2 Safety
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– V
425–1350 hp
[315–1000 kW]
40 minutes
525–690 V
535–1875 hp
[400–1400 kW]
30 minutes
VLT AQUA Drive
FC 200 Series
Software version: 1.6x
This guide can be used with all
adjustable frequency drives with
software
version 1.6x or later.
The actual software version
number can be read from
15-43 Software Version
.
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
380–480V: At altitudes above 9,843 feet [3 km], please
contact Danfoss regarding PELV.
525–690V: At altitudes above 6561 ft [2 km], please contact
Danfoss regarding PELV.
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
Elec. OL
trip
or
Elec. OL warning
. For the North American
market: Electronic Thermal Overload functions
provide class 20 motor overload protection in
accordance with NEC.
•
The ground leakage current exceeds 3.5mA.
•
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
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.
Safety
VLT AQUA 12-Pulse High Power Instruction Manual
MG.20.Y1.22 - VLT
®
is a registered Danfoss trademark
2-1
2
2
