Temperature Controller Problems
Problem
Temperature controller has no display.
Possible Cause and Corrective Action
Check the supply voltage (24 VAC) to the unit at terminals 11 and 12. If voltage is
present, replace the controller. If voltage is not present, check source of power (fuses,
transformers, wiring, etc.)
Problem
No output signal from temperature controller.
Possible Cause and Corrective Action
•
Check that the set point (bottom display) is higher than the process temperature
(top display).
•
Check the 0-5v input to the temperature controller at pins 9 & 10. If the 0-5v
signal is not present, confirm that the Raytek pyrometer is functioning.
•
Is the LCD display lit? If not, check that the Raytek input power (12 vdc) is
present, check that the power supply board is supplying 12 vdc (TB 4) – replace
the temperature controller, Raytek, or the power supply board.
Problem
Temperature controller output signal is present, but heater lamps do not come on.
Possible Cause and Corrective Action
Possible defective power controller firing circuit board and/or SCR. Check for a bad
firing circuit board or SCR by exchanging the firing circuit board with one from a
known good control. Does the problem follow the firing circuit board or does it stay
with the SCR – replace the defective component.
Summary of Contents for BGK AutoCure 6000-2216
Page 1: ...AutoCure 6000 2216 Overhead Heater Assembly and Operating Manual ...
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Page 41: ...A DETAIL J SCALE0 40 1 REMOVET1 11SBOLTAFTERINSTAI I ATION ...
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Page 47: ...AUTOCURE MODEL NUMBER AC6 2216 480 SP ...
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