Encoders without bearings - incremental Combination of sensor / magnetic wheel Max. 1024 pulses per revolution MDFK 08 Features –– Magnetic sensor with magnetic wheel –– Resolution max. 4096 steps –– Output signals A 90° B or A 90° B +N –– Output circuits: push-pull and RS422 –– Non-contact, wear-free sensing system –– High resistance to dirt –– Narrow mounting design MDFK 08 Technical data - electrical ratings Technical data - mechanical design Pulses per revolution 256...1024 Dimensions W x H x L 15 x 8.5 x 45.5 mm Interpolation 8‑fold, 16‑fold Shaft type Reference signal Zero pulse, width 90° ø6...43.5 mm (through hollow shaft) Output frequency ≤1.6 MHz (8-fold interpolation) ≤3.2 MHz (16-fold interpolation) Protection DIN EN 60529 IP 67 Operating temperature -25...+85 °C System accuracy ±0.5° Working distance <0.6 mm Jitter ≤15 % Fastening torque 0.4 Nm Resistance DIN EN 60068-2-6 Vibration 20 g, 10-2000 Hz DIN EN 60068-2-27 Shock 100 g, 6 ms 8...30 VDC Consumption w/o load ≤30 mA Switching current max. 50 mA Material Housing: PC Output stages Push-pull short-circuit proof Relative humidity 95 % Output signals A 90° B A 90° B, 0 Connection Cable 2 m Weight approx. 105 g Reverse polarity protection Yes, to GND Voltage drop Subject to modification in technic and design. Errors and omissions excepted. Voltage supply <2 VDC (I=20 mA) MDFK 08T Voltage supply 5 VDC ±5 % Consumption w/o load ≤15 mA Switching current max. RS422 specific Output stages RS422 Output signals A 90° B + inverted A 90° B, N + inverted Reverse polarity protection No Voltage drop RS422 specific 1 www.baumer.com/motion 14/1/2016 MDFK 08G Encoders without bearings - incremental Combination of sensor / magnetic wheel Max. 1024 pulses per revolution MDFK 08 Part number Sensor head - Push-pull Sensor head - RS422 MDFK 08G MDFK 08T Interface / Interpolation A/B / 8-fold A/B / 16-fold A/B/N / 8-fold A/B/N / 16-fold 2101 2124/N16 8124/N8 8124 7101 7105/N16 8101 8105/N16 Interface / Interpolation A/B + inv. / 8-fold A/B + inv. / 16-fold A/B/N + inv. / 8-fold A/B/N + inv. / 16-fold Magnetic wheel MIR10-P. . S 006 5Z8 025 1Z0 Bore diameter* ø6 mm ø5/8ʺ (15.875 mm) ø25 mm ø1ʺ (25.4 mm) Reference N Without reference magnet A With reference magnet 032.0.031 036.0.031 050.0.056 064.0.056 Number of poles 32 poles (Bore diameter max. 17.5 mm) 36 poles (Bore diameter max. 17.5 mm) 50 poles (Bore diameter max. 43.5 mm) 64 poles (Bore diameter max. 43.5 mm) The pulses are a result of the interpolation factor of the sensor head and the number of poles on the magnetic wheel. The table below shows as an example which sensor head and which magnetic wheel have to be combined in order to achieve a certain number of pulses. Other pulses are available on request. Sensor head MDFK 08 Magnetic wheel MIR10-P Interpolation factor 32 poles 36 poles 50 poles 64 poles 8 256 288 400 512 16 512 576 800 1024 2 www.baumer.com/motion 14/1/2016 Selection of sensor head / magnetic wheel Subject to modification in technic and design. Errors and omissions excepted. * Other bore diameter on request. Encoders without bearings - incremental Combination of sensor / magnetic wheel Max. 1024 pulses per revolution MDFK 08 Accessories Terminal assignment Mounting accessories Mounting angle for MDFK08 3-channel Output signals push-pull signals +Vs blue BU 0V black BK CHA white WH CHB cable data PUR 4 x 0.25 mm2 CHA CHB Push-pull A 90° B, N (3-channel) cable color brown BN CHN yellow YE CHB green GN CHA pink PK CHN white WH 3-channel version with zero-pulse (CHN) 2-channel version without zero-pulse signals +Vs 0V cable data PUR 5 x 0.14 mm , shielded RS422 CHA CHA inv. CHB RS422 A 90° B + inv. (2-channel) cable color brown BN signals +Vs green GN CHA pink PK CHA inv. yellow YE CHB gray GY CHB inv. white WH 0V CHB inv. cable data PUR 6 x 0.14 mm2 CHN RS422 A 90° B, N + inv. (3-channel) signals cable color brown BN +Vs CHN inv. green GN CHA red RD CHA inv. yellow YE CHB blue BU CHB inv. 3-channel-version with zero-pulse (CHN/CHN inv.) 3-channel-version with zero-pulse Rotational or linear direction 2-channel 3-channel pink PK CHN gray GY CHN inv. white WH 0V cable data PUR 8 x 0.14 mm2, shielded reference magnet for zero pulse mounting bracket CHA is leading CHB by 90° when rotating CW 3 www.baumer.com/motion Subject to modification in technic and design. Errors and omissions excepted. 2 14/1/2016 10134683 Push-pull A 90° B (2-channel) cable color brown BN Encoders without bearings - incremental Combination of sensor / magnetic wheel Max. 1024 pulses per revolution MDFK 08 Working distance ≤0.5 mm <1 mm <0.6 mm Axial misalignment Angular misalignment <3° <3° Dimensions 15 8.5 Sensor can also be mounted with self-tapping special screws (PT KA30) 4 www.baumer.com/motion 14/1/2016 10 Subject to modification in technic and design. Errors and omissions excepted. 45.5 2 25 2.5 12 5 3.5 Encoders without bearings - incremental Combination of sensor / magnetic wheel Max. 1024 pulses per revolution MDFK 08 Magnetic wheel without reference magnet MIR10-P with 32, 36 poles A ø30 ø56 A-A A ø 6 H7 ø53 M4 (2x) A 15 7 A-A 14 7 A M4 (2x) ø 30.5 MIR10-P with 50, 64 poles ø 25H7 0° 12 0° 12 Magnetic wheel with reference magnet MIR10-P with 32, 36 poles A ø40 ø56 A-A A ø6 H7 ø66 M4 (2x) A 15 6 15 6 A-A M4 (2x) ø 30.5 A MIR10-P with 50, 64 poles ø 25H7 www.baumer.com/motion 14/1/2016 0° 12 Subject to modification in technic and design. Errors and omissions excepted. 0° 12 5