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Speed Sensor with Current or Voltage Output GEL 2475

speed-sensor

General

  • pointerApplication approved speed sensor based on magnetic
    measurement principle
  • pointerMaintenance- and wear-free operation due to non-con-
    tact measurement of rotation
  • pointerSuitable for ferromagnetic target wheels
  • pointerSafe detection of slow rotation from 0 Hz without pulse
    loss and for high-speed rotation up to 25 kHz
  • pointerTwo channels shifted by 90º provide the direction of ro-
    tation
  • pointerRobust and compact stainless steel housing suitable for
    harsh application
  • pointerConstant duty output signals
  • pointerCustomized cable fittings

Features

  • pointerModul target wheel 1.00 to 3.50
  • pointerMeasuring range 0 Hz to 25 kHz
  • pointerTemperature range -40 to +120 ºC
  • pointerProtection class IP 68
  • pointerType testing according to EN 50155

Advantages

  • pointerCurrent output signals unsusceptible to electromagnetic
    disturbances
  • pointerCable break monitoring by current output or voltage out-
    put with standstill voltage
  • pointerMaintenance-free due to significant measuring distance
    (air gap up to 3 mm)

Fields of application

  • pointerRail vehicles
    -   Traction control
    -   Anti-slip
    -   Anti-skid
  • pointerAutomation
    -   Measurement of speed and positions at gears,
        motors and roller

Technical data

Signal pattern D- H- S- V-
Electrical data
Supply voltage VS
(reverse polarity protected
10 to 30 V DC
Current consumption per channel
IS (without load)
≤ 30 mA
Output signal (short circuit proof) square-wave signals
Output signal high(1) ≥ VS - 1.8 V ≥ VS - 1.0 V
Output signal level low(1) ≤ 1.5 V ≤ 1.0 V
Output current per channel ≤ 20 mA
Input frequency target wheel 0 to 25 kHz
Output frequency 0 to 25 kHz
Duty(depends on measuring scale and air gap) 50% ± 5%
Phase shift typ. 90º - typ. 90º
Slew rate (2 m cable) ≥ 10 V / µs
Electromagnetic compatibility rail vehicles(EN 50121-3-2)
industrial applications (EN 61000-6-1 to 4)
Insulation 500 V AC (EN 60439-1)
Mechanical data
Module m target wheel 1.00 / 1.25 / 1.50 / 1.75 / 2.00 / 2.25 / 2.50 / 3.50
Permissible air gap (for module m)(2) 0.2 to 3.0 mm
Width of target wheel ≥ 10 mm (smaller ones on request)
Form of target wheel involute gear as per DIN 867, rectangular gear 1:1 or slotted disk (on
request)
Material of target wheel ferromagnetic steel
Operating and ambient temperature -40 ºC to +120 ºC
Storage temperature -40 ºC to +120 ºC
Protection class IP 68
Vibration resistance EN 61373 cat. 3
Shock resistance EN 61373 cat. 3
Type test EN 50155
Housing material sensor stainless steel
Weight sensor (2 m cable) 650 g
Electrical connection
Cable Cable halogen free and screened (specification on request), cable outlet straight
Cable length ≤ 100 m
Cable diameter 8.0 mm 8.2 mm
Cable cross section 12 x 0.34 mm2 6 x 1.0 mm2
Cable type LK1076 LK1069
Cable radius static / dynamic 24 mm / 41 mm

Technical data

Signal pattern X- DI VI DL
Electrical data
Supply voltage VS
(reverse polarity protected
10 to 30 V DC 10 to 20 V DC 10 to 30 V DC
Current consumption per channel
IS (without load)
≤ 30 mA - < 12 mA
Output signal (short circuit proof) square-wave signals
Output signal high(1) ≥ VS - 1.0 V typ. 14 mA ≥ VS - 1.8 V
Output signal level low(1) ≤ 1.0 V typ. 7 mA ≤ 1.5 V
Output current per channel ≤ 20 mA ≤ 16 mA ≤ 10 mA
Input frequency target wheel 0 to 25 kHz 0.004 to 20 kHz
Output frequency 0 to 25 kHz 0.004 to 20 kHz
Duty(depends on measuring scale and air gap) 50% ± 5% 50% ± 10%
Phase shift typ. 90º
Slew rate (2 m cable) ≥ 10 V / µs ≥ 6 V / µs; RB = 560 Ώ ≥ 4 V / µs
Electromagnetic compatibility rail vehicles(EN 50121-3-2)
industrial applications (EN 61000-6-1 to 4)
Insulation 500 V AC (EN 60439-1)
Mechanical data
Module m target wheel 1.00 / 1.25 / 1.50 / 1.75 / 2.00 / 2.25 / 2.50 / 3.50
Permissible air gap (for module m)(2) 0.2 to 3.0 mm
Width of target wheel ≥ 10 mm (smaller ones on request)
Form of target wheel involute gear as per DIN 867, rectangular gear 1:1 or slotted disk (on
request)
Material of target wheel ferromagnetic steel
Operating and ambient temperature -40 ºC to +120 ºC
Storage temperature -40 ºC to +120 ºC
Protection class IP 68
Vibration resistance EN 61373 cat. 3
Shock resistance EN 61373 cat. 3
Type test EN 50155
Housing material sensor stainless steel
Weight sensor (2 m cable) 650 g
Electrical connection
Cable Cable halogen free and screened (specification on request), cable outlet straight
Cable length ≤ 100 m
Cable diameter 8.2 mm 8.3 mm 8.0 mm
Cable cross section 6 x 1.0 mm2 4 x 1.0 mm2 12 x 0.34 mm2
Cable type LK1069 LK10741 LK1076
Cable radius static / dynamic 24 mm / 41 mm 25 mm / 42 mm 24 mm / 41 mm

