Risks Associated With Live Electric Parts - ABB M2000 Product Manual

1 Safety

1.2.3.7. Risks associated with live electric parts

1.2.3.7. Risks associated with live electric parts
Voltage related risks, general
Voltage related risks, controller
A danger of high voltage is associated with the following parts:
Voltage related risks, robot
A danger of high voltage is associated with the robot in:
Voltage related risks, tools, material handling devices, etc
Tools, material handling devices, etc., may be live even if the robot system is in the OFF
position. Power supply cables which are in motion during the working process may be
damaged.
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• Although troubleshooting may, on occasion, have to be carried out while the power
supply is turned on, the robot must be turned off (by setting the mains switch to OFF)
when repairing faults, disconnecting electric leads and disconnecting or connecting
units.
• The mains supply to the robot must be connected in such a way that it can be turned
off outside the robot's working space.
• Be aware of stored electrical energy (DC link) in the controller.
• Units inside the controller, e.g. I/O modules, can be supplied with power from an
external source.
• The mains supply/mains switch
• The power unit
• The power supply unit for the computer system (230 VAC)
• The rectifier unit (400-480 VAC and 700 VDC. Note: Capacitors!)
• The drive unit (700 VDC)
• The service outlets (115/230 VAC)
• The power supply unit for tools, or special power supply units for the machining
process
• The external voltage connected to the control cabinet remains live even when the robot
is disconnected from the mains.
• Additional connections
• The power supply for the motors (up to 800 VDC)
• The user connections for tools or other parts of the installation (max. 230 VAC, see
Installation and Commissioning Manual)
3HAC023297-001 Revision: A