Nanda NA300 Series User Manual And Technical Specifications page 150

NA300 Series Programmable Logic Controller Technical Specifications and User Manual
Step C:
Press the module down so that the module is fully in contact with the connector on
the backplane while ensuring that the module's fastening screw can be inserted into the
threaded hole in the backplane.
Note: When the module is pressed downwards, if the resistance is too large, it
means the module does not jam the buckle below, and then push the module to
continue to move downwards.
Step D：
Tighten the fastening screw.
- 149 -