8th edition, 9-11-2018
7000.05038, 8th edition, 9-11-2018
7000.05038
Installation
20
4.2.3.2
EMC protective measures
To reduce the effects on the DC power supply network, L1 ferrite sleeves (such as WE 742
700 790) can be used on the supply cables.
To protect against overvoltage on the supply side (surge), it is recommended to additionally
connect an external diode D1 (e. g. NTE 4934, 1500 W).
Fig. 7:
EMC suppressor circuit
NOTICE!
Risk of damage caused by EMC interaction in the case of separate electronics supply
In the case of a separate electronics supply, the suppressor circuit (see Fig. 7) must be
such that it protects both supply connections.
Mcxx 3003/3006 protective measures
The devices are intended only for use in industrial applications. If the devices are used in
the home, in business, in commerce or in a small business, appropriate measures must be
taken to ensure that the emitted interference is below the permissible limit value.
Tab. 3 shows which additional EMC measures can be implemented to optimise the behav-
iour of the equipment in the intended environment with regard to transient emission and
interference resistance.
Tab. 3:
EMC measures
EMC filter (MCDC 3006 S and MCBL 3006 S only):
The supply and motor supply cables must be installed directly at the device with two
windings through a suitable ferrite sleeve (e.g. Würth Elektronik No.: 74270090).
EMC suppressor circuit (MCBL 3006 S and MCLM 3006 S only):
The signal cables of the MCBL 3006 S and MCLM 3006 S must be installed directly at the
device with two windings through a star ring (e.g., Würth Elektronik No.: 7427153).
To provide the required interference resistance in industrial applications, it may be
necessary to use an EMC filter or a screen and an EMC suppressor circuit.
L1
D1
G
ND
Motor
Int.
S
upply
U
B
Motion Controller
Operational environment
Interference type
Action
MCDC 3006 S
Industrial area
Transient emission
EMC filter
MCBL 3006 S
Industrial area
Transient emission
EMC filter
MCBL 3006 S
Industrial area
Interference resistance
EMC suppressor circuit
