463
019 STACKER FAULT
CHECK STACKER
Message on operator panel
LCD.
1. The stacker elevator may be
obstructed. The message will
always occur if the user presses
the ELEVATOR UP key on the
stacker operator panel to move
the elevator and the elevator is
blocked so that it cannot move to
the top of its travel.
2. Controller hardware tells firmware
that an over-current condition
exists. This will only occur if the
controller board or the stacker
motors are bad.
page 51
Stacker “chatters” at upper or
lower limit
Reported by customer. Various causes possible. page 189
Stacker does not stack properly Reported by customer. Various causes possible. page 190
Stacker elevator does not
move
Reported by customer. Various causes possible. page 190
Stacker elevator moves by
itself
Reported by customer. Various causes possible. page 190
Stacker limit switch check Other troubleshooting
procedures.
This procedure tests the motion limit
switch at the top and bottom of the
right vertical rail. You will usually be
referred to this procedure from other
troubleshooting procedures. When
you have completed this procedure,
return to the procedure that sent you
there.
page 191
Table 7. Power Stacker Problems
Symptom Origin of Symptom Explanation Solution
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