Harmonic Current Emission; Aggressive Environments - Danfoss VLT 2800 Manual

Basic standard
61000-4-4
Acceptance
criterion
Port connection
Line
Motor
Control lines
Relay
Profibus
Signal interface
<3 m
Enclosure
Standard bus
Basic speci-
fications
Line 2 kV / DCN
Motor
Control lines 2 kV / CCC
Relay 2 kV / CCC
Profibus 2 kV / CCC
Signal interface 2 kV / CCC
<3 m
Enclosure
Standard bus 2 kV / CCC
DM: Differential mode
CM: Common mode
CCC: Capacitive clamp coupling (5 kHz)
DCN: Direct coupling network (5 kHz)
1. Injection on cable shield.
2. Electromagnetic clamp.

Harmonic Current Emission

All 3 phase 380-480 V units comply with EN
61000-3-2.

Aggressive environments

As all other electronic equipment, a frequency con-
verter contains a number of mechanical and electronic
components, which to a varying extent are vulnerable
to environmental impact.
Consequently, the frequency converter is
not to be installed in environments, where
liquids, particles or gases are in the air
that would impact and damage the elec-
tronics. Unless the necessary measures
are taken to protect the frequency con-
verter, there is a risk of stoppages, which
MG.27.E2.02 - VLT is a registered Danfoss trademark
Burst Surge
61000-4-5
B B
CM DM / CM
OK / OK
OK
OK 1
- / OK
OK - / OK
OK 1
- / OK
OK
1
OK
- / OK
2 kV / 4kV
2 kV/2 Ω
1
2 kV/2 Ω
1
2 kV/2 Ω
1
8 kV AD
6 kV CD
2 kV/2 Ω
1
ESD Radiated
61000-4-2 61000-4-3
B A
Field
OK OK
10 V/m
reduce the service life of the frequency
converter.
Liquids can be carried through the air and condense
in the frequency converter. In addition, liquids may fa-
cilitate galvanic corrosion of components and metal
parts. Steam, oil and brine may cause corrosion of
components and metal parts. In these areas, it is rec-
ommended to fit units in cabinets. As a minimum,
cabinets should be enclosure IP 54.
Particles in the air, such as dust particles, may lead to
mechanical, electrical and thermal faults on the fre-
quency converter. Typical indicators that there are too
many particles in the air are dust particles around the
frequency converter fan. In very dusty areas, cabinet
Mains RF CM
2
distortion
voltage
VDE 0160
61000-4-6
A
DM CM
OK
OK
OK
OK
OK
10 Vrms
10 Vrms
10 Vrms
10 Vrms
10 Vrms
10 Vrms
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