User Manual
EM100 Mini Inverter
28
Installing an AC Reactor
If power supply is connected to capacitive load, an excessive big surge current will occur
and rectifier of inverter can be broken down. Install an optional 3-phase/1-phase AC
reactor on input side of inverter to suppress peak current and voltage, and improve power
factor of the system.
Installing a Surge Absorber
Install a surge absorber for inductive loads (electromagnetic contactors, solenoid valves,
solenoid coils, or electromagnetic circuit breakers) nearby the inverter.
Countermeasure for Excessively Large Leakage Current(Only Applicable to
the products of SIZE3&SIZE4)
When the inverter is applied to the applications which are sensitive to leakage current,
for instance: civil application, malfunction of leakage protection switch is likely to occur.
Please loosen the screw anticlockwise on EMC terminal.
Installing a Noise Filter on Power Supply Side
To filter noise transmitted between power cable and the inverter, and the impact on
power grid caused by the noise produced by the inverter.
z
A special purpose noise filter is required for the inverter.
z
Correct vs incorrect installations of noise filters as shown in Figure 3-7 and Figure
3-8.
Figure 3-7 Correct Installation of Noise Filter
（
a
）
(b)
Figure 3-8 Incorrect Installation of Noise Filter
