SICK SRS50-HZA0-S36 Servo Encoder

SICK SRS50-HZA0-S36 Servo Single-Turn Absolute Encoder

1. Model Code Breakdown (SRS50-HZA0-S36)
2. SRS50: Series code, single-turn HIPERFACE servo feedback encoder (SRM50 stands for mechanical multi-turn gear version), servo model with 50 mm housing diameter
3. H: HIPERFACE standard servo interface (SICK dedicated servo feedback bus)
4. Z: Hollow shaft design (compatible with through-shaft motors)
5. A: 1024-period Sin/Cos sine-cosine signals
6. 0: Basic version without safety extensions
7. S: Radial 8-pin M23 male connector outlet
8. 36: Custom code for cable specification, flange and shaft diameter (6 mm hollow shaft, standard servo elastic coupling flange)
9. Core Electrical Specifications

2.1 Signals & Resolution

Single-turn absolute resolution: 32768 positions (15 bit)

Sine-cosine periods: 1024 cycles per revolution, differential analog SIN/COS signals

Interpolation accuracy: System graduation of 0.3 arcseconds, overall system accuracy ±52 arcseconds

Non-linearity: Integral ±45″, differential ±7″

Maximum signal frequency: 200 kHz, suitable for high-speed servo closed-loop control

Absolute encoding: Binary, value increases clockwise with shaft rotation

2.2 Power Supply & Communication

Supply voltage: DC 7~12 V, recommended DC 8 V

No-load current: 80 mA

Dual signal channels:

Analog channel: Differential SIN/REFSIN and COS/REFCOS (3 V peak-to-peak)

Parameter channel: RS485 (HIPERFACE digital communication for reading temperature, electronic nameplate and fault codes)

EEPROM storage: 1792 Bytes, supports writing motor parameters and calibration data

2.3 Safety Certifications

SIL 2 / PL d (ISO 13849-1), applicable for safety-related servo positioning applications

CE and RoHS compliant; EMC complies with EN 61000-6-2/3

3. Mechanical Specifications (Z-Type Hollow Shaft)

Shaft type: Φ6 mm hollow shaft, for direct motor shaft penetration

Flange: Standard servo elastic stator coupling (rubber damping to compensate mounting misalignment)

Maximum speed: 12,000 rpm; reliable absolute position reading ≤6,000 rpm

Limit angular acceleration: 200,000 rad/s²

Torque: Operating torque 0.2 N·cm, starting torque 0.4 N·cm

Allowable shaft misalignment:

Static: Radial ±0.2 mm / Axial ±0.8 mm

Dynamic: Radial ±0.15 mm / Axial ±0.2 mm

Weight: Approx. 0.27 kg, moment of inertia 10 g·cm²

Bearing service life: 3.6×10⁹ revolutions

4. Environmental Protection

Protection class: IP65 after connector assembly

Operating temperature: -30 ℃ ~ +85 ℃

Storage temperature: -30 ℃ ~ +90 ℃

Humidity: ≤90% RH, non-condensing

Shock resistance: 100 g / 6 ms; Vibration resistance: 10~2000 Hz, 10 g

5. Pin Assignment of 8-Pin Radial M23 Connector (HIPERFACE Standard)

6. Core Advantages
7. Dedicated HIPERFACE servo feedback: Fully compatible with HIPERFACE-enabled servo drives including SICK, Siemens, Rexroth and Lenze. Absolute position is read immediately after power-on without homing.
8. Electronic nameplate function: Drives automatically identify encoder ID and motor parameters, eliminating manual configuration.
9. Built-in diagnostic system: Real-time reporting of internal temperature, signal amplitude, short circuits, communication faults and shaft overspeed alarms.
10. All-metal code disc with dual bearings: Stable operation under heavy industrial vibration and high rotational speeds.
11. Compact hollow shaft design: Direct mounting at the rear of servo motors to save installation space.
12. Typical Application Scenarios

Closed-loop feedback for servo motors (machine tool spindles, engraving machines, robot joints)

