Safety Instructions And General Warning; High Voltage; Safety Instructions - Danfoss vlt fc 300 Instruction Manual

®
VLT Automation Drive FC 300 12-Pulse
Safety Instructions and Gen...
Instruction Manual High Power

2 Safety Instructions and General Warning

CAUTION
The adjustable frequency drive DC link capacitors remain
charged after power has been disconnected. To avoid the
electrical shock hazard, disconnect the adjustable
frequency drive from line power before carrying out
maintenance. Before servicing the adjustable frequency
drive, wait the minimum amount of time indicated below:
380–500 V 350–1,075 hp 40 minutes
[250–800 kW]
525–690 V 500–1,900 hp 30 minutes
[355–1,400 kW]
Table 2.1
VLT AutomationDrive
Instruction Manual
Software version: 6.5x
This Instruction Manual can be used for all VLT AutomationDrive
adjustable frequency drives with software version 6.5x.
The software version number can be seen from 15-43 Software
Version.
Table 2.2

2.1.1 High Voltage

WARNING
The voltage of the adjustable frequency drive is dangerous
whenever the Adjustable frequency drive is connected to
line power. Incorrect installation or operation of the motor
or adjustable frequency drive may cause damage to the
equipment, serious personal injury or death. The
instructions in this manual must therefore be observed, in
addition to applicable local and national rules and safety
regulations.
WARNING
Installation at high altitudes
380–500 V: At altitudes above 10,000 feet [3 km], please
contact Danfoss regarding PELV.
525–690 V: At altitudes above 6,600 feet [2 km], please
contact Danfoss regarding PELV.
MG34Q222 - VLT ® is a registered Danfoss trademark
Remote Site Products - 1-888-532-2706 - www.remotesiteproducts.com
http://www.remotesiteproducts.com/p-20872-Danfoss-131H4490-VLT-Automation-VT-Drive-VFD-FC302-460V-25-HP.aspx

2.1.2 Safety Instructions

•
Make sure the adjustable frequency drive is
properly grounded.
•
Protect users against supply voltage.
•
Protect the motor against overloading according
to national and local regulations.
•
Motor overload protection is not included in the
default settings. To add this function, set
1-90 Motor Thermal Protection to value ETR trip or
ETR warning. For the North American market: ETR
functions provide class 20 motor overload
protection, in accordance with NEC.
•
The ground leakage current exceeds 3.5 mA.
•
The [Off] key is not a safety switch. It does not
disconnect the adjustable frequency drive from
line power.
2.1.3 General Warning
WARNING
Touching the electrical parts may be fatal - even after the
equipment has been disconnected from line power.
Make sure that other voltage inputs have been discon-
nected, such as load sharing (linkage of DC intermediate
circuit), as well as the motor connection for kinetic backup.
When using the adjustable frequency drive: wait at least 40
minutes.
Shorter time is allowed only if indicated on the nameplate
for the specific unit.
2-1
2 2