Beijer Electronics X2 extreme 7 - Additional Installation Tips; Grounding and Shielding

Additional Installation Tips
7 AdditionalInstallationTips
When experiencing communication problems in noisy environments or whe n
operating close to tem p erature limits, the following recommendations are to be
noticed.
7.1 Groundingtheoperatorpanel
1
2
3
4
5
6
5350
Door
Operator panel
Ferrite core
Mounting plate in the cabinet
Power supply
24 V DC
The mounting clamps of the operator panel do not provide a secure grounding
connection between the panel and the device cabinet, see 1 in drawing above.
1.
Connect a wire, that is sized correctly according to local electrical codes,
between the quick-connect terminal connector on the operator panel and the
chassis of the pan el, see 2 in drawing above.
2.
Connect a wire or grounding braid, that is sized correctly according to local
electrical codes, between the chassis of the operator panel and the closest
grounding point on the door, see 3 in drawing above.
3.
Connect a strong but short grounding braid between the door and the device
cabinet,see 4 in drawing above.
4.
Twist the cables onto the 24
V DC feed, see 5 in drawing above.
2 turns around the ferrite core provide 4 times the suppression of 1 turn.
3 turns around the ferrite
core provide 9 times the suppression of 1 turn.
Connect a wire or grounding braid, that is sized correctly according to local
electrical codes, between the chassis of the operator panel and the closest
grounding point.
BeijerElectronics, MAEN249B
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