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Belt Conveyor – Pull Rope Switch HEN 211

APPLICATION

Kiepe pull-rope emergency stop switches type HEN 211 are used in accordance with the requirements of EN 620 as well as BGI 710 and in conformity with DIN EN ISO 13850 as emergency stop devices as supplementary safety measures on conveyor belt systems. The pull rope is symmetrically tensioned on both sides of the red release lever. The devices are suitable for outdoor use and applications where the ambient temperature varies considerably.

With the pull-rope system functionally aligned, the emergency stop signal can be triggered over a distance of up to about 100 m for each switch.

Kiepe pull-rope emergency stop switch types HEN 211 comply with Machinery Directive 2006/42/EC and meet the requirements in the safety objectives of Low Voltage Directive 2006/95/EC.

The HEN 211 aluminum housing is equipped with two NC-and one NO-Contact. The NO-Contact is connected to a bus modul, which watches and signalizes the switching status (in/off) economically over long distances.

Pull rope emergency stop switches Type HEN 211 must only be used in control electrical circuits. Taking into consideration the safety data and maintenance recommendations, the pull-rope emergency stop switch type HEN 211 can be used in safety circuits in accordance with DIN EN ISO 13849 up to Performance Level e (PLe).

FUNCTION

The pull-rope emergency stop switch is actuated by a pull rope 1 connected on both sides of the red release lever. The contacts are actuated by a spring supported cam disc (snap action function). At the same time, two NC contacts and one NO contact are actuated simultanously.

The emergency stop signal is performed with positive-making normally closed (NC) contacts in accordance with the closed circuit principle. The NO-contact activates the bus modul 101.

The bus module 101 must be programmed before installation.

After the emergency stop function is triggered, the switching mechanism is locked in the shut-off position “0”. When the blue reset lever is actuated in switch position “1”, the switching contacts are reactivated and the conveyor belt is prepared for being turned back on again.

Resetting the pull-rope emergency stop switch must not cause the conveyor system to start up.

TECHNICAL DATA

Designation: Pull-rope emergency stop switch type HEN 211 – emergency stop device with latching function.

Type of actuation: Bidirectional; spring-loaded (“snap action”)

Complies with:DIN EN ISO 13850; DIN EN 60204-1; DIN EN 60947-5-5; DIN EN 60947-5-1; EN 620; BGI 710

Suited for: Control units and systems in accordance with DIN EN 60204

Mechanics

Enclosure: Aluminum GK-AISi 12

Finish: DD Paint, Enclosure – yellow (RAL 1004), release lever – red (RAL 3000), reset lever – blue (RAL 5010)

Mounting: 2 slotted holes for M8 screws.

Installation position:Horizontal, tilt angle up to about 15°.

Pull-rope length, approved: Up to approx. 100 m.

Actuation force: 30 N ± 10 N

Weight: 1.7 kg.

Electrical System

Switching system: 2 normally close contacts (NC) + 1 normally open contact (NO) for bus-modul; cam operated positive-making switches.

Cable entry: Threaded holes 2x M25 x 1.5 with each 1x screwed cable gland: sealing area Ø 11 mm to Ø 16 mm; 1x dummy screw.

Utilization category: 

AC-15: 230V / 6A

DC-13: 110V / 1,1A

Connection cross section: 1 mm2 to 2.5 mm2

Protective conductor connection: In the casing; M4

Rated insulation voltage Ui: 400V

Rated impulse withstand voltage Uimp: 2.5 kV, degree of pollution III

Conventional thermal current Ith: 16A

Contact reliability: 220.000 switching operations

Ambient conditions in accordance with DIN EN 60947-5-5

Permissible ambient temperature: -25°C.. + 70°C

Protection Rating: IP 67 in accordance with EN 60529

Safety data in accordance with DIN EN ISO 13849 and EN 61062

Safety functions: Emergency stop incl. latching. Manual reset.

Usable in accordance with DIN EN ISO 13849-1: Up to PLe (depending on customer application)

B10d-value: 24.000 actuation’s

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