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FAH52

FAH52

FAH52

  • Typical applications: Rail Technology (Light & Heavy Rail) and Special Machinery (Mining)

  • Frequency measurement with ferromagnetic scan objects using the Hall-effect principle

  • Lifecycle-cost optimised: Wear- and maintenance-free due to non-contact scanning, high durability due to robust design

  • Robust design for risk-free installation and extreme environmental conditions

  • Well-suited for safety applications, e.g., fire protection according to EN 45545

  • Measuring channels can be galvanically isolated in a housing as a voltage signal or current output signal respectively

  • Reliable rotational direction detection or outage detection and monitoring

Speed sensors of type FAH52 are non-contacting 1- or 2-channel speed encoders with a flange and sensor tube. They measure frequency in accordance with the Hall-effect principle.

Electrical connection

Supply voltage

FAH52, FAHZ52, FAHS52, FAHQ52: 9 ... 32 VDC
FAHD52: 2 x 9 ... 32 VDC
FAHI52: 2 x 9 ... 30 VDC
FAHJ52: 9 ... 30 VDC

Nominal voltage

FAHZ52, FAHS52, FAHQ52, FAHJ52: 15 VDC
FAHD52, FAHI52: 2 x 15 VDC

Current consumption

FAHZ52, FAHS52, FAHQ52, FAHD52: < 20 mA (without output signal current)
FAHI52: 2 x 8.2 mA / 14.4 mA (depending on signal level)
FAHJ52: 1 x 8.2 mA / 14.4 mA

Reverse voltage protection

Yes

Overvoltage protection

Yes

Recommended conductor length

< 100 m

Conductor cross-section

Standard: 0.33 mm², shielded

Electrical output

Measuring channels

FAHZ52, FAHQ52: 2 measuring channels
FAHS52: 2 measuring channels plus status channel
FAHD52, FAHI52: 2 galvanically isolated measuring channels
FAH52, FAHJ52: 1 measuring channel

Output signals and signal form

FAHZ52, FAHI52, FAHD52: 2 square wave signals
FAHS52: 2 square wave signals, 1 status signal
FAHQ52: 2 square wave signals, 2 inverted square wave signals
FAH52, FAHJ52: 1 square wave signal

Output driver

Voltage signal output: Push-pull output stage
Current signal output: current regulation

Duration - short-circuit resistance

Yes

Galvanic isolation

Types FAHD and FAHI only

Output level Low

Sensors with voltage signal output:
Per output: ≤ 0.8 V @ 15 VDC, 10 mA, 24°C
Sensors with current signal output:
Per output: 8.2 mA +/- 4% @ 15 VDC, RL = 475 Ω, 24°C

Output level High

Sensors with voltage signal output:
Per output: ≥ +UB - 1.6 V @ 15 VDC, 10 mA, 24 °C
Sensors with current signal output:
Per output: 14.4 mA +/- 4% @ 15 VDC, RL = 475 Ω, 24 °C

Output current (sink)(only voltage signal output)

Per output: max. -50 mA 1

Output current (load)(only voltage signal output)

Per output: max. 50 mA 1

Internal resistance Ri

Sensors with voltage signal output: 45 Ω

Rise time

Voltage signal output: ≥ 10 V/μs; current signal output: ≥ 1 mA/μs

1 The total of the output currents may not exceed 100 mA.

Signal detection

Measuring principle

Hall-effect principle

Frequency type

Standard

F0

Frequency range

0.2 ... 20,000 Hz

0 ... 25,000 Hz

Scanning object

Ferromagnetic materials,
Toothed wheel: Module m1 to m3 (other sizes on request))
tooth face width > 7 mm (spur gear DIN 867)
Bore hole: Ø ≥ 5 mm, web ≥ 2 mm, depth ≥ 4 mm
Groove: ≥ 4 mm, web ≥ 2 mm, depth ≥ 4 mm

optimised for scanning measurement objects with symmetrically interrupted surfaces, e.g., toothed wheels and pulse gears

optimised for scanning objects with asymmetrically interrupted surfaces
holes, screw heads and grooves

