Additional Installation Tips
6
Additional Installation Tips
When experiencing communication problems in for example noisy environments
or when operating close to temperature limits, the following recommendations
are to be noticed.
6.1 Grounding the operator panel
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 panel, 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.
A ferrite core suppresses disturbances to the 24 V feed, see 6 in drawing above.
Beijer Electronics, MAEN185
21
