Samsung MOSCON-E7 - Installing a Noise Filter on Power Supply Side; Figure 3.6 Power Supply Noise Filter Installation; Table 3.7 Application of the Surge Absorber

3.Wiring 3-13
Table 3.7 Application of the surge absorber
Description Model Specification
Large Capacity Coil
except Relay
DCR2-50A 22E AC250V 0.5u ㎌ 200Ω
200
~230V
Control Relay DCR2-10A 25C AC250V 0.1 ㎌ 100Ω
380~460V Devices DCR2-50D 100B DC 1000V 0.5 ㎌ 220Ω
Note) The above surge absorbers are the product of MARCON. Use the recommend product or
equivalents.
3.6.1.6 Installing a noise filter on power supply side
• Install the noise filter in order to eliminate noise transmitted from the
power line to the inverter.
(a) Wiring example 1 (Correct)
(b) Wiring example 2
IM
◠
◠
◠
~
MCCB
◠
◠
MCCB
Control
circuit
E7
※Use the noise filter
designed specifically
for the inverter
Power
Noise filter
IM
◠
◠
◠
~
MCCB
E7
Power
Noise filter
※Noise filter is not
necessary if the inverter
and power is used 1:1
3-14 MOSCON-E7 User’s Manual
(c) Wiring example 3
(d) Incorrect wiring example
Figure 3.6 Power supply noise filter installation
IM
◠
◠
◠
~
MCCB
◠
◠
MCCB
Control
circuit
E7
Power
General
noise
filter
IM
◠
◠
◠
General
noise
filter
~
MCCB
◠
◠
MCCB
Control
circuit
E7
※Usin
g
the
g
eneral noise
filter is not effective.
Power
IM
◠
◠
◠
~
MCCB
◠
◠
MCCB
Control
circuit
E7
Power
※Connectin
g
the insulatin
g
transformer to power
supply of the control
circuit is same effective of
the noise filter.