Encoders without bearings - absolute Magnetic sensor bore max. ø6 mm Magnetic single- or multiturn encoders / kit 12 bit ST / 13 bit MT BMSK 42, BMMK 42 SSI - MAGRES Features –– Mini encoder / kit single- or multiturn / SSI –– Magnetic sensing –– Resolution: singleturn 12 bit, multiturn 13 bit –– Housing ø42 mm –– High resistance to shock and vibrations –– Reset input Technical data - mechanical design Voltage supply 5 VDC ±10 % 10...30 VDC Size (flange) ø55 mm 100 mA (5 VDC, w/o load) 50 mA (24 VDC, w/o load) Shaft type ø6 mm (magnet bore) Protection DIN EN 60529 IP 67 Gap tolerance ≤0.3 mm axial ≤0.1 mm radial Operating temperature -20...+85 °C Operating speed ≤12000 rpm (mechanical) ≤6000 rpm (electric) Resistance DIN EN 60068-2-6 Vibration 30 g, 10-2000 Hz DIN EN 60068-2-27 Shock 100 g, 6 ms Relative humidity 95 % Connection Connector M12, 8-pin Cable Consumption typ. Sensing method Magnetic Initializing time typ. 170 ms after power on Steps per turn 4096 / 12 bit Output stages SSI data: linedriver RS485 Absolute accuracy ±1 ° Interface SSI Code Gray or binary Code sequence CW: ascending values with clockwise sense of rotation; looking at flange Inputs SSI clock Zero setting input BMSK 42 Interference immunity DIN EN 61000-6-2 Materials Emitted interference DIN EN 61000-6-3 Housing: steel/aluminium Flange: aluminium Approval UL approval / E217823 Weight approx. 50 g BMMK 42 BMSK 42 Function Singleturn BMMK 42 Number of turns 8192 / 13 bit Function Multiturn 1 Materials Housing: steel Flange: aluminium Weight approx. 300 g www.baumer.com/motion 16/3/2015 Technical data - electrical ratings Subject to modification in technic and design. Errors and omissions excepted. BMMK 42 SSI kit Encoders without bearings - absolute Magnetic sensor bore max. ø6 mm Magnetic single- or multiturn encoders / kit 12 bit ST / 13 bit MT BMSK 42, BMMK 42 SSI - MAGRES Part number Singleturn Multiturn 05C 12/00 06 BMMK 42L1 12/13 06 Connection 5 Cable radial B Connector M12, axial N Connector M12, radial Connection 5 Cable radial B Connector M12, axial N Connector M12, radial Solid shaft 06 ø6 mm magnet bore Solid shaft 06 ø6 mm magnet bore Resolution 12/00 12 bit singleturn Resolution 12/13 12/13 bit single-/multiturn Voltage supply / signals 05C 5 VDC / SSI Voltage supply / signals 05C 5 VDC / SSI 24C 10...30 VDC / SSI Code G Gray code N Binary code Code G Gray code N Binary code Data transfer T=1/f Accessories tm Connectors and cables 10146775 clock tv bit n bit n-1 bit 3 bit 2 bit 1 Mounting accessories 10112433 Clock frequency f 100...1000 kHz Duty cycle of T 40...60 % Delay time tv 200 ns Monoflop time tm 20 µs + T/2 Hexagon wrench 2 mm Subject to modification in technic and design. Errors and omissions excepted. data Female connector M12, 8-pin, straight, less cable 2 www.baumer.com/motion 16/3/2015 BMSK 42L1 Encoders without bearings - absolute Magnetic sensor bore max. ø6 mm Magnetic single- or multiturn encoders / kit 12 bit ST / 13 bit MT BMSK 42, BMMK 42 SSI - MAGRES Terminal significance Terminal assignment +Vs 0V Encoder ground connection relating to +Vs. Cable for connection reference -5 Data+ Positive, serial data output of differential linedriver. Core colour Signals Description brown +Vs Supply voltage Data- Negative, serial data output of differential linedriver. white 0V Supply voltage Clock+ Positive SSI clock input. Clock+ together with Clock- forms a current loop. A current of approx. 7 mA towards Clock+ input means logic 1 in positive logic. grey Data+ Data signal pink Data- Data signal green Clock+ Clock signal yellow Clock- Clock signal blue Zero Zero setting input red d.u. do not use Rot. direction Input for setting a zero point anywhere within the encoder resolution. The zero setting operation is triggered by a Low impulse. Connect to +Vs after setting operation for maximum interference immunity. Impulse duration >2 ms. Screen connected to housing Cable data 8 x 0.14 mm2 Connector M12 male for connection reference -N Ascending position values when looking at the flange and rotating the shaft clockwise. Connector Signals Description Pin 1 0V Supply voltage Pin 2 +Vs Supply voltage Pin 3 Clock+ Clock signal Pin 4 Clock- Clock signal Pin 5 Data+ Data signal Pin 6 Data- Data signal Pin 7 Zero Zero setting input Pin 8 d.u. do not use 5 6 7 4 3 8 1 2 Trigger level 3 Control inputs Input circuit Input level Low <0,4 V (>2 ms) Input level High +Vs or open www.baumer.com/motion Subject to modification in technic and design. Errors and omissions excepted. Zero Negative SSI clock input. Clock- together with Clock+ forms a current loop. A current of approx. 7 mA towards Clock- input means logic 0 in positive logic. 16/3/2015 Clock- Encoder supply voltage. Encoders without bearings - absolute Magnetic sensor bore max. ø6 mm Magnetic single- or multiturn encoders / kit 12 bit ST / 13 bit MT BMSK 42, BMMK 42 SSI - MAGRES Dimensions BMSK 42 SSI cable radial ø3,2 3 x 120 ° 3 M3 ø42 3 M3 48 55 6,3 Pin 1 48 10 2 BMSK 42 SSI connector M12 radial 2 15,5 BMMK 42 SSI cable radial ø3,2 3 x 120° M3 3 ø 42 3 55 48 35 55 6,3 16 ø6 h7x 7 10,5 2 ø 35 H9 ø 14 17 ø 35 H9 ø 14 48 ø 6 H7 x7 ø 42 M3 6,3 55 35 ø 3,2 3 x 120° ø14 ø6-H7x7 ø35-H9 11,4 16 ø14 ø6-H7x7 ø35-H9 ø42 ø3,2 3 x 120 ° BMSK 42 SSI connector axial 2 42 BMMK 42 SSI connector M12 radial Subject to modification in technic and design. Errors and omissions excepted. 3 17 ø 35 H9 ø 14 55 ø 6 H7 x7 48 10,5 2 42 4 www.baumer.com/motion 16/3/2015 M3 ø 42 ø 3,2 3 x 120°