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E6580757
J-5
10
Optional external devices
No. Device Function and purpose
(1)
Input AC reactor Used to improve the input power factor, reduce the harmonics, and suppress external
surge on the inverter power source side. Install when the power capacity is 500 kVA or
more and 10 times or more than the inverter capacity or when a distorted wave genera-
tion source such as a thyristor unit or a large-capacity inverter is connected in the same
distribution system.
{ Large : Large effective. { : effective. × : ineffective
(2)
DC reactor Improves the power factor more than the input reactor. When the facility applying the
inverter requires high reliability, it is recommended to use the DC reactor with an input re-
actor effective for external surge suppression.
* An inverter unit of 200V-3.7kW or less is connected to a reactor selected on page J-8, 9
to conform “Guides of limits for harmonics current emissions on general purpose
inverter having an input current up to and including 20A per phase” by the Japan Elec-
trical Manufacturers’ Association.
(3)
High-attenuation filter
(LC filter)
NF type
manufactured by
Soshin Electric Co.
These types of filters are not necessary because all single-phase 200V or 3-phase 400V
models and 3-phase 200V, 5.5kW or 7.5kW models have a built-in EMI noise filter, con-
forming to Class A, as standard. But install these filters if necessarily of noise reduction
move and more.
• Effective to prevent interference in audio equipment used near the inverter.
• Install on the input side of the inverter.
• Provided with wide-range attenuation characteristics from AM radio bands to near
10MHz.
• Use when equipment readily affected by noise is installed in the peripheral area.
(4)
Zero-phase reactor
(Inductive filter)
Ferrite core type
manufactured by
Soshin Electric Co.
• Effective to prevent interference in audio equipment used near the inverter.
• Effective in noise reduction on both input and output sides of the inverter.
• Provided with attenuation characteristics of several dB in frequencies from AM radio
bands to 10MHz.
• For noise countermeasures, insert on the secondary side of the inverter.
(5)
Radio noise reduction filter
Foot-mounted type
noise reduction filter
(Soon to be
released)
High-attenuation EMI noise filter requiring only small space; mounted on the rear side of
the inverter. This filter can be installed to conform to the following classes of EMC stan-
dard EN5501 Group 1.
3-phase 200V models excluding those of 5.5/7.5kW : Conform to Class A.
All models other than above : Conform to Class B.
(6)
Braking resistor Use when rapid deceleration or stop is frequently required or when it is desired to reduce
the deceleration time with large load. This resistor consumes regenerative energy during
power generation braking.
• Braking resistor – With (resistor + protective thermal relay) built in.
(7)
Motor-end surge voltage
suppression filter (400V
class only)
Use an insulation-reinforced motor or install the surge voltage restraint filter to prevent
degrading motor insulation caused by surge voltage generation depending on cable
length and wiring method, or use of a 400V class motor driven with an inverter.
(8)
Conduit pipe kit
(Soon to be released)
Attachment kit used for conformance to NEMA TYPE1.
(9)
IP43 enclosure kit
(Soon to be released)
Attachment kit for making a panel conform to the IP43 structure.
(10)
DIN rail kit
(Soon to be released)
Available for the 200V class models of 0.75kW or less. (Model: DIN001Z)
Effect
Harmonics Suppression
Reactor type
Power factor
improvement
200V-3.7kW
or less
Other model
External surge
suppression
Input AC reactor
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DC reactor { Large
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