Gefran WPA-S Data Sheet
WPA-S
CONTACTLESS MAGNETOSTRICTIVE LINEAR POSITION TRANSDUCER
(SYNCHRONOUS SERIAL OUTPUT)
Main characteristics
• Optimised mechanical structure
• Strokes from 50 to 4000 mm
• Fast installation by mean of steel brackets
• Sliding or floating magnetic cursor
• Synchronous Serial Interface direct to controllers
• Output data resolution available from 0.5 to 40 μm
• Data format: binary or Gray code; incremental/
decremental
• Power supply 10...32 Vdc
• Resistance to vibration (DIN IEC68T2/6 15g)
• IP67 protection
• Work temperature: -30...+90°C
• Electromagnetic compatibility EMC 2014/30/EU
• Compliant to the directive RoHS 2011/65/EU
Contactless linear position transducer with HYPERWAVE
magnetostrictive technology, with RS422-SSI digital output interface.
The absence of electrical contact on the cursor eliminates all wear
and guarantees almost unlimited life.
High performance in terms of environmental IP protection and EMC
immunity.
TECHNICAL DATA
Model from 50 to 4000 mm
Measurement taken displacement
Position read sampling time
(typical)
Shock test DIN IEC68T2-27 100g - 11ms - single shock
Vibrazioni DIN IEC68T2-6 15g / 10...2000Hz
Velocità di spostamento ≤10 m/s
Max. acceleration ≤ 100 m/s
Output data resolution available 0.5...40 μm
Cursor (see note)
Working temperature -30...+90°C
Storage temperature -40...+100°C
Coefficient of temperature 20 ppm FS / °C
Protection IP67
Note 1) For stroke > 2500mt use sliding or floating cursors with
max. distance of 4mm
1 ms
2
displacement
Sliding cursor
Floating separate cursor
ELECTRICAL DATA
Output signal
Data length 24 - 25 bit
Nominal power supply 10...32 Vdc
Max. power ripple 1Vpp
Max. input 50mA
Output load RS422/485 standard
Electrical isolation
Protection against polarity inversion
Protection against overvoltage Yes
Self-resetting internal fuse Yes
Synchronous Serial (SSI);
Binary/Gray;
Incremental/Decremental
500V (*)
(D.C. supply/earth)
Yes
High accuracy of the mesurement with reference to the non
linearity, repeatability and hysteresis. High resistance to vibrations,
mechanical shocks for use in a harsh industrial environment.
MECHANICAL DIMENSIONS
8
4
A
32
Closing force
< 1.1 Nm
16A
13
A
C.E. = Model
58 96
(*) it includes a 50V 2J voltage suppressor
ELECTRICAL / MECHANICAL DATA
Model
Electrical
stroke (E.S.)
Independent
linearity
Max.
dimensions (A)
Repeatability mm < 0,01 (limited by the resolution of the output value)
Hysteresis < ± 0,005% FS (min 0,010 mm)
Sampling time ms 1 (for stroke from 1000) 2 (for stroke from 1100 to 2000) 4 (for stroke >2000)
50 75 100 130 150 175 200 225 300 250 350 360 400 450 500 550 600 650 700 750 800 850 900 950 1000 1100 1200 1250 1300 1400 1500
1750 2000 2500 2750 3000 3250 3500 3750 4000
mm Model
±
%F.S.
mm Model + 154 mm
Typical : ≤ ± 0.02% FS with oating cursor (value depending on the distance between the cursor and the sensor
Typical : ≤ ± 0,01 %FS (min ± 0,060 mm) with sliding cursor
body)
ELECTRICAL CONNECTIONS
OUTPUT WPA-S-B OUTPUT WPA-S-C OUTPUT WPA-S-D OUTPUT WPA-S-H OUTPUT WPA-S-F/R
Function WPA-S-B WPA-S-C WPA-S-D WPA-S-H WPA-S-F WPA-S-R CAV00X
6-pin M16 8-pin M16 7-pin M16 8-pin M12 Cable output PUR cable
output
Data - 1 5 1 5 Orange Pink Green
Data + 2 2 2 2 Orange / White Blue Gray
Clock + 3 1 3 3 Green / White Gray Pink
Clock - 4 3 4 1 Green Yellow Yellow
Power supply + 5 7 5 7 Blue / White Green Brown
Power supply GND 6 6 6 6 Blue Brown Blue
n.c. - 8 7 8 - - White
n.c. - 4 - 4 - - Red
The transducer case must be grounded with the cable sheathing on the control system side only.
Optional 8-pin
cable
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