27
TROUBLESHOOTING (Continued) TRAVERSING
--POSSIBLE CAUSE-- --REMEDY-- --REASON----PROBLEM--
A--Wiring hookup to potentiom-
eter is improper. (If compo-
nents have been replaced.)
B--Defective speed control
potentiometer.
C--Main circuit board dial pot
settings not correct. (If board
has been replaced.)
Traverse speed
control goes at
one speed only.
Wrong wire hookup effects
traverse control. Reversing red
and orange wires to
potentiometer the DC motor will
run at zero speed but maximum
will be too slow. Reversing red
and white wires does not affect
speed control.
Traverse Drive Control
Pin #8 to 7
Pot Full CCW Pot Full CW
0 VDC 9.75 VDC
Pin #8 to 9
Pot Full CCW Pot Full CW
9.75 VDC 0 VDC
If Yes, pot is O.K.
If No, go to step below
Check for 10,000 ohms
red to white wires
Full CCW--10,000 ohms
Full CW--0 ohms
Red to black wires
Full CCW--0 ohms
Full CW--10,000 ohms
If Yes, pot is O.K.
If No, replace potentiometer
Minimum and maximum pot
settings effect traverse speed.
Check potentiometer wiring for
proper hookup. See that
speed pot is wired per electri-
cal diagram.
Check Potentiometer on
control panel.
Check Petentiometer for 10,000
ohms. Remove the following
three wires from Traverse Drive
Control:
red from term #8
white from term #7
black from term #9
Check all pot settings on circuit
board as shown in wiring
diagram. (See adjustment
section Traverse Motor Control
Board Settings.)
To Next Page
Loading...