Printing & packaging equipment, high-speed textile spindles

Automated indexing tables, linear motors

Medium & small high-precision positioning equipment

8. Alternative Model Selection Reference for the Same Series
9. Direct replacement with identical specs: SRS50-HZA0-S21 (same parameters, only differs in connector cable length code, fully drive-compatible)
10. Multi-turn upgrade: SRM50-HZA0-S36 (mechanical multi-turn absolute encoder supporting 4096 revolutions, no battery required)
11. Solid shaft version: SRS50-HXA0-K36 (6 mm solid shaft flange)
12. High-temperature variant: SRS50-HZA1-S36 (ambient temperature up to 115 ℃)
13. Common Fault Codes (HIPERFACE Communication)

01h: Initialization incomplete

02h: Internal amplifier fault

04h: Abnormal SIN/COS signal amplitude

07h: Encoder reset

0Fh: Overspeed, absolute position unreadable

10h: Over-temperature warning

Full Practical Application Cases of SRS50-HZA0-S36 Hollow Shaft HIPERFACE Single-Turn Absolute Encoder

Core characteristics of this model: Φ6 mm hollow shaft, S36 radial M23 outlet, 1024-period Sin/Cos signals, 15-bit single-turn absolute, SIL2/PL d, HIPERFACE servo interface, IP65 protection, max. 12,000 rpm. Compatible with Rexroth, Lenze and SICK servo systems. Below are real industry project cases covering equipment operating conditions, selection reasons and practical benefits.

1. CNC Machine Tool Industry (Most Widely Applied)

Case 1: Servo Motor Feedback for Feed Axes of Vertical Machining Center

1. Equipment Operating Conditions

3-axis vertical machining center with through-shaft mounting on rear side of X/Y/Z feed servo motors; maximum feed speed 60 m/min, spindle speed 8,000 rpm. Workshop environment features cutting fluid splashes, metal dust and severe vibration. The machine requires no homing after power-on and supports safety limit and emergency stop monitoring.

2. Reasons for Selecting SRS50-HZA0-S36

Φ6 mm hollow shaft directly sleeves motor output shaft; integrated elastic flange compensates mounting concentricity deviation.

HIPERFACE interface perfectly matches Rexroth IndraDrive servos; electronic nameplate automatically identifies motor parameters without manual entry.

SIL2 safety rating enables reuse of encoder safety feedback for machine safety circuit certification, cutting overall equipment certification costs.

Metal code disc resists cutting fluid splashes and dust; stable long-term operation under IP65 assembly without pulse loss or zero drift.

3. Operational Benefits

Repetitive positioning accuracy reaches ±0.002 mm with no jitter during high-speed acceleration and deceleration. Built-in diagnostics retrieve encoder temperature and signal amplitude to predict bearing wear in advance, reducing equipment downtime by 35%.

Case 2: High-Speed Spindle Servo Feedback for CNC Slant Bed Lathe

1. Operating Conditions: Electric spindle of CNC slant bed lathe with maximum speed 10,000 rpm, oil mist environment for mass shaft turning with synchronous thread machining requirements.
2. Matching Advantages: High interpolation via 1024 pairs of sine-cosine signals ensures stable electronic gear synchronization; side outlet radial M23 connector avoids interference with spindle protective covers.
3. Packaging & Printing Equipment Industry

Case 3: Main Film Feeding Servo of High-Speed Flow Wrapper

1. Operating Conditions: Fully automatic food packaging line with dynamic start-stop of film feeding servo, 120 packages per minute, synchronous film cutting and color mark tracking, 24-hour continuous operation under humid workshop conditions.
2. Selection Logic

Single-turn absolute design eliminates homing after shutdown and restart, enabling rapid alignment after film replacement.

Wide DC 7~12 V voltage range prevents signal distortion caused by voltage drop over long workshop cables.

Excellent vibration resistance avoids position offset from conveyor impact, maintaining consistent cutting dimensional tolerance at ±0.1 mm.

3. Project Outcome: Packaging yield increased from 96% to 99.7%, reducing film material waste.

Case 4: Color Registration Servo for Digital Web Printing Press

Matched with unwinding, web guiding and plate roller servo motors of printing machines for multi-axis electronic synchronization control; speed ranges from 0 to 300 m/min with zero ghosting color registration requirements. High-interpolation sine-cosine signals of SRS50-HZA0-S36 guarantee multi-axis synchronization precision, while built-in temperature diagnostics prevent signal attenuation under high temperatures.

