User`s manual

5 - 3 5 - 3
MELSEC
5 PROCEDURE AND SETTINGS UP TO THE POINT OF OPERATION
5.2.2 Installation environment
See the instruction manual accompanying the PC unit regarding installation of the PC
unit in which the CC-Link board is mounted.
CAUTION
• Always ground the PC unit using grounding type D (Class 3 grounding). Otherwise,
there is the risk of malfunctioning.
If there is an error in operation even when the PC unit is grounded, ground the FG
terminal of the PC unit as well as the SLD terminal of the CC-Link board.
5.2.3 How to remove the terminal block
The CC-Link board uses a two-piece terminal block, so that the CC-Link board can be
replaced without disconnecting the signal line to the terminal block.
The illustration below shows how to remove the block.
HIGH
LOW
Screwdriver
Remove the two screws at both ends
of the terminal block and pull them out.