ABB IRB 8700 Series, Product Manual

Page: 30 / 848

1.3.6 Risks associated with live electric parts
Voltage related risks, general
Work on the electrical equipment of the robot must be performed by a qualified
electrician in accordance with electrical regulations.
Although troubleshooting may, on occasion, need to be carried out while the power
supply is turned on, the robot must be turned off (by setting the main switch to
OFF) when repairing faults, disconnecting electric leads, and disconnecting or
connecting units.
The main supply to the robot must be connected in such a way that it can be turned
off from outside the working space of the robot.
Make sure that no one else can turn on the power to the controller and robot while
you are working with the system. A good method is to always lock the main switch
on the controller cabinet with a safety lock.
The necessary protection for the electrical equipment and robot during installation,
commissioning, and maintenance is guaranteed if the valid regulations are followed.
Voltage related risks, IRC5 controller
A danger of high voltage is associated with, for example, the following parts:
• Be aware of stored electrical energy (DC link, Ultracapacitor bank unit) in
the controller.
• Units such as I/O modules, can be supplied with power from an external
source.
• The main supply/main switch
• The transformers
• The power unit
• The control power supply (230 VAC)
• The rectifier unit (262/400-480 VAC and 400/700 VDC. Note: capacitors!)
• The drive unit (400/700 VDC)
• The drive system power supply (230 VAC)
• The service outlets (115/230 VAC)
• The customer power supply (230 VAC)
• The power supply unit for additional tools, or special power supply units for
the machining process.
• The external voltage connected to the controller remains live even when the
robot is disconnected from the mains.
• Additional connections.
Voltage related risks, robot
A danger of low voltage is associated with the robot in:
• The power supply for the motors (up to 800 VDC).
• The user connections for tools or other parts of the installation (max. 230
VAC).
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30 Product manual - IRB 8700
3HAC052853-001 Revision: F
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1 Safety
1.3.6 Risks associated with live electric parts