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LIMAX4R Shaft Information System Safe, absolute measurement for hoisting heights up to 1.500 m

The sensor is designed to be used as a safe sensor together with a safe evaluation unit or directly with a safe controller. In combination, the complete system is able to fulfil safety functions in the elevator in accordance with EN 81-20. LIMAX44 RED is available in two versions. In the unguided version, the magnetic tape is glued directly to the guide rail of the elevator. In the semi-guided version, the magnetic tape is mounted freely suspended in the shaft with the aid of a mounting kit. The tape guide integrated in the sensor serves to maintain the required reading distance.

  • Redundant sensor with integrated monitoring
  • TÜV tested according to SIL3 according to EN 81-20
  • Absolute position always directly available - no lreferencing even after long power   failures
  • RS485 interface, others on request
  • Door zone display for up to 127 floors
  • For speeds up to 16 m/s
  • Noiseless technology
  • Robust measuring principle, insensitive to dirt, smoke and moisture
  • Simplified mounting for tall buildings, no mounting clips required
Product inquiry

MECHANICAL DATA

Measuring principleabsolute, redundant
Repeat accuracy± 1 increment
System accuracy in  µm at 20 °C± (1000 + 100 x L), L= measuring length in meters
Distance sensor/ tape9 mm or 11 mm (depends on magnetic tape type)
Housing materialaluminium
Housing dimensions (W x B x H)466 x 78 x 36 mm
Required magnetic tapeAB20-120-1-R1-C-16A-4943F
Basic pole pitch (magnetic tape)12 mm
Max. measuring length786 m, 1500 m (in preparation)
Connections5 pin M12 round connector, others on request
Sensor cableno cable (fixed connector on housing)
Weightapprox. 900 g

 ELECTRICAL DATA

Power supply voltage10 ... 30 VDC
Residual ripple< 100 mV
Current consumptionmax. 600 mA
InterfacesRS485, others on request
Resolution62.5 µm, others on request
Max. operating speed18 m/s

CONFORMANCE / STANDARDS / CERTIFICATIONs

Achieved SIL SIL3 (TÜV-certified)
Fulfilled standardsEN 81-20
Type examinationin preparation: EU type examination according to EN 81-20

ENVIRONMENTAL CONDITIONS

Storage temperature-25 ... +85 °C 
Operating temperature-10 ... +70 °C, -25 ... +85 °C on request
Humiditiy95 %, non-condensing
Operating heightmax. 2000 m above sea level
Protection classIP54 (according to EN60529), higher on request
Interference emission/ immunity EN 12015 / EN 12016
Vibration/ shock resistanceEN 60068-2-6/ EN 60068-2-27/ EN 60068-2-29

FLYER

Flyer LIMAX4R

OPERATION MANUAL

LIMAX4R

MOUNTING INSTRUCTIONS FOR MAGNETIC TAPE (semi-guided version)

LIMAX S-RMS-H tension spring

LIMAX S-RMS-WH tension weight

Product of ELGO Batscale AG