4.7.3 EMC environments in residential and industrial areas
Description
IEC 61800-3
denes EMC requirements for using variable-speed drives in the following 2
environments:
• 1st environment: Residential environment
The residential environment includes residential buildings or locations where the drive is
directly connected to the public low-voltage grid without using an intermediate transformer.
Equipment and systems that are operated on the public low-voltage grid must comply with
dened limit values for interference immunity and interference emission. The limit values are
specied in the applicable standards. Especially for interference emissions, increased
requirements apply regarding the 2nd environment.
• 2nd environment: Industrial Environment
An industrial environment includes all other installations that are not directly connected to
the low-voltage supply for residential buildings. The 2nd environment essentially
encompasses industrial areas that are supplied from the medium voltage grid via their own
transformers.
4.7.4 EMC category
Description
Together with the associated motors and encoders, including the connecting cables, the
converter forms a variable-speed drive. Product standard IEC61800‑3 denes the EMC
requirements for a variable-speed drive. Product standard IEC61800‑3 calls a variable-speed
drive a "Power Drive System" (PDS).
IEC 61800-3 denes categories for electromagnetic compatibility in the 1st environment and
the 2nd environment.
Table 4-3 Environments and categories according to IEC 61800-3
Environment 1st environment 2nd environment
Category C1 C2 C3 C4
1)
Voltage, current <1000V ≥1000V
or
≥400A
Line system cong‐
uration
TN, T
T TN, TT, IT
Installation, com‐
missioning
No req
uirement By professional personnel
1)
Pr
econdition: Plant manufactur
er
s and operating companies agree on plant-specic measures in an
appropriate EMC plan. If specied in the product documentation, the drive can also be operated on
ungrounded line supplies (IT line systems) in accordance with product standard IEC61800‑3.
Application planning
4.7Electromagnetic compatibility (EMC)
SINAMICS S200 PROFINET servo drive system with SIMOTICS S-1FL2
Operating Instructions, 11/2023, FW V6.3, A5E51646752B AB 89