Safety
Electrical
Troubleshooting Guide
IRB6400 M94A
Page 1 - 11
1.7 Risks Associated with Live Parts
Controller
A danger of high voltage is associated with the following parts:
The mains supply/mains switch
The power unit
The power supply unit for the computer system (220 V AC)
The rectifier unit (240 V AC and 340 V DC. Especially
Capacitors!)
The drive unit (340 V DC)
The service outlets (110/220 VAC)
The power supply unit for tooling, 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
Manipulator
A danger of high voltage is associated with the manipulator in:
The power supply for the motors (up to 340 V DC)
The user connections for tooling or other parts of the
installation.
Tools, Material Handling Devices, etc.
Tooling, material handling devices, etc., may be live even if the
robot system is in the OFF position. Power cables which are in
motion during the working process may be damaged.
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