, the controller continues the firing cycle and indicates "tC#" on the display
to indicate the failed thermocouple. The Open Thermocouple Alarm applies to both preset cone programs and
user programs. A UniTemp™ controller can operate on one thermocouple during an active firing.
Electronic Hardware Alarms
The Electronic Hardware Alarms apply to both preset cone programs and user programs.
EtH - Electronics Temperature Threshold
The Electronics Temperature Threshold Alarm is activated when the electronics temperature is greater than or
equal to the factory specified electronics temperature threshold (85°C or 185°F). When this condition is
detected during an active firing cycle, the controller aborts the firing cycle and indicates "EtH" on the display
The controller is not capable of starting a firing cycle if an Electronics Temperature Threshold condition exists.
Verify that the ambient temperature at the controller is not higher than 85°C. If the controller is in a cool
location, most likely the electronics board is experiencing interference from the AC power lines or element wires.
LBAt - Low Battery
The Low Battery Alarm is activated only if a power loss occurred during the previous firing cycle and the
battery voltage is actually low. In this case, the controller aborts the (resumed) firing cycle and indicates
"LBAT" for low battery. The only time that the battery is used for the electronics is to determine whether or not
to resume a firing cycle that was in progress when a power loss occurred. Thus, as long as the controller is
performing firing cycles without power losses, then there is no indication as to the state of the battery. If a Low
Battery Alarm is activated, contact your factory technician, kiln manufacturer, or kiln service technician for
replacement.
Hardware Embedded Self Diagnostics Error
The electronics contain a series of self-diagnostic error alarms that are activated when the microcontroller fails
the self-diagnostics test performed during controller power-up or during actual controller operation. When an
error condition is detected, the microcontroller stores the error in memory and resets the microprocessor. Each
time the microprocessor is reset, it first checks if an error has been stored, and if so, alternately indicates PLoG
and the error number on the display.
User's Guide
– EtH, LBAt, PLoG
- PLOG, 0000-0018, and 0128-0255
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