IRMCS1071

Safety Precautions

In addition to the precautions listed throughout this manual, please read and understand the following

statements regarding hazards associated with development system.

ATTENTION: The ground potential of the IRMCS1071 system is biased to a

negative DC bus voltage potential. When measuring voltage waveform by

oscilloscope, the scope ground needs to be isolated. Failure to do so may result in

personal injury or death.

Darkened display LEDs is not an indication that capacitors have discharged to safe

voltage levels.

!

ATTENTION: IRMCS1071 system contains dc bus capacitors which take time to

discharge after removal of main supply. Before working on drive system, wait three

minutes for capacitors to discharge to safe voltage levels. Failure to do so may result

in personal injury or death.

Darkened display LEDs is not an indication that capacitors have discharged to safe

voltage levels.

ATTENTION: Only personnel familiar with the drive and associated machinery should

plan or implement the installation, start-up, and subsequent maintenance of the

system. Failure to comply may result in personal injury and/or equipment damage.

ATTENTION: The surface temperatures of the drive may become hot, which may

cause injury.

!

!

!

This document is the property of International Rectifier and may not be copied or distributed without expressed consent.

4