Az LS

The Az LS axle counter system couples low investment with highest reliability and SIL4 safety. Az LS consists only of trackside equipment; simplifying track modernization and keeping infrastructure costs at a minimum.

Competitive and facile

Axle counter system Az LS

Az LS axle counter system utilizes Hitachi Rail’s high performance axle counter technology, which has proven itself in many main line and urban rail applications around the globe.

Az LS consists only of trackside equipment. All electronics comes ready with an outdoor housing. No indoor electronics.

This compact yet simple system guarantees railway operators SIL4 fail-safe automatic track occupancy detection directly at the trackside. Track clear/occupied information is transmitted to the interlocking/block equipment at each end of a section. The monitoring of the section occurs reliably independent of section length or ballast and shunt conditions.

Especially designed for small applications, track upgrades and easy transition from track circuits to axle counter systems; unmistakable and simple configuration.

Az LS can be easily integrated into diverse applications, including:

•upgrading token block and semi-automatic block systems,

•providing automatic block facilities,

•replacing existing track circuit equipment on long lines or on lines with poor ballast conditions, loop lines and level crossing

Trackside equipment

Classic: EAK30H

Classic: Sk30 and Sk30H

Drill mounting

Trackside equipment
Supply voltage		24VDC or 60-120VDC
Temperature (operation)		Class T1 und T2 [EN 50125-3] - 40 ... + 70 °C
Humidity (operation)		Class TX (with Tunnel) [EN 50125-3]
Altitude		Class AX [EN 50125-3] < 2000 m above sea level
IP classification		IP67
Lightning		Separation of interfaces according [EN50124-1]
Degree of pollution		[EN 50124-1] PD4 [EN 50125-3] 4B1, 4C3, 4S3
Shock and Vibration		[EN50125-3]
EMC/EMI		[EN 50121-4] [EN 50238-3] (Rolling Stock)

References

India

Taiwan Rail Administration (TRA)

Germany

Deutsche Bahn (DB)

All References

Axle Counter Az LS

Hitachi Rail's out of the box axle counter system

Axle counter system Az LS

Simple system architecture

No indoor equipment

Track occupacy information directly at trackside (relay interface)

Maximum availability

Vital 2oo2 architecture according to SIL4

Double cutting (2 safety relays)

Robust wheel detection

Wheel detection cannot be disturbed or falsified by

neither coins, keys, safety boots nor other metal objects

axle oscillation and small wheel flanges

Proven

More than 150,000 wheel sensors in SIL4 application in main line and urban rail

Easy track maintenance

Top mark clearance for the wheel sensor

Wheel sensor mounting over the sleeper

Tamping and grinding over mounted

Infrastructure and operating costs

Hitachi Rail Az LS guarantees stable long-term performance of the railway infrastructure assets

CAPEX

No investment in indoor equipment

Track occupancy status directly at trackside

OPEX

Maximum line availability

Virtually maintenance free

Line availability

Custom-tailoring of the availability of the system to the concrete need, keeping the recovery time after a service affecting failure well below threshold.

Availability engineering comprises:

Versatile

Due to the modular architecture, Hitachi axle counters integrate seamlessly into any signalling system architecture, no matter if centralised or decentralised.

Successful cases for any application:

Training

Know-how transfer scalable to any investment policy.

Rail Academy trains: