Conveyor Belt misalignment Switch HES

Conveyor Belt misalignment SwitchHESLeaflet No. Kiepe 495

APPLICATIONKIEPE belt misalignment switches of the HES type are designed forheavy duty application and used at fixed belt conveyors accordingto DIN EN 620 requirements in order to keep the risk of unintentionaloperation as low as possible. The lateral movement of theconveyor belt is monitored and by switching off the conveyor inthe case of unacceptable belt drift, the belt monitoring preventsdamage and destruction of the belt and the machine.Misalignment Switches are allocated in pairs on both sides atthe carrying belt and return belt. The total number of pairs to beused and their installation points are dependent on constructioncharacteristics such as e.g. horizontal or vertical tensioning stations,single-ended or reversible operation and the length of thebelt conveyor. Usually (horizontal tensioning station, single-endedoperation, length of up to 30 m) one pair of switches is installed infront of the discharge station at the carrying belt.OPERATIONInadmissible belt drift occurs when the belt edge approaches theend of the supporting rollers through lateral movement and surpassesit. Then the actuator of the misalignment switch is operatedand displaced. In the case of a displacement of the actuator, thefirst adjustable switching point is between 5° and 15°, the secondbetween 15° and 35°. The shut-off of the conveyor is carried outoptionally with the first or second switching point.Alternatively, a misalignment warning can be created with the firstswitching point or a safety switch-off with the second switchingpoint. The actuating roller is equipped with ball-bearings andmade of alloyed steel and with a large roll diameter of 48 mm itis resistant to wear and is used for belt speeds of up to 3 m/s andhigher.TECHNICAL DATAComplies with EN 60947-5-1Suited for Controls and facilities according to EN 60204Enclosure Aluminum alloy GK-ALSi 12Finish 2 component DD-tile enamel, yellow RAL 1004Mounting2 oblong holes for M8 screwsAdmissible ambient temperature - 25 °C … + 70 °CExtended temperature range- 40 °C … + 70 °C for HES 711 modelProtection IP 65 according to EN 60529Switching system2 cam operated snap action changeover contacts SPDT, positive makingActuatorRoller lever, Ø 48 mm, stainless steelSwitching points adjustable between 5° … 15° or 15° … 35° (standard setting is 2 x 10°)Displacement of actuator max. 75°Rated operating voltage U eAC 230 V, DC 230 VConventional thermal current I th6 ABreaking capacityAC-15DC-24U e = AC 240 V, I e = 1.5 AT = 2 … 3 ms, to 3 ACable entry threaded hole 2 x M25 x 1.51x screwed cable gland M25 x 1.5; sealing area Ø 11mm to Ø 16mm1x dummy plug M25 x 1.5Connection cross section max. 1,5 mm 2Protective conductor connection inside enclosure, M4, max. 2,5 mm 2Contact life0,5 x 10 6 switching cycles at 100 % I eMechanical life10 4 switching cyclesOptionalVentilation duct to avoid condensationPlease note: The switches may be used in control circuits only!

SELECTION TABLETypeContactconfigurationTemperatureRange– 40 °C …+70 °COrder numberSPDTLIHES 011 2 92.057 020.011HES 711 2 x 92.057 020.711Spares and optionsActuating roller, stainless steel, Ø 48 mm 93.045 910.001Switch element 220.06.04.01.05Ventilation duct 580.00.16.01.01CONNECTION DIAGRAMSwitching elements according to DIN EN 50013212224111214Actuator sideDimensions9554121621908.5Cable entry M25 x 1.5

DIMENSIONSoperation in both directions∅ 48307108282240150Subject to change without notice.Vossloh Kiepe GmbHD-40599 Düsseldorf (Germany) · Kiepe-Platz 1Telephone +49 (0) 211 74 97-0 · Fax +49 (0) 211 74 97-420info@kiepe-elektrik.com · www.kiepe-elektrik.com495–07/07