Absolute encoders - SSI Through hollow shaft ø10 to ø14 mm Optical single- or multiturn encoders max. 14 bit ST / 24 bit MT ATD 2S A 4 Y 7 Features –– Encoder single- or multiturn / SSI –– Optical sensing –– Resolution: max. singleturn 14 bit, multiturn 24 bit –– Through hollow shaft ø10-14 mm –– Self-diagnostic –– Electronic zero point adjustment –– Flange socket radial Optional –– HTL or TTL incremental signals Technical data - mechanical design Voltage supply Size (flange) ø58 mm Shaft type ø10 mm (through hollow shaft) ø12 mm (through hollow shaft) ø14 mm (through hollow shaft) Protection DIN EN 60529 IP 65 Operating speed ≤8000 rpm (mechanical) ≤8000 rpm (electric) Starting torque ≤0.02 Nm (+20 °C) Materials Housing: aluminium Shaft: stainless steel Operating temperature -20...+85 °C Relative humidity 90 % non-condensing Resistance DIN EN 60068-2-6 Vibration 10 g, 55-2000 Hz DIN EN 60068-2-27 Shock 30 g, 11 ms 10...30 VDC Reverse polarity protection Yes Consumption w/o load < 70 mA (24 VDC) Interface SSI Function Singleturn Multiturn Steps per turn ≤16384 / 14 bit Number of turns ≤16777216 / 24 bit Incremental output 2048 pulses A90°B + inv. HTL (optional) 2048 pulses A90°B + inv. TTL (optional) 2048 sine periods A, B, sine 1 Vpp (optional) Sensing method Optical Code Gray or binary Code sequence CW: ascending values with clockwise sense of rotation; looking at mounting surface CW/CCW be selectable by input V/R Weight approx. 325 g Connection Connector M23 type 2, 12-pin Connector M23 type 2, 17-pin Motor shaft tolerance Inputs SSI clock Zero setting input 0.25 mm axial 0.1 mm radial Mounting kit 002 Output stages SSI data: linedriver RS485 Diagnostic output: error Interference immunity DIN EN 61000-6-2 Emitted interference DIN EN 61000-6-3 1 www.baumer.com/motion 5/2/2014 Technical data - electrical ratings Subject to modification in technic and design. Errors and omissions excepted. –– Sine signals ATD 2S A 4 Y 7 with through hollow shaft Absolute encoders - SSI Through hollow shaft ø10 to ø14 mm Optical single- or multiturn encoders max. 14 bit ST / 24 bit MT ATD 2S A 4 Y 7 Part number ATD 2S A 4 Y 7 SS S IP65 002 Mounting kit 002 Mounting kit 002 Protection IP65 IP 65 Through hollow shaft 10 ø10 mm 12 ø12 mm 14 ø14 mm Operating temperature S -20...+85 °C D2SR12 D2SR17 Connection Flange socket type 2, pin contacts, radial, 12-pin Flange socket type 2, pin contacts, radial, 17-pin (SSI + incremental signals resp. SSI + sine signals) Output signals GR Gray code BI Binary code Resolution 9 bit singleturn 10 bit singleturn 11 bit singleturn 12 bit singleturn 13 bit singleturn 14 bit singleturn 9/12 bit single-/multiturn 10/12 bit single-/multiturn 11/12 bit single-/multiturn 12/12 bit single-/multiturn 13/12 bit single-/multiturn Other resolutions on request. Accessories Connectors and cables 2 11011122 Connector S2BG12, 1 m cable (ATD) 11071747 Connector S2BG12, 2 m cable (ATD) 11071749 Connector S2BG12, 5 m cable (ATD) 11070261 Connector S2BG17, 1 m cable (ATD) 11070262 Connector S2BG17, 2 m cable (ATD) 11070263 Connector S2BG17, 5 m cable (ATD) www.baumer.com/motion 5/2/2014 9 10 11 12 13 14 9/12 10/12 11/12 12/12 13/12 Subject to modification in technic and design. Errors and omissions excepted. Interface SS Serial SSI Absolute encoders - SSI Through hollow shaft ø10 to ø14 mm Optical single- or multiturn encoders max. 14 bit ST / 24 bit MT ATD 2S A 4 Y 7 Terminal significance Terminal assignment UB Encoder supply voltage. ATD 2S A 4 Y 7 GND Encoder ground connection relating to UB. Connector Assignment Data+ Positive, serial data output of differential linedriver. Pin 1 clock- Data- Negative, serial data output of differentiallinedriver. Pin 2 clock+ Pin 3 data+ 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. Pin 4 data- Pin 5 – Pin 6 – Pin 7 reset Pin 8 V/R Pin 9 – (do not use) Pin 10 error Pin 11 UB Pin 12 GND V/R Error Reset input for setting zero position value at any desired point within the entire resolution. The resetting process is triggered by apply of UB. 9 1 V/R counting direction input. This input is standard on High. V/R means increasing values with clockwise shaft rotation when looking at the mounting side (CW). V/R-Low means decreasing values with clockwise shaft rotation when looking at the mounting side (CCW). 2 10 8 12 7 6 3 4 11 5 ATD 2S A 4 Y 7 with incremental output signals Diagnostic output (Open Collector with internal 10 kΩ pullup-resistor). The output is high-active, that means if no fault submitted, the output is to GND interconnected. Connector Assignment Pin 1 clock- Pin 2 clock+ Pin 3 data+ Pin 4 data- Pin 5 – Pin 6 – Pin 7 reset Pin 8 V/R Pin 9 – (do not use) Pin 10 error Pin 11 UB Pin 12 GND Pin 13 – Pin 14 track A+ Pin 15 track A- Pin 16 track B+ Pin 17 track B1 12 11 16 10 13 9 2 3 4 5 3 Subject to modification in technic and design. Errors and omissions excepted. Reset 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. 14 17 6 15 8 7 www.baumer.com/motion 5/2/2014 Clock- Absolute encoders - SSI Through hollow shaft ø10 to ø14 mm Optical single- or multiturn encoders max. 14 bit ST / 24 bit MT ATD 2S A 4 Y 7 Trigger level Data transfer SSI Circuit SSI-Clock Optocoupler SSI-Data Linedriver RS485 clock Control input Input circuit data Input level High ≥0,7 UB Input level Low ≤0,3 UB Clock frequency f 80...1000 kHz Input resistance 10 kΩ Duty cycle of T 40...60 % Delay time tv 150 ns Diagnostic outputs Output circuit Monoflop time tm 20 µs + T/2 Output level Open Collector with internal 10 kΩ PullUp-resistance Clock interval tp 26 µs T=1/f tv bit n tm bit n-1 bit 3 bit 2 bit 1 Incremental outputs HTL - Line Driver short-circuit proof Output level High ≥UB -3 V Output level Low ≤0,5 V Load ≤30 mA Incremental outputs TTL - Line Driver short-circuit proof Output level High ≥2,4 V Output level Low ≤0,5 V Load ≤30 mA Outputs Sine / Cosine Output amplitude 1 VPP at Z0 = 120 Ω flexible torque support 4.5 cylinder head screw DIN 912 - M3 A/F2.5 tightening torque max. 1.4 Nm 22 ø58 22 d H7 0.5 15 37 52.5 mounting kit 002 (standard) 15 7 30 connector type 2, pin contacts, radial, ...-pin D2SR... 2xM3x6 028- 5 Y 7 4 www.baumer.com/motion 5/2/2014 7 Subject to modification in technic and design. Errors and omissions excepted. Dimensions