AEC VacTrac Series Conveying Systems - Manual (Page 86)

VacTrac™ Conveying Systems 12-Station Controllers Page 85
9 Troubleshooting
Problem Possible cause Solution
The controller panel is not
plugged in.
Plug in the controller panel.
The external disconnect
(recommended) in the
dedicated circuit is open (off).
Close the switch (on).
Fuse/circuit breaker in the
power drop is blown/tripped.
Replace/reset.
The controller panel doesn’t
light up at all.
Broken controller power
switch.
Replace.
The motor overload has
tripped.
Reset the overload and
check the motor for the
proper amp draw on tag.
Main fuse in power drop or
optional fused disconnect has
blown.
Replace the fuse.
A pump package doesn’t run,
even though it is on line and
its indicator is lit.
Motor contact is faulty.
Repair or replace as
required.
The bin below it is full if its
amber indicator light is off.
Normal operation. When the
level drops, material conveys
to the hopper.
The hopper is off line.
Using the controller, place
the hopper on line.
The convey time for the
hopper is set to zero. Using the controller, enter a
reasonable convey time.
The field-installed station
bypass switch is simulating a
Bin Full condition. Normal operation. Set the
switch so the hopper is back
in the loading sequence.
A vacuum hopper is being
bypassed in the loading
cycle.
The field-installed station
bypass switch is bad or mis-
wired.
Repair, replace, or rewire.
Conveying times are too long
(Time Fill mode only).
Time the hopper(s) during
loading, and set conveying
times to a few seconds less.
Vacuum hoppers are over-
filling. Maximum conveying times
are too long and the PCB
does not recognize the
Hopper Full proximity
switch(es).
Check proximity sensors for
proper operation and proper
wiring to the PCB. Repair as
needed. Reset the conveying
times to a reasonable value,
and adjust as needed.