1. General Information
1.1. Safety and General Information
1.1.1. General Warning
The voltage of the frequency converter is dangerous whenever the equipment is
connected to mains. Incorrect installation of the motor or the frequency converter
may cause damage to the equipment, serious personal injury or death.
Consequently, the instructions in this manual, as well as national and local rules and
safety regulations, must be complied with.
Installation in high altitudes:
By altitudes above 2 km, please contact Danfoss Drives regarding PELV.
1.1.2. Safety Regulations
1.
The frequency converter must be disconnected from mains if repair work is to be carried
out. Check that the mains supply has been disconnected and that the necessary time has
passed before removing motor and mains connections.
2.
The [STOP/RESET] key on the control panel of the frequency converter does not dis-
connect the equipment from mains and is thus not to be used as a safety switch.
3.
Correct protective earthing of the equipment must be established, the user must be pro-
tected against supply voltage, and the motor must be protected against overload in
accordance with applicable national and local regulations.
4.
The earth leakage currents are higher than 3.5 mA.
5.
Protection against motor overload is not included in the factory setting. If this function
is desired, set parameter 128 to data value
ETR trip
or data value
ETR warning
. For VLT
6000, VLT 8000 and VLT 4000, set parameter 117 to data value
ETR trip
or data value
ETR warning.
Note: The function is initialised at 1.16 x rated motor current and rated motor frequency
(see the Operating Instructions). The ETR functions provide class 20 motor overload
protection in accordance with NEC (North America).
6.
Do not remove the connections for the motor and main supply while the frequency con-
verter is connected to mains. Check that the mains supply has been disconnected and
that the necessary time has expired before removing motor and mains connections.
7.
Please note that the frequency converter has more voltage inputs than L1, L2 and L3,
when loadsharing (linking of DC intermediate circuit) and external 24 V DC have been
installed. Check that all voltage inputs have been disconnected and that the necessary
time has passed before repair work is commenced.
8.
Cooling: The unit must be cooled properly. For IP 21 / NEMA 1 and IP 54 / NEMA 12
units, the gland plate at the bottom must be installed and it must be sealed properly.
Not installing it correctly will affect the internal cooling of the unit and cause unintended
over-temperature warnings and alarms.
9.
Do not tilt the frequency converter as the centre of gravity is high. Make sure it is fixed
to a floor stand, the wall, or another fixing point.
VLT
®
5000/6000/8000
High Power Installation Guide
1. General Information
MI.90.J2.02 - VLT
®
is a registered Danfoss trademark
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