BOFI XLT TS Series, Руководство по обслуживанию

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XLT TS Series Service Manual
19
Conveyor Control Trouble-Shooting
Symptom
Possible Case Solution
Conveyor motor
not running No Power Check fuses in and out of the conveyor
control.
Check power in and out of switch S3.
If display is blank, check for 120 VAC
between terminals L and N on the control.
Check for DC voltage coming out of the
conveyor control.
Conveyor motor
not running (or
running
intermittently) Worn brushes (or
defective brushes) Remove brushes from conveyor gear-motor
and inspect. New brushes are approx 3/4"
long. Springs are also approx 3/4" long.
Conveyor motor
not running Drive chain or
sprockets worn Inspect drive chain for looseness.
Check sprocket setscrews on gear-motor
shaft and 3/4" conveyor shaft.
Check sprockets for worn teeth.
Display is dim Display intensity
parameter is too
low Adjust parameter 11 to a higher value (range
is 0-31); see programming instructions.
Conveyor runs full
speed Loose pickup
assembly Check to see if the pickup assembly is
properly tightened to the gear-motor shaft.
Conveyor runs full
speed Loose pickup
wires Check to see if the wiring is properly
connected. The white wire is the signal, the
red wire is +5V, and the black wire is
common.
When power is
applied “LF-H” is
displayed Excessive
electrical noise or
improper ground Check to see if the oven is properly
connected to power and is properly
grounded. It is also possible that a nearby
appliance is on the same circuit and electrical
noise is present. Possible solutions are:
divide the circuit, employ line filters, re-route
the wiring, and use shielded power cable.