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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

Door

Operator panel

Ferrite core

Mounting plate in the cabinet

Power supply

24 V DC

5350

The operator panel’s mounting clamps 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 operator panel’s quick-connect plinth and the panel’s chassis, see
2 in drawing above.

2. Connect a 6 or 4 mm

2

wire or grounding braid between the panel’s chassis 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.

Note:

The grounding wires should be short and the conductor should have a large area.
A long, thin grounding wire has a very high impedance (resistance) at high frequencies
and will not guide disturbances to the ground.
Multi-wire conductors are better than single wire conductors with the same area.
A braided conductor wire with the same area is even better. The best is a short, thick
grounding braid.

Beijer Electronics, MAEN852B

18

Summary of Contents for 06861B

Page 1: ...EXTER K20m Installation Manual English MAEN852B 2014 10...

Page 2: ...updating this publication Beijer Electronics AB assumes no responsibility for any errors that may appear in this document Read theentireinstallation manual prior to installing and using this equipment...

Page 3: ...calData 11 4 ChemicalResistance 12 4 1 MetalCasing 12 4 2 Screen and Overlay Material 12 4 2 1 Autotex F157 207 12 4 2 2 Screen Surface 13 4 2 3 Screen and Keyboard Protector 14 5 Operator Panel Drawi...

Page 4: ...sa powerful irritant Incase of skincontact wash immediately with plenty ofwater In case of eye contact holdthe eye open ush with plenty of water and get medical attention The gures in this manualserve...

Page 5: ...duct contains a rechargeable battery this must only be changed in an area known to be non hazardous Replace the battery with aMS614S battery Use of anothertype ofbattery maypresent a risk of re orexpl...

Page 6: ...roduct to the poweroutlet Peripheral equipment must be appropriate forthe application and location 1 4 During Use Keep the operatorpanel clean Emergency stopand othersafety functions may notbe control...

Page 7: ...inch 155 mm 6 10 inch 100 mm 4 0 inch 46 4 mm 1 83 inch Caution The openings on the enclosure are for airconvection Do not cover these openings 2 2 Installation Process 1 Unpackand check the delivery...

Page 8: ...ated draw along the outer sides ofthe holesandcutaccording to the markings For text strip 9 0 mm 13 0 mm 0 51 inch 0 35 inch 3 Secure the operator panel in position usingallthe fasteningholesand the p...

Page 9: ...herwise errors in communication may occur Ensure that the voltage and polarity of the powersource is correct Separate high voltage cables from signal and supply cables Shielded communication cables ar...

Page 10: ...to the Controller For information aboutthe cables to be used when connecting the operator panelto the controller please refer to the help le for the driverin question 2 2 3 Other Connections and Perip...

Page 11: ...Real time clock battery rechargeable MS614S UL and cUL SII Micro Parts Ltd Power consumption at rated voltage Normal 0 1 A Maximum 0 3 A Display FSTN LCD 240 x64 pixels monochrome transmissive negativ...

Page 12: ...3 Hydrochloric acid 5 Nitric acid 10 Isopropyl alcohol Phosphoric acid 43 Na hypochlorite 10 Turpentine Note If exposure to any of the above chemicals is demanded itis recommended to first test the c...

Page 13: ...ffin oil Windex1 Cyclohexanol Persil powderin solution1 Wisk Diacetone alcohol Petroleum spirit1 1 Extremely faintglossingof the texture was noted Autotex withstands DIN 42 115 Part2 exposure of up to...

Page 14: ...d Protector For harsh environments and exposure tooutdoorconditions it isrecommended to use a protective lm toguardthe screen and the keyboard from damage These optional parts canbe ordered from Beije...

Page 15: ...Operator PanelDrawings 5 Operator Panel Drawings 5 1 Communication Ports RS 232 RS 422 RS 422 485 RS 485 Beijer Electronics MAEN852B 15...

Page 16: ...Operator PanelDrawings 5 2 EXTER K20m Outline Beijer Electronics MAEN852B 16...

Page 17: ...Operator PanelDrawings 5 3 EXTER K20m Text Strip 9 0 unit mm R1 4x Text max 15 5x7 5 Text max 18 5x7 5 4 5 11 25 19 0 138 0 20 5 20 5 20 5 19 0 Beijer Electronics MAEN852B 17...

Page 18: ...aid between the panel s chassis and the closest groundingpoint on the door see 3 in drawingabove 3 Connect astrongbut shortgroundingbraid betweenthe doorand the device cabinet see 4 indrawingabove 4 T...

Page 19: ...nithas its shield directly grounded or groundedviaa capacitor Note In many cases connecting the shielded Ethernet cabling to the chassis at both ends is inappropriate Hum or grounding loops canoccur U...

Page 20: ...e shield to the ground via a 0 1 F 250 Vplastic capacitor Both ends are then connected tothe ground in terms ofHF but only connected to the ground at one end in terms ofLF thus avoidingthe 50 Hz groun...

Page 21: ...a large program for controllingthe temperature in the device cabinet An enamel coated steel cabinethasaradiant heatvalue of 5 5 W m2 and degrees C Installinga fan inside the cabinetwill even out the...

Page 22: ...LVaccording to EN 60950 protection against electric shock andUL 950 Note Here is an example that explains why a secure 24 V DC feed can be ruined by mixing 24 V relay contacts with 230 V AC relay cont...

Page 23: ...SB memory stick keyboard or similardevice is plugged in If anumberofunitsare connectedthat have a0 Vand a groundconnection and these are connected to various groundingpoints there is a substantial ris...

Page 24: ...ires may be onthe same levelor require pull up orpull downtoensure that no faultysignals are detected when the busisin restingmode all transmittersare disconnected 1 2 3 4 5 V 0 V 1 K 1 K 120 ohm 120...

Page 25: ...Head office Beijer Electronics AB Box 426 201 24 Malm Sweden www beijerelectronics com 46 40 358600...

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