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4.2 EMC—Electromagnetic Compatibility
4.2.1 Valid Regulations
4.2.2 Likely Sources of Interference
4.2.3 Power Supply Stability, Requirements
4 – 14
The inverter systems and motors comply with the following standards based
on European Community EMC directive No. 89/336/EEC:
Power line disturbance and radio interference suppression Class A
according to EN 55022
Power line disturbance and radio interference suppression Class A
according to EN 55011
Radio interference and immunity to interference according to IEC 61800-3
The inverter systems and motors are intended for operation in
industrially-zoned areas.
Protect your equipment from interference by observing the following rules and
recommendations.
Interference is mainly produced by capacitive and inductive coupling from
electrical conductors or from device inputs/outputs, such as:
Strong magnetic fields from transformers or electric motors
Relays, contactors and solenoid valves
High-frequency equipment, pulse equipment and stray magnetic fields from
switch-mode power supplies
Power lines and leads to the above equipment
Since the regenerative power supply units from HEIDENHAIN use sine
commutation, there is no interference in the frequency range up to 2.5 kHz.
To keep interference in the frequency range above 2.5 kHz to a minimum, the
power supply stability must meet the following requirements:
Regenerative power
supply units
UV 120, UVR 120D,
UR 2xxD
UVR 130D
UV 140, UVR 140D
UVR 150
UVR 150D
UVR 160D(W)
a. This value applies only in conjunction with HEIDENHAIN
three-phase capacitors.
HEIDENHAIN Technical Manual for Inverter Systems and Motors
Minimum short-circuit
a
current
I
= 50 * I
= 1600 A
SC
N
I
= 50 * I
= 2200 A
SC
N
I
= 50 * I
= 3300 A
SC
N
I
= 50 * I
= 3700 A
SC
N
I
= 50 * I
= 4000 A
SC
N
I
= 50 * I
= 5800 A
SC
N
Minimum short-
circuit power
S
= 1.10 MVA
K
S
= 1.50 MVA
K
S
= 2.15 MVA
K
S
= 2.60 MVA
K
S
= 2.86 MVA
K
S
= 4.00 MVA
K
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