3 
Chapter 2    Safety Precautions 
 
2.1 Operation Precaution 
 
2.1.1 Before Power ON 
  Caution 
The line voltage applied must comply with the inverter’s specified input voltage.
 
 
 Danger 
Make sure the main circuit connections are correct. L1(L), L2 and L3(N) are 
power-input terminals and must not be mistaken for T1, T2 and T3. Otherwise, the 
inverter might be damaged. 
 
 Caution 
z  To avoid the front cover from disengaging, do not pull the cover during handling 
for the heat sink should be fallen off. Accident falling down will damage the 
inverter or injure to person, which should be avoided. 
z  To avoid the risk of fire, do not install the inverter on a flammable object. Install it 
on nonflammable object such as metal. 
z  If several inverters are placed in the same control panel, add extra heat sink to 
keep the temperature below 40 degree C to avoid overheat or fire. 
z  When removing or installing the operator, turn OFF the power first, and 
manipulate the operator following the instruction of the diagram to avoid 
operator error or no display caused by bad contact. 
 
Warning
 
This is a product of the restricted sales distribution class according to IEC 61800-3. 
In a domestic environment this product may cause radio interference in which case 
the user may be required to take adequate measures.
 
 
  Caution 
To ensure the safety of peripheral devices, it is strongly command to install a fast 
acting fuse in the input side especially for higher output system. Regarding the 
specification of fast acting fuse, please refer to P7.