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Maintenance 5. Four-axis Drive Unit
5.8 Regeneration Module (For RC520DU)
5.8.1 Layout and Function
LED No.
LED1
LED2
LED3
If a Regeneration module (for RC520DU) is installed, JP1 on the DPB (Drive Power
NOTE
Board) must be "open".
5.8.2 Replacing a Regeneration Module (For RC520DU)
■ Before performing any maintenance procedure, always make sure that the main
power of the Controller is turned OFF and that the high voltage charged area is
completely discharged. Performing any maintenance procedure while the main
power is ON or the high voltage charged area isn't discharged completely is
WARNING
extremely hazardous and may result in electric shock and/or cause serious
safety problems.
Replace the Regeneration module by following the steps described below.
(1) Shut down Windows, and turn OFF the Control Unit and four-axis Drive Unit.
(2) Disconnect all the cables from the back of the four-axis Drive Unit.
(3) Wait for about 1 minute until the high voltage is completely discharged.
(4) Make sure that LED # 9 (orange) on the DPB is OFF. The capacitors are not
(5) Remove the two mounting screws for the Regeneration module (for RC520DU).
164
LED2 (Red)
LED Color
Orange
Red
Green
Then, remove the Top Cover by removing the eight mounting screws.
completely discharged if this LED is ON. Wait until the LED goes OFF.
LED3 (Green)
LED1 (Orange)
This LED is ON when the system is in the regenerative
process.
(This process is to reduce the regenerated electricity by
using resistors when the motor is decelerating so that the
circuit can be protected.)
This LED is ON when the system is detecting
over-voltage.
This LED is ON when the motor power is ON.
(It may flicker while the Manipulator(s) is/are operating.)
Description
RC520 Rev.7
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