Absolute encoders - SSI Blind hollow shaft max. ø6 mm Magnetic single- or multiturn encoders 12 bit ST / 13 bit MT BMSH 30, BMMH 30 SSI - MAGRES Features –– Mini encoder single- or multiturn / SSI –– Magnetic sensing method –– Resolution: singleturn 12 bit, multiturn 13 bit –– Housing ø30 mm –– High resistance to shock and vibrations –– Reset input Technical data - mechanical design Voltage supply Size (flange) ø30 mm Shaft type ø4 mm (blind hollow shaft) ø6 mm (blind hollow shaft) Protection DIN EN 60529 IP 65 Operating speed ≤6000 rpm Operating torque typ. 0.0075 Nm Materials Housing: steel Flange: aluminium 5 VDC ±10 % 10...30 VDC Consumption typ. 100 mA (5 VDC, w/o load) 50 mA (24 VDC, w/o load) Initializing time typ. 70 ms after power on Interface SSI Steps per turn 4096 / 12 bit Absolute accuracy ±1 ° Sensing method Magnetic Operating temperature -20...+85 °C Code Gray or binary Relative humidity 95 % Code sequence CW: ascending values with clockwise sense of rotation; looking at flange Resistance Inputs SSI clock Zero setting input DIN EN 60068-2-6 Vibration 30 g, 10-2000 Hz DIN EN 60068-2-27 Shock 100 g, 6 ms Connection Output stages SSI data: linedriver RS485 Connector M12, 8-pin Cable 2 m Interference immunity DIN EN 61000-6-2 BMSH 30 Emitted interference DIN EN 61000-6-3 Weight approx. Approval UL approval / E217823 BMMH 30 Weight approx. BMSH 30 Function 60 g 70 g Singleturn BMMH 30 Function Multiturn Number of turns 8192 / 13 bit 1 www.baumer.com/motion 3/6/2016 Technical data - electrical ratings Subject to modification in technic and design. Errors and omissions excepted. BMMH 30 SSI with blind hollow shaft Absolute encoders - SSI Blind hollow shaft max. ø6 mm Magnetic single- or multiturn encoders 12 bit ST / 13 bit MT BMSH 30, BMMH 30 SSI - MAGRES Part number Singleturn Multiturn 12/00 BMMH 30D1 12/13 Connection 4 Cable 2 m, axial 5 Cable 2 m, radial T Connector M12, 8‑pin, axial N Connector M12, 8-pin, radial Connection 4 Cable 2 m, axial 5 Cable 2 m, radial T Connector M12, 8‑pin, axial N Connector M12, 8-pin, radial Blind hollow shaft P4 ø4 mm, IP 65, with clamping ring P6 ø6 mm, IP 65, with clamping ring Blind hollow shaft P4 ø4 mm, IP 65, with clamping ring P6 ø6 mm, IP 65, with clamping ring Resolution 12/00 12 bit singleturn Resolution 12/13 12/13 bit single-/multiturn Voltage supply / signals 05C 5 VDC / SSI 24C 10...30 VDC / SSI Voltage supply / signals 05C 5 VDC / SSI 24C 10...30 VDC / SSI Code G Gray code N Binary code Accessories Data transfer T=1/f Connectors and cables tm 10146775 clock data tv bit n bit n-1 bit 3 bit 2 Mounting accessories bit 1 Clock frequency f 100...1000 kHz Duty cycle of T 40...60 % Delay time tv 200 ns Monoflop time tm 20 µs + T/2 Female connector M12, 8-pin, straight, without cable 10164796 2 Set of spring washers www.baumer.com/motion Subject to modification in technic and design. Errors and omissions excepted. Code G Gray code N Binary code 3/6/2016 BMSH 30D1 Absolute encoders - SSI Blind hollow shaft max. ø6 mm Magnetic single- or multiturn encoders 12 bit ST / 13 bit MT BMSH 30, BMMH 30 SSI - MAGRES Terminal significance Terminal assignment +Vs 0V Encoder ground connection relating to +Vs. Cable for connection references -4 and -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 Zero Rot. direction 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. 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 and -T Ascending position values when looking at the flange and rotating the shaft clockwise. Trigger level 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 Control inputs Input circuit Pin 6 Data- Data signal Input level Low <0,4 V (>2 ms) Pin 7 Zero Zero setting input Input level High +Vs or open Pin 8 d.u. do not use 5 7 3 4 3 8 1 2 Subject to modification in technic and design. Errors and omissions excepted. 6 www.baumer.com/motion 3/6/2016 Clock- Encoder supply voltage. Absolute encoders - SSI Blind hollow shaft max. ø6 mm Magnetic single- or multiturn encoders 12 bit ST / 13 bit MT BMSH 30, BMMH 30 SSI - MAGRES Dimensions BMSH/BMMH 30 SSI, cable axial BMSH/BMMH 30 SSI, cable radial 25 30 ø16 8,5 5,5 42,5 25 R= 13,5 ±1 50 13 14 R= 13,5 ±1 ø d H7 x 15 44,5 2,4 M2,5 x 5 3 x 120° 7,5 ø16 5,5 2,4 ø d H7 x 15 M2,5 x 5 3 x 120° 30 48 BMSH/BMMH 30 SSI, connector M12 axial 4 www.baumer.com/motion 3/6/2016 Subject to modification in technic and design. Errors and omissions excepted. ¡ 5 ¡G+[ ¡G+[ 0[ [ 5 0[ [ ¡ BMSH/BMMH 30 SSI, connector M12 radial