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WS7.5

Product catalog summary

Overview: The posiwire® WS7.5 is a cable extension position sensor designed for displacement measurement up to 40,000 mm. It features a robust construction with an aluminum, stainless steel, and EPDM housing, and offers various output options including analog, digital, and redundant configurations.

Specifications: The WS7.5 sensor is available in multiple versions with different output types: analog, SSI, CAN Bus, absolute encoder, and incremental encoder. The measurement range options are 10,000 to 40,000 mm, with resolutions varying by output type. The sensor maintains a linearity of ±0.10% f.s. (standard) or ±0.05% f.s. (optional).

Material and Protection: The sensor is constructed from aluminum, stainless steel, and EPDM, with a stainless steel measuring cable. It has a protection class of IP52, with the encoder offering IP64 protection.

Environmental and Mechanical Specifications: The WS7.5 operates within a temperature range of -20 to +85 °C and can withstand shocks up to 100 g/11 ms and vibrations of 20 g from 10 Hz to 2 kHz. It complies with EMC standard DIN EN 61326-1:2013.

Output Options:

Analog Output: Includes potentiometer, voltage, and current outputs with programmable options.
Digital Output: Offers SSI and CAN Bus interfaces, with options for redundancy.
Encoder Outputs: Available in absolute and incremental types, supporting various interfaces like Profibus, Interbus, DeviceNet, and CANopen.

Order and Accessories: The document provides detailed order codes for different configurations and lists available accessories such as connector cables. Example order codes are provided for clarity.

Dimensions and Installation: Dimensions are provided for different configurations, with a note that guaranteed dimensions should be confirmed with the factory. Installation instructions include details on cable fixing and connector types.

Key Considerations: The document emphasizes the importance of correct wiring and protection against electrical current impacts on the potentiometer to avoid linearity errors and extend the sensor's lifespan.

Specifications:
The document outlines various specifications for different sensor outputs and interfaces. The excitation voltage ranges from 8 to 36 V DC, with varying excitation currents depending on the specific output type. The document specifies voltage and current outputs, including PMUV, PMUI, and PMUI2, with details on output load, working resistance, and stability. The operating temperature is referenced to the output specification, and protection against reversed polarity and short circuits is included. EMC compliance is according to DIN EN 61326-1:2013.

Signal Wiring:
The document provides detailed signal wiring instructions for connectors, including M12, 8 pin, and M12, 5 pin configurations. It specifies the pin numbers, cable colors, and corresponding output signals for various sensor models, ensuring proper connection and functionality.

Programming and Scaling:
The document describes the programming of start and end values for outputs using binary signals ZERO and END. It explains the Teach-In process for setting these values and how to reset the sensor to factory defaults. The scaling range is stored non-volatile, ensuring consistent performance.

Digital Interfaces:
The document covers digital interfaces such as ADSI, MSSI, MCANOP, and MCANJ1939, detailing their specifications, including excitation voltage, current, clock frequency, and data format. It also provides information on transmission rates, cable lengths, and baud rates, emphasizing the impact of cable length on transmission rates.

Magnetic Encoder Outputs:
Various magnetic encoder outputs are detailed, including U2, U8, I1, and their programmable and redundant versions. Each output type has specific voltage or current output ranges, excitation requirements, and measuring rates. Stability and protection features are consistent across models, with EMC compliance noted.

Absolute Encoder Output:
The HSSI synchronous serial interface is described, including its excitation voltage, current, resolution, and data format. The document provides details on signal wiring and transmission rates, emphasizing the impact of cable length on performance.

Additional Interfaces:
The document includes information on additional interfaces such as Interbus, Profibus, and DeviceNet, detailing their specifications, protocols, and programmability. Each interface has specific requirements for excitation voltage, current, and baud rates, with options for bus terminating resistors and special functions.

Specifications:
1. Transmission Characteristics: The recommended characteristic impedance is between 135 and 165 Ω for frequencies ranging from 3 to 20 MHz. The operating capacity should be less than 30 pF, and the loop resistance should be under 110 Ω/km. Wire diameter should exceed 0.63 mm, and wire width should be greater than 0.34 mm².
2. Transmission Rate: The transmission rate varies with segment length: 500 m supports 125 Kbit/s, 250 m supports 250 Kbit/s, and 100 m supports 500 Kbit/s.
3. Signal Wiring: The bus cover includes terminals for various signals such as Ub in, 0 V in, CAN-L, CAN-H, and Drain.

Procedures and Interfaces:
1. CAN Interface: The CAN high-speed interface complies with ISO/DIS 11898, with an excitation voltage of 10 to 30 V DC and a current of 250 mA. The protocol used is CANopen according to DS301 with encoder profile DSP406.
2. Incremental Output: The LD5VC interface uses a line driver RS422 with an excitation voltage of 5 V DC ±10% and a maximum output frequency of 300 kHz.
3. PP24VC Interface: This uses a push-pull line driver (24 V-HTL) with an excitation voltage of 10 to 30 V DC and a maximum output frequency of 300 kHz.

Standards and Protection:
1. EMC Compliance: All components comply with EMC standard DIN EN 61326-1:2013.
2. Protection Features: Includes short circuit, overvoltage, reverse polarity protection, and stability against temperature variations.

Accessories:
1. Connector Cables: Various M12 connector cables are available in 4, 5, and 8 pin configurations, with lengths of 2 m, 5 m, and 10 m. These cables are shielded and suitable for sensor connectors.
2. Bus Cable and Connectors: M12, 5 pin CAN-Bus cables and T-connectors are available, with terminating resistors for CAN-Bus systems.

Recommendations:
1. Cable Carriers: The cables are applicable for cable carriers with a maximum movement speed of 3 m/s, maximum acceleration of 5 m/s², and a minimum bending radius of 10 times the cable diameter.

Conclusion: The document provides detailed specifications and guidelines for the use of posiwire® WS7.5 components, including transmission characteristics, interfaces, and accessories, ensuring compliance with EMC standards and offering protection features for reliable operation.

Catalog excerpts

posiwire® Cable Extension Position Sensors WS7.5 Displacement sensor with measurement length up to 40,000 mm Aluminum/stainless steel/EPDM housing Optional with magnetic absolute encoder Redundant version available Product versions Analog output, SSI output Analog output with magnetic encoder Analog output with magnetic encoder, programmable Analog output with magnetic encoder, redundant Digital output SSI with magnetic encoder Digital output CAN Bus with magnetic encoder Absolute encoder output Incremental encoder

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WS7.5 - Cable Extension Position Sensor Version with analog output, SSI output Specifications Order options Measurement range Analog: quasi infinite Potentiometer 1 kΩ Voltage 0 ... 10 V Current 4 ... 20 mA, 2 wire Current 4 ... 20 mA, 3 wire Current output, programmable Voltage output, programmable Signal conditioner SSI 12 bit Signal conditioner SSI 14 bit Signal conditioner SSI 16 bit Sensing device Precision potentiometer Aluminum, stainless steel and EPDM measuring cable: stainless steel Protection class Cable fixing M4 cable fixing