
7.GROUNDING I/O Link B-65322EN/02
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7.2 SVM1-40i and SVM1-80i
signal grounding
terminal
Clamp shield
External shielded
cable
Ground plate
Connected to cabinet
Distribution
panel
Distribution
panel
Class-3 ground or higher
Cabinet
CAUTION
1 Ground the shield of the cable drawn from the outside of the cabinet to the ground
plate provided near the cabinet inlet with a clamp. This is to prevent noise on the
cable shield outside the cabinet from getting into the cabinet and also to prevent
noise inside the cabinet from radiating outside.
2 Connect the signal grounding terminal of the βi SVM to a ground. Use a Faston
terminal (A65L-0001-0148/2) as the terminal on the βi SVM side. Use a 2-mm
2
or
thicker twisted cable with a length of around 100 to 300 mm for installation. If the
signal grounding terminal is not grounded as mentioned here, the unit becomes
more susceptible to noise.
3 The flange of the βi SVM has an M4 threaded hole for grounding. Use this hole
for grounding as shown in the above figure.