Output signal is issued faithfully according to the mechanical edges of the scanning object

Ideal for standstill detection and monitoring

Distance scan object

0.2 ... 3 mm; recommended: 1.0 ± 0.5 mm for m1.5 ... m3 | 0.7 ± 0.4mm @ m1...m1.25

Suitable scan object

Ferromagnetic materials

Duty cycle

50% ± 10%

Phase shift

90° ± 10% @ m1.5...m3 | 90° ± 15 % @ m1...m1.25

Environmental influences

Operating temperature

-40 … +120°C

Storage temperature

Recommended: -25 ... +70°C; max.: -40 ... +105 °C (max. peak values within 30 days/year at relative humidity from 5...95%)

Degree of protection

Housing: IP66/IP68/IP69
Connection: IP66/IP68; only -XGT: IP69

Vibration resistance

IEC 61373, 30 g @ 10...500 Hz (Random)

Shock resistance

IEC 60068-2-27, 100 g @ 6 ms

Climatic test

IEC 60068-2-1/-2/-30

Interference immunity

IEC 61000-4-2, Lev. 3 (ESD)
IEC 61000-4-3, 10 V/m (HF - field)
IEC 61000-4-4, Lev. 3 (Burst)
IEC 61000-4-5, Lev. 2 (Surge)
IEC 61000-4-6, 10 Veff (HF - conducted)
IEC 61000-6-2
IEC 60553, 3 Veff (LF - conducted)

Interference emission

IEC 61000-6-4, EN 55011

Insulation

500 VAC, 50 Hz @ 1 min (≥ 2 kV for FAH[..] upon request )

Other standards

EN 50155, EN 50121-3-2, EN 45545, EN 55016 EMC A

Mechanical properties

Material

Flange: Stainless steel
Measuring surface: Stainless steel

Mounting

Via flange housing

Length

See customer drawing

Installation position

Determined by rotational direction definition; defined by fixing pin

Weight

≥ 190 g (depends on connection)

Pressure resistance

5 bar (measuring surface)

Part code FAH52

Measuring principle

H

Hall

Measuring principle
extension

1 Output signal (voltage)

Z

2 Output signal (voltage), galvanic coupling

D

2 Output signal (voltage), galvanically isolated

I

2 Output signal (current), galvanically isolated

J

1 Output signal (current)

S

2 Output signal (voltage), galvanic coupling with status output
(e.g., direction of rotation detection, desired definition specific to customer)

Q

4 Output signal (voltage), galvanic coupling

R

4 Output signal (voltage), galvanically isolated

Design, material

52-

Flange, stainless steel sensor tube

Nominal length

11-

L1 = 29 mm

Connection outlet

No identifier: straight connection outlet

S

Lateral connection outlet

Conductor protection

X

Standard conductor end (without protective tube)

XV

Double conductor cable jacket, FRNC

XP

Corrugated pipe, polyamide

XGT

Protective tube, reinforced with textile fibres

Jacket length

05-

Jacket length 2.0 m, halogen-free

07-

Jacket length 5.0 m, halogen-free

08-

Jacket length 7.5 m, halogen-free

09-

Jacket length 10.0 m, halogen-free

Module
(adjustment of the sensor to your gear module at the factory)

No identifier: Module m2

M10

Module m1

M12

Module m1.25

M15

Module m1.5

M25

Module m2.5

M30

Module m3

Frequency type

No identifier: “Frequency type, standard”

F0

Frequency type F0 (starting at 0 Hz)

Shielding

No identifier: Shield applied to sensor housing

S0

Shield applied to sensor housing

FA

_ _

_ _

_ _-

_ _-

_ _

_ _

_ _-

_ _

_ _

Example: FAHZ52-11-X07

Customer-specific types

If you don’t find anything suitable among our standard types, we’ll be happy to develop a tailored solution with you to meet your requirements (-P types). They also meet the abovementioned standards thanks to our type-approved modular kits.