Danfoss VLT Series Design Manual page 49

VLT ® HVAC Drive Design Guide
2.9.4. EMC Immunity
In order to document immunity against interference from electrical phenomena, the following
immunity tests have been performed on a system consisting of an adjustable frequency drive (with
options, if relevant), a shielded control cable and a control box with potentiometer, motor cable
and motor.
The tests were performed in accordance with the following basic standards:
•
•
•
•
•
See following EMC immunity form.
VLT HVAC; 200-240 V, 380-480 V
Basic standard
Acceptance criterion
Line
Motor
Brake
Load sharing
Control wires
Standard bus
Relay wires
Application and serial com-
munication options
LCP cable
External 24 V DC
Enclosure
AD: Air Discharge
CD: Contact Discharge
CM: Common mode
DM: Differential mode
1. Injection on cable shield.
2.2: Immunity
EN 61000-4-2 (IEC 61000-4-2): Electrostatic discharges (ESD): Simulation of elec-
trostatic discharges from human beings.
EN 61000-4-3 (IEC 61000-4-3): Incoming electromagnetic field radiation, amplitude
modulated Simulation of the effects of radar and radio communication equipment, as
well as mobile communications.
EN 61000-4-4 (IEC 61000-4-4): Electrical interference: Simulation of interference
brought about by switching with a contactor, relays or similar devices.
EN 61000-4-5 (IEC 61000-4-5): Surge transients: Simulation of transients brought
about by lightning that strikes near installations (e.g.).
EN 61000-4-6 (IEC 61000-4-6): RF Common mode: Simulation of the effect from
radio-transmitting equipment connected to cables.
Burst
IEC 61000-4-4
B
4 kV CM
4 kV CM
4 kV CM
4 kV/2 Ω
4 kV CM
4 kV/2 Ω
2 kV CM
2 kV CM
2 kV CM
2 kV CM
2 kV CM
2 kV CM
—
MG.11.B4.22 - VLT ® is a registered Danfoss trademark.
2. Introduction to the VLT HVAC Drive
Surge ESD Radiated electromagnetic
IEC 61000-4-5 IEC
61000-4-2 IEC 61000-4-3
B B
2 kV/2 Ω DM
—
4 kV/12 Ω CM
4 kV/2 Ω 1) —
1) —
1) —
2 kV/2 Ω 1) —
2 kV/2 Ω 1) —
2 kV/2 Ω 1) —
2 kV/2 Ω 1) —
1) —
2 kV/2 Ω
0.5 kV/2 Ω DM
—
1 kV/12 Ω CM
8 kV AD
—
6 kV CD
RF common
field mode voltage
IEC 61000-4-6
A A
— 10 V
RMS
10 V
—
RMS
— 10 V
RMS
— 10 V
RMS
— 10 V
RMS
— 10 V
RMS
— 10 V
RMS
— 10 V
RMS
— 10 V
RMS
— 10 V
RMS
10 V/m —
2
49