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Compact solid shaft rotary encoder with SSI and IO-Link
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The AV3650M rotary encoder is an absolute magnetic single- and multi-turn rotary encoder, which impresses with its extremely compact design. It is particularly robust and resistant to vibrations.  Thanks to its high protection class up to IP67 and a temperature range of -40° C … +85° C, it is also suitable for demanding industrial applications. The particularly small design with a diameter of only 36 mm predestines the rotary encoder for use in applications with limited installation space. The analog current or voltage outputs can be adjusted to any measuring range thanks to the teach-in.

  • absolute wear-free magnetic encoder
  • Multiturn without gearbox and without battery
  • Interface SSI, IO-Link
  • extremely compact and very robust design
  • IP67 protection class
  • extensive temperature range -40 … 85° C
  • optimal price-performance ratio
  • Industry 4.0 ready

Mechanical data

Feature Technical data Additional information
Shaft rustproof stainless steel  
Flange Aluminum  
Housing zinc die-casting  
Speed 6000 rpm with protection class IP65 with mounting type M3, M4, transient for ≤10 min
  3000 rpm with protection class IP65 with mounting type M3, M4, continuous operation
  4000 rpm with protection class IP67 or mounting type M1, M2, transient for ≤10 min
  2000 rpm with protection class IP67 or mounting type M1, M2, continuous operation
Starting torque <0.007 Nm with protection class IP65 with mounting type M3, M4
  <0.01 Nm with protection class IP67 with mounting type M3, M4
  <0.01 Nm with mounting type M1, M2
Shaft load rating 40 N radial, mounting type M3, M4
  20 N axial, mounting type M3, M4
  80 N radial, mounting type M1, M2
  40 N axial, mounting type M1, M2
Cable sheath PUR ø6.2 ±0.2 mm, with IO-Link
  PUR ø5.5 ±0.2 mm, with SSI
Cable bending radius 60 mm static, with IO-Link
  130 mm dynamic, with IO-Link
  45 mm static, with SSI
  65 mm dynamic, with SSI
Mounting type clamping flange joint ø58 mm mounting type M1
  servo flange ø58 mm mounting type M2
  clamping flange joint ø36 mm mounting type M3
  servo flange ø36 mm mounting type M4
Weight ~0.2 kg  

Electrical data

IO-Link interface

Feature Technical data Additional information
Operating voltage 18 … 30 V DC reverse-polarity protected
Current consumption ≤30 mA  
Power input ≤300 mW without load
Parameter storage 104 cycles also applies to calibration operations
Interface IO-Link Version 1.1 according to IEC 61131-9
Parameter SIKO Standard Profile IOL
  Smart Sensor Profile IOLssp
Type of connection 1x M12 connector (A-coded) 4-pole, 1x pin, E12E connection type

SSI interface

Feature Technical data Additional information
Operating voltage 10 … 30 V DC reverse-polarity protected
Current consumption ≤40 mA without load
Power input ≤300 mW without load
Parameter storage 104 cycles also applies to calibration operations
Digital inputs 2 calibration inputs, rotation direction. Both inputs active at high (comparator).
Input signal level high ≥60 % from +UB  
Input signal level low ≤30 % from +UB  
SSI clock speed input 50 kHz … 2 MHz  
Monoflop time ≤15 µs  
Interface SSI line driver according to RS485
Cycle time 2 ms  
Type of connection 1x M12 connector (A-coded) 8-pole, 1x pin, E12E connection type
  open cable end E1 connection type

System data

Feature Technical data Additional information
Scanning magnetic  
Resolution 12 bit single-turn, 4096 steps/rotation, only with SSI
  13 bit single-turn, 8192 steps/rotation, only with SSI
  14 bit single-turn, 16384 steps/rotation
System accuracy ±1°  
Repeat accuracy ±0.2°  
Measuring range 1 revolution(s) single-turn
  4096 revolution(s) 12 bit, only withi SSI
  65536 revolution(s) 16 bit, only with SSI
  262144 revolution(s) 18 bit, only with IO-Link
  16777216 revolution(s) 24 bit, only with SSI

Ambient conditions

Feature Technical data Additional information
Ambient temperature -40 … 85 °C  
Storage temperature -40 … 85 °C  
Relative humidity 93 % condensation inadmissible
EMC DIN EN 61326-1 immunity requirement of the industry
  DIN EN 61000-4-2, -3, -6, -8 interference resistance / immission
  DIN EN 61000-4-4 burst
  DIN EN 61000-6-2 interference resistance / immission
  DIN EN 61000-6-4 emitted interference / emission
  DIN EN 55011 Class A radiation emission / radio interference suppression
Protection category IP65 EN 60529
  IP67 EN 60529
Shock resistance 2500 m/s2, 6 ms EN 60068-2-27
Vibration resistance 300 m/s2, 10 … 2000 Hz EN 60068-2-6

For more informayion, click here!

Data sheet

Pin assignment

SSI, E12E

Signal PIN
GND 1
+UB 2
SSI cycle + 3
SSI cycle - 4
SSI data + 5
SSI data - 6
Calibration input 7
Rotational direction 8

IO-Link, E12E

Signal PIN
L+ (+UB) 1
nc 2
L- (GND) 3
C/Q 4

SSI, E1

Signal Color
GND white
+UB brown
SSI cycle + green
SSI cycle - yellow
SSI data + gray
SSI data - pink
Calibration input blue
Rotational direction red

Industry 4.0

In most cases, data exchange with the absolute rotary encoder is limited to the exchange of process data. In addition to the process data, the rotary encoder provides additional information with an IO-Link interface that can be evaluated for condition monitoring up to predictive maintenance:

Process Data Smart Value Smart Function
Actual position Temperature Condition monitoring
Speed Limit speed Application overload
  Operating hours counter Operating time
  Acceleration events Activation of PLC functions
  Speed events Activation of PLC functions
  Electronic type label Asset management

Scope of delivery

  • WV3650M
  • Quick Start Guide