1 Safety
1.1.1 Warnings
The Danfoss harmonic filter AHF 005 and AHF 010 contain dangerous voltages when connected to mians voltages. Only a competent
electrician should carry out the electrical installation. Improper installation of the filter module or the connected frequency converter
may cause equipment failure, serious injury or death. Follow this manual with National Electrical Codes and local safety codes.
Operation of the harmonic filter is only allowed when the filters housing lid, door or cover is closed.!
1.1.2 Symbols used in this manual
This manual contains different symbols that require special attention. The symbols used are the following:
Warning of hazardous electrical voltage
Warning of a general danger
NB!
This note designates general, useful notes. If you observe it, handling of the filter module / drive system is made easier.
1.1.3 Operator's safety
After mains disconnections, the power terminals X1.1, X1.2, X1.3, X3.1, X3.2, X3.3, X4.1, X4.2 and X4.3 remain live for minimum 4
minutes.
The filter modules have to be installed in a way, that they fulfil their function and don’t expose persons to danger. They have to be
mounted correctly and used in accordance with their purpose.
1.1.4 Avoid filter module damage
1.
The filter modules are to be used only with Danfoss frequency converters. The usage with other electrical loads is not permitted and may damage
the devices.
2.
Do not use the drive system (frequency converter, motor load and filter module) if the equipment has been damaged.
3.
Modifications of the filter modules are not allowed.
AHF 005/010 Operating Instructions
1 Safety
MG.80.C1.02 - VLT
®
is a registered Danfoss trademark
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