Maintenance 18. Controller Unit
VT Rev.1 231
18.1 Replacing Controller Unit
WARNING
â–
Make sure that orange colored
charge confirmation LED on the DPB turns off
ing the controller unit. If operating without tuning off the LED, electric
shock or other serious problems for safety may occur.
Controller Unit 1 2194603
Tools
Hexagonal wrench (width across flats: 3 mm) 1
For M4 hexagon socket head
For tightening torque control
Cross-point screwdriver (No. 2)
The brake is mounted on each joint to prevent the arm from lowering due to its own weight while the
controller power is OFF or the motor is OFF status. The brake does not work during replacement.
Be careful when performing maintenance work.