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ESM78E-E Multiturn absolute rotary encoder

Key Benefits at a Glance

  • Up to 30 Bit multiturn
  • ATEX approval
  • IECEx approval
  • Flameproof enclosure
  • Removable connection cap

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Approval
Approval
Product Compliance: Europe – CE
EtherCAT® interface
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.

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Technical data of ESM78E-E

Detection typephotoelectric sampling
Device typeMultiturn absolute rotary encoder
MTTFd25 a
L107.7 E+9 at 3000 rpm
Operating voltageUB10 ... 30 V DC
No-load supply currentI0max. 230 mA at 10 V DC
max. 100 mA at 24 V DC
Time delay before availabilitytv< 250 ms
Linearity± 2 LSB at 16 Bit, ± 1 LSB at 13 Bit, ± 0,5 LSB at 12 Bit
Output codebinary code
Code course (counting direction)programmable,
cw ascending (clockwise rotation, code course ascending)
cw descending (clockwise rotation, code course descending)
Interface typeEtherCAT®
CoE (CANopen over EtherCAT, according to CiA DS-301 and DS-406 device profile CiA)
Resolution
Single turnup to 16 Bit
Multiturnup to 14 Bit
Overall resolutionup to 30 Bit
Transfer rate10 ... 100 MBit/s
Terminal compartmentsee ordering information
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
IECEx approval
Equipment protection level GbIECEx ITS 15.0061X
ATEX approval
Equipment protection level GbITS 15 ATEX 18372X
Operating temperature-40 ... 70 °C (-40 ... 158 °F)
Storage temperature-40 ... 85 °C (-40 ... 185 °F)
Material
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
Use in the hazardous areasee instruction manuals
General Notes