2.  Check whether peripheral accessories (including input reactors, input filters, output reactors, output filters, DC reactors, brake units and brake resistors) of the VFD are of correct type and installed properly; check whether the installation cables fulfill requirements on current-carrying capacity.

3.  Check whether the VFD is installed on fire-retardant materials; check whether the hot parts (reactors, brake resistors, etc.) are kept away from combustible materials.

4.  Check whether all the control cables are routed separately with power cables based on EMC requirement.

5.  Check whether all the grounding systems are grounded properly according to VFD requirements.

6.  Check whether installation spacing of the VFD complies with the requirements in operation manual.

7.  Check whether installation mode of the VFD complies with the requirements in operation manual. Vertical installation should be adopted whenever possible.

8.  Check whether external connecting terminals of the VFD are firm and tight enough, and whether the moment is up to the requirement.

9.  Check whether there are redundant screws, cables or other conductive objects inside the VFD, if yes, take them out.