Danfoss iC2-Micro Series - Acoustic Noise; EMC Compliance Levels; Overview of EMC Compliance Levels

4.5 Acoustic Noise
The acoustic noise from the drive comes from 3 sources:
l DC-link coils.
l Integral fan.
l RFI filter choke.
The typical values measured at a distance of 1m (3.3ft) from the unit:
Table 34: Typical Measured Values
Enclosure size Full fan speed [dBA]
MA01c –
MA02c 45.9
MA01a 39.8
MA02a 54.1
MA03a 59.5
MA04a 63.8
MA05a 68.7
Test results performed according to ISO 3744 for audible noise magnitude in a controlled environment. Noise tone has been quantified
for engineering data record of hardware performance per ISO 1996-2 Annex D.
4.6 EMC Compliance Levels
4.6.1 Overview of EMC Compliance Levels
The drives are designed and tested to comply with relevant EMC standards. The performance level depends on the actual drive and
selected EMC compliance level.
The EMC compliance levels are tested under the following conditions:
l The drive (with options if relevant).
l Shielded control and communication cables.
l External control with digital I/O and analog control.
l Single motor connected with shielded cable for emission test and unshielded cable for immunity test.
l Load share and brake cables.
l Standard drive settings.
48 | Danfoss A/S © 2024.08 AJ402315027937en-000401 / 130R1239
Design Guide | iC2-Micro Frequency Converters Specifications