Chapter 5 Maintenance of Electrical Components
Document Version V1.0.1 (09-21-2022)
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Figure 5-19 QBUS fuse
Step 1
Refer to Section 4.3.2 to remove the side door from the robot.
Step 2
Find the QBUS module, use the straight screwdriver to turn
counterclockwise the fuse cover on the QBUS module, and take out the fuse.
Step 3
After installing a new fuse, tighten the cover and restore the robot
after replacement.
The burning of the QBUS fuse indicates that the main circuits of
the QBUS and the drive Cell may burn out.
Therefore, before replacing the fuse, check whether the 4 pins
of N-5, L-5, DC+ and DC- of the QBUS are shorted out, and
whether the DC+ and DC- pins of the drive Cell are shorted out
or have low resistance (the normal resistance measured by the
multimeter in power-off condition is in the MΩ range). In case of
QBUS fuse