Technical data

Signal pattern HL DM VM
Electrical data
Supply voltage VS
(reverse polarity protected
10 to 30 V DC 10 to 20 V DC
Current consumption per channel
IS (without load)
< 12 mA
Output signal (short circuit proof) square-wave signals
Output signal high(1) ≥ VS - 1.8 V
Output signal level low(1) ≤ 1.5 V ≤ 1.5 V(2)
Output current per channel ≤ 10 mA ≤ 15 mA
Input frequency target wheel 0.004 to 20 kHz 0.001 to 8 kHz
Output frequency 0.004 to 20 kHz 0.001 to 8 kHz
Duty(depends on measuring scale and air gap) 50% ± 10%
Phase shift typ. 90º
Slew rate (2 m cable) ≥ 4 V / µs
Electromagnetic compatibility rail vehicles(EN 50121-3-2)
industrial applications (EN 61000-6-1 to 4)
Insulation 500 V AC (EN 60439-1)
Mechanical data
Module m target wheel 1.00 / 1.25 / 1.50 /
1.75 / 2.00 / 2.25 /
2.50 / 3.50
2.00
Permissible air gap (for module m)(3) 0.2 to 3.0 mm
Width of target wheel ≥ 10 mm (smaller ones on request)
Form of target wheel involute gear as per DIN 867, rectangular gear 1:1 or slotted disk (on
request)
Material of target wheel ferromagnetic steel
Operating and ambient temperature -40 ºC to +120 ºC -40 ºC to +85 ºC
Storage temperature -40 ºC to +120 ºC
Protection class IP 68
Vibration resistance EN 61373 cat. 3
Shock resistance EN 61373 cat. 3
Type test EN 50155
Housing material sensor stainless steel
Weight sensor (2 m cable) 650 g
Electrical connection
Cable Cable halogen free and screened (specification on request), cable outlet straight
Cable length ≤ 100 m
Cable diameter 8.0 mm 6.3 mm 7.1 mm
Cable cross section 12 x 0.34 mm2 2 x 3 x 0.5 mm2 4 x 0.5 mm2
Cable type LK1076 LK1083/LK1084 LK1081
Cable radius static / dynamic 24 mm / 41 mm 19 mm / 32 mm 21 mm / 36 mm

Signal pattern

signal_pattern5-6 signal_patternDDL signal_patternX signal_patternS
signal_patternVM signal_patternDM signal_patternHHL
Explanation
x- = voltage output
xI = current output
xL = voltage output (low current)(1)
xM = voltage output (standstill voltage)
1, 2 = channel 1, channel 2
̅1, ̅2 = inverse channel 1, inverse channel 2
signal_td = galvanically isolated
VS = supply voltage

Signal level

voltage_output_SVX voltage_output_DMVM current_output_DIVI
voltage_output_DHHL sensor

When using the current output, the resistor to be connected must not exceed a specific value:
RB,max = (VS– 4 V) / Imax
with VS = 10 to 20 V DC and Imax = 16 mA
Example for VS = 15 V:
RB,max = 11 V / 16 mA = 690 Ω

Electrical connection,
Dimensions

Electrical connection
Signal D- H- S- V- X- DI VI DL HL DM VM
Channel 1 ye ye ye ye ye bl bl ye ye wh bl
Channel 2 wh wh wh wh wh gn gn wh wh gn wh
Channel ̅1 bk bk bk
Channel ̅2 br br br
GND (0 V) bl gr bl gr bl bl bl bl gr bl gr bk vi gn
+VS (10 to 30 V DC) rd pi rd pi rd rd rd rd pi rd pi
+VS (10 to 20 V DC) rd ye rd rd or or
Cable / Screen 1 / 1 1 / 1 1 / 1 1 / 1 1 / 1 1 / 1 1 / 1 1 / 1 1 / 1 2 / 2 1 / 1
bk = black, bl =blue, br = brown, gn = green, gr = grey, or = orange, pi = pink, rd = red, vi = violet, ye = yellow, wh = white
dimension

Assembly drawing

assembly_drawing

Please observe the EMC-reference into the operating instruction!

Permissible air gap (for module m)
D- H- S- V- X- DI VI DL HL DM VM
m = 1.0 0.2 to 1.4 mm 0.2 to 0.9 mm
m = 1.5 0.2 to 1.8 mm 0.2 to 1.5 mm
m = 2.0 0.2 to 2.2 mm 0.2 to 2.0 mm 0.2 to 2.2 mm
m = 2.5 0.2 to 2.8 mm 0.2 to 2.2 mm
m = 3.5 0.2 to 3.0 mm 0.2 to 2.8 mm

Type code

Type code GEL 2475

type_code

Notes: For a special customized version a Y-No. will be created. A special version 2475Yxxx is manufactured according to a drawing or application description and could differ from the technical standard specification.

Example for customized cable connections

Encoder end

encoder_end

Cable end

cable_end