TM 5-3895-374-24-2
Problem
Cause
Solution/Reference
Control push buttons fail
Output card failure
Output relay failure
Motor starts but stops
when start button
released
Control relay failed
Auxiliary contact failed
Control power fuse blown
Batcher gates not
operating
Batcher not selected
AUTO
Batcher open/close times
not set
Low air pressure
Burner controlled by logic
controller
Temperature too high in
baghouse
4-4-6. Blending Controller
WARNING
Dangerous voltages are present in some of the circuits. Extreme caution should
be used in making requested readings. Only qualified personnel should attempt
repair of equipment thought to be defective.
No Display on the Monitor
1.
Verify the connecting cable integrity.
2.
Check that the display power-on indicator is lit.
3.
If it is lit, replace the monitor.
4.
If still no display on the new monitor, replace the CRT card in the blending controller rack.
5.
If no audible beep when the power is turned on, measure the system logic DC voltage, +5 volt to Common on the
terminal strip to the right of the feed I/O strip on the blending controller. The measured voltage should be in the
range of 4.78
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