Replacing Control Box Fuses; Reseating The Breakout Board; Replacing The Control Box - Bend-Tech DRAGON A400 Maintenance & Troubleshooting

Replacing Control Box Fuses

Symptom
No power to Control Box
1. The Main Power Fuse is a 10A, 120VAC fuse. Ensure any replacement fuses are 10A,
120VAC.
2. The Main Power Fuse is located in a slot just below the Main Power Cord. To access the
Main Power Fuse, remove the Main Power Cord from its socket and use a finger to slide
out the Main Power Fuse holder.
3. The power button fuse inside the Control Box is a 2A, 120VAC fuse. Ensure any
replacement fuses are 2A, 120VAC.
4. The power button fuse is located in a fuse holder in the bottom right hand side of the
Control Box. Twist the fuse holder to access the fuse. Remove the old fuse and insert the
new fuse.

Reseating the Breakout Board

Symptom
Axis is not responding, or is
responding incorrectly
The Breakout Board smoothstepper facilitates communication between the computer and
the motor drivers. Over time, it is possible for the Breakout Board to come unseated from the
motor drivers.
1. Using a large, flat blade screwdriver, open the Control Box by turning the latch
counterclockwise.
2. Locate the Breakout board in the upper left-hand corner of the Control Box.
3. Firmly push on the Breakout Board to seat it in the motor drivers

Replacing the Control Box

Symptom
Unknown failure within Control
Box
Control Box needs to be
updated
Bend-Tech Dragon A400
Cause
Blown fuse at power switch
Blown fuse inside Control Box
Cause
Breakout Board has come
unseated from motor drivers.
Cause
Wear, power spike,
contamination
Control Box components have
become obsolete, or Machine
has been updated.
Maintenance & Troubleshooting
Corrective Action
Replace fuse
Corrective Action
Reseat the Breakout Board.
Corrective Action
Replace the Control Box
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Control Box
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