PREVENTIVE AND CORRECTIVE MAINTENANCE
PRODUCT
ACS6000
DOCUMENT KIND
User manual
DOCUMENT ID.
3BHS212794 E01
REV.
N
LANG.
en
PAGE
216/266
10.4. Maintenance tasks
The following sections describe the maintenance tasks and associated actions
that you can perform on the drive.
10.4.1. Safety
DANGER Hazardous voltages!
To avoid serious injury or death, read all instructions before performing
the maintenance tasks.
– Before you work on the drive, verify that:
• Main and auxiliary power supply to the drive are switched off,
locked out, and tagged out
• Drive is de-energized
• Grounding connections are in place
• Personal protective equipment is provided and used when
required
• Everyone involved is informed
– Before energizing the drive, verify that:
• All foreign objects are removed from the drive
• All internal and external covers are securely fastened and all doors
are closed, locked and / or secured (locking bar in locked
position)
• Release dials of safety switches are in locked position
– Before you remove a phase module from a cabinet:
• Connect the grounding equipment at the appropriate locations.
– When the motor is spinning, a HAZARDOUS VOLTAGE appears at the
output of the IOI switch in the RDC unit, even if the switch is open and
the drive is grounded.
• See the local safety procedures on how to isolate and ground
the equipment.
WARNING Hazardous DC voltage!
Depending on the type of auxiliary supply, the drive can be equipped with
buffer capacitors inside the control unit. During operation, the capacitor
voltage is 300 V (DC) over ground.
– Wait 5 minutes for the capacitors to discharge.
– Before touching a capacitor, verify that the capacitors
are discharged.
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