3. Industrial Robots & Automated Assembly Lines

Case 5: Joint Servos of 6-Axis Small Handling Robot

1. Operating Conditions: 3C lithium battery assembly robot with built-in hollow shafts on 6 joint servo motors, compact body space, frequent high-speed reciprocating motion (0.8 s cycle time).
2. Matching Highlights

Compact 50 mm outer diameter + through hollow shaft enables lightweight integration at robot motor rear ends.

100 g shock resistance preserves position feedback under frequent start-stop and collision buffering.

HIPERFACE bus transmits joint angles in real time for smooth robot trajectories without jitter or offset.

3. Practical Value: Battery gripping positioning accuracy of ±0.01 mm meets cell stacking process standards.

Case 6: Automatic Torque Tightening Assembly Line for Automotive Components

Matched with servo tightening spindles for engine bolt tightening stations with dual closed-loop torque and position control. SIL2 safety rating complies with automotive equipment safety standards; abnormal overspeed and stall trigger rapid servo output cut-off to prevent machine collisions.

4. Elevator & Automated Warehouse Logistics Equipment

Case 7: Main Drive Feedback for Gearless Traction Elevators (Identical Scheme for European Orona Elevators)

1. Operating Conditions: Permanent magnet synchronous traction machines for passenger elevators with low-frequency reciprocating start-stop, requiring smooth start-stop and precise floor leveling.
2. Application Advantages

32768 single-turn absolute resolution delivers floor leveling error ≤0.5 mm; smooth acceleration/deceleration control eliminates cabin jitter. Long bearing service life under frequent start-stop extends maintenance cycles by two times.

> Note: For high-rise multi-floor applications, upgrade to same-size SRM50 multi-turn model; SRS50-HZA0-S36 single-turn encoder is standard for low-rise single-building elevators.

Case 8: Travel & Lifting Servos of Automated Warehouse Stacker Cranes

Hollow shaft mounting on travel and lifting motors of high-speed stacker cranes in automated warehouses. Absolute position is read instantly after power-on without full-machine homing, improving warehouse inbound and outbound efficiency.

5. Textile, Rubber & Plastic Extrusion Equipment

Case 9: Warp Feeding Servo of High-Speed Warp Knitting Machine

Multi-axis synchronous yarn feeding for textile warp knitting machines at speeds above 8,000 rpm with cotton lint and dust in workshops. IP65 dustproof protection stabilizes Sin/Cos signals at high speeds to avoid yarn breakage and uneven fabric patterns.

Case 10: Traction Servo for Plastic Extruders

Traction servo for film and pipe extrusion with synchronous extrusion traction control, ambient high temperature around machine barrels (max. 75 ℃). The encoder’s wide operating temperature range of -30~85 ℃ adapts to long-term high-temperature operation without position drift.

6. Photovoltaic & Lithium Battery New Energy Equipment

Case 11: Feed Servo of PV Silicon Wafer Cutting Equipment

Worktable servo for diamond wire slicers with micron-level feed positioning. Single-turn absolute positions guarantee consistent slicing origin every time to reduce silicon wafer loss; hollow shaft fits ultra-thin servo motors for equipment miniaturization.

Case 12: Lithium Battery Electrode Slitting & Calendering Equipment

Matched with electrode calendering and web guiding servos for high-speed web synchronous control and 24-hour continuous production. Built-in encoder diagnostics monitor signal degradation in real time to prevent scrap from skewed electrode cutting.

7. Model Selection Summary (Quick Classification of Applicable & Inapplicable Scenarios)

Preferred Scenarios for SRS50-HZA0-S36

1. Φ6 mm hollow shaft through mounting on servo motors
2. Servo drives supporting Rexroth, Lenze or SICK HIPERFACE protocol
3. Equipment requiring single-turn positioning without homing after power-on
4. Equipment needing SIL2/PL d safety certification (machine tools, automotive equipment, elevators)
5. Limited installation space requiring side outlet radial M23 connectors
6. Servo closed-loop control with speed ≤12,000 rpm and medium precision requirements

Not Recommended Scenarios

1. Applications requiring wide travel with multi-turn positioning (select SRM50-HZA0-S36 mechanical multi-turn encoder)
2. Motors with solid shafts (select solid shaft model SRS50-HXA0-K36)
3. Drives only supporting EnDat, SSI or HIPERFACE DSL (protocol incompatibility)
4. Continuous ambient temperature above 85 ℃ (select A1 suffix high-temperature variant)