1. Safety
1.1.1. High Voltage Warning
The voltage of the frequency converter is dangerous whenever it is connected to
mains. Incorrect installation of the motor or frequency converter may cause damage
to the equipment, serious injury or death. Consequently, it is essential to comply
with the instructions in this manual as well as local and national rules and safety
regulations.
1.1.2. Safety Instructions
• Make sure the frequency converter is properly connected to earth.
• Do not remove mains connections, motor connections or other power connections while
the frequency converter is connected to power.
• Protect users against supply voltage.
• Protect the motor against overloading according to national and local regulations.
• The earth leakage current exceeds 3.5 mA.
• The [OFF] key is not a safety switch. It does not disconnect the frequency converter from
mains.
1.1.3. Approvals
1.1.4. General Warning
Warning:
Touching the electrical parts may be fatal - even after the equipment has been dis-
connected from mains.
Also make sure that other voltage inputs have been disconnected, (linkage of DC
intermediate circuit).
Be aware that there may be high voltage on the DC link even when the LEDs are
turned off.
Before touching any potentially live parts of the VLT Micro Drive, wait at least 4
minutes for all sizes.
Shorter time is allowed only if indicated on the nameplate for the specific unit.
VLT Micro Drive FC 51 1. Safety
MG.02.C2.02 - VLT
®
is a registered Danfoss trademark
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