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Singleturn absolute rotary encoder CVS78E

  • Up to 16 Bit singleturn
  • ATEX approval
  • IECEx approval
  • Flameproof enclosure
  • Removable connection cap

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 or Pepperl+Fuchs AG, also apply to Pepperl+Fuchs SE.

Download the complete datasheet as a PDF:

Datasheet excerpt: Technical data of  CVS78E

General specifications
Detection typephotoelectric sampling
Device typeSingleturn absolute rotary encoder
Functional safety related parameters
MTTFd25 a
L107.7 E+9 at 3000 rpm
Electrical specifications
Operating voltage10 ... 30 V DC
No-load supply currentmax. 350 mA
Linearity± 2 LSB at 16 Bit, ± 1 LSB at 13 Bit, ± 0,5 LSB at 12 Bit
Output codebinary code
Code course (counting direction)cw ascending (clockwise rotation, code course ascending)
cw descending (clockwise rotation, code course descending)
Interface typeCANopen
Single turnup to 16 Bit
Overall resolutionup to 16 Bit
Transfer ratemax. 1 MBit/s
Standard conformitycommunication profile: DS 301
Device profiles: DS 406 and DS 417 , programmable according to class 2
Cable∅ 10.2 mm, Radox 9 x 0.5 mm2
Terminal compartmentsee ordering information
Standard conformity
Degree of protectionDIN EN 60529, IP66
Climatic testingDIN EN 60068-2-78 , no moisture condensation
Emitted interferenceEN 61000-6-4:2007/A1:2011
Noise immunityEN 61000-6-2:2005
Shock resistanceDIN EN 60068-2-27, 100 g, 3 ms
Vibration resistanceDIN EN 60068-2-6, 10 g, 10 ... 2000 Hz
Approvals and certificates
IECEx approval
Equipment protection level GbIECEx ITS 15.0061X
ATEX approval
Equipment protection level GbITS 15 ATEX 18372X
Ambient conditions
Operating temperature-40 ... 70 °C (-40 ... 158 °F)
Storage temperature-40 ... 85 °C (-40 ... 185 °F)
Mechanical specifications
Combination 1housing: anodized aluminum
flange: anodized aluminum
shaft: Stainless steel 1.4404 / AISI 316L
Combination 2 (Inox)housing: Stainless steel 1.4404 / AISI 316L
flange: Stainless steel 1.4404 / AISI 316L
shaft: Stainless steel 1.4404 / AISI 316L
Massapprox. 2600 g (combination 1)
approx. 3900 g (combination 2)
Rotational speedmax. 3000 min -1
Moment of inertia180 gcm2
Starting torque≤ 4 Ncm
Shaft load
Axial60 N
Radial80 N
General information
Use in the hazardous areasee instruction manuals


ECLASS 13.027270502
ECLASS 12.027270502
ECLASS 11.027270502
ECLASS 10.0.127270502
ECLASS 9.027270502
ECLASS 8.027270502
ECLASS 5.127270502
ETIM 9.0EC001486
ETIM 8.0EC001486
ETIM 7.0EC001486
ETIM 6.0EC001486
ETIM 5.0EC001486
UNSPSC 12.139121527

Details: CVS78E


Absolute encoders deliver an absolute step value for each angle setting. All these values are represented by code samples on one or more code disks which are sampled by a photoelectric array.

The absolute encoder has a maximum basic resolution of 65536 steps per revolution (16 Bits).

The integrated CAN bus interface of the absolute encoder supports all DeviceNet functions. The following operating modes can be programmed, and can selectively be turned on or off:

  • Polled mode

  • Cyclic mode

  • Sync mode

The device is designed for shaft mounting and is available in servo flange or clamping flange design.

The bus electronics module is integrated into the removable housing cover. This makes it possible to mount or replace the new rotary encoders and the matching bus electronics separately during installation or service.

Product Documentation: CVS78E

Language Selection:
Safety and Security DocumentationLanguageFile TypeFile Size
Instruction manualENGPDF167 KB

Approvals: CVS78E

Language Selection:
CertificatesCertificate No.LanguageFile TypeFile Size
EU Intertek ATEX Category (2) G DITS15ATEX18372XALLPDF931 KB
Worldwide Intertek II 2GDIECEx ITS 15.0061XALLLINK---
Declaration of Conformity
EU Declaration of Conformity (P+F)TDOC-2495DENGENGPDF268 KB