Danfoss VLT Series Service Manual page 3

!
WARNING:
FOR YOUR SAFETY:
TOOLS REQUIRED:
VLT
The Adjustable Frequency Drive (AFD) contains dangerous voltages
when connected to the line voltage. Only a competent technician
should carry out the service.
1) DO NOT touch the electrical parts of the AFD when the AC line is
connected. After the AC line is disconnected wait at least 15 minutes
before touching any of the components.
2) When repairs or inspection is made the AC line must be disconnected.
3) The STOP key on the control panel does not disconnect the AC line.
4) During operation and programming of the parameters the motor may start
without warning. Activate the STOP key when changing data.
The following tools will be sufficient to troubleshoot and repair all units covered by
this manual:
Digital multi-meter
Clamp-on ammeter
Analog voltmeter
Flat head screw drivers
Phillips screw drivers
Torx drivers - T10, T15, T20, T27
Socket 7mm
Pliers
Torque wrench
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Series Service Manual
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