Serviceline Industrial Sensors
Serviceline Explosion Protection

Read head WCS3B-LS221

  • RS-485 interface
  • Non-contact, absolute position encoder
  • Automatic detection of dirt accumulation

Please note: All product-related documents, such as certificates, declarations of conformity, etc., which were issued prior to the conversion under the name Pepperl+Fuchs GmbH, also apply to Pepperl+Fuchs AG.

Download the complete datasheet as a PDF:

Datasheet excerpt: Technical data of  WCS3B-LS221

Product Description
Read head, RS-485 interface,
with RS-485 termination resistor
General specifications
Passage speed≤ 12.5 m/s
Measuring rangemax. 314.5 m
Free tolerances to code railhorizontal: 31 mm ( ± 15.5 mm )
vertical: 28 mm ( ± 14 mm )
Resolution± 0.4 mm (1,250 positions/m)
Functional safety related parameters
MTTFd198 a
Mission Time (TM)20 a
Diagnostic Coverage (DC)0 %
Indicators/operating means
Operation indicatorLED green: power on
Data flow indicatorLED yellow: data communication active
Error indicatorLED red
flashing: read head outside of code rail
solid on: internal diagnostic test failed
Electrical specifications
Operating voltage10 ... 30 V DC
Power consumption2 VA
Interface typeRS 485 interface
Data output codebinary code
Protocol1 , 2
Transfer rate62.5 kBit/s
Terminationwith RS 485 termination
Standard conformity
Emitted interferenceDIN EN 61000-6-4 , DIN EN 12015
Noise immunityDIN EN 61000-6-2 , DIN EN 12016
Shock resistanceDIN EN 60068-2-27, half sine 30 g, 18 ms
Vibration resistanceDIN EN 60068-2-6, sine, 5 g, 10 - 2000 Hz, 10 cycles
Approvals and certificates
CSA approvalcCSAus Certified, General Purpose
Class 2 power source
CCC approvalCCC approval / marking not required for products rated ≤36 V
Ambient conditions
Operating temperature0 ... 60 °C (32 ... 140 °F)
Storage temperature-40 ... 85 °C (-40 ... 185 °F)
Relative humidity90 % , noncondensing
Mechanical specifications
Connection type5-pin, M12 x 1 connector
Degree of protectionIP54
HousingABS , PC (Polycarbonate)
Mass500 g
General information
Ordering informationMounting plate included with delivery

Documents: WCS3B-LS221

ManualsLanguageFile TypeFile Size
Manual WCS ElectricalENGPDF4782 KB
Manual WCS MechanicalENGPDF8417 KB
Handbuch WCS ElektrikGERPDF4783 KB
Handbuch WCS MechanikGERPDF7649 KB

Approvals+Certificates: WCS3B-LS221

Statements of complianceCertificate No.File TypeFile Size
/doc/doc0909d.pdfDOC-0909DPDF145 KB
Canada USA CSA Ordinary Location1007121PDF99 KB

Commissioning: WCS3B-LS221

Commissioning examplesLanguageFile TypeFile Size
Configuration instructions, WCS3B reading head with RS485 interfaceENGPDF1015 KB
Konfigurationsanleitung, WCS3B-Lesekopf mit RS485-SchnittstelleGERPDF686 KB

Associated Products: WCS3B-LS221

Transparent protective case and seal for WCS3B readerfa
Mounting plate for reading heads WCS2 and WCS3, Universal mounting plate for all reading heads WCS2... and WCS3...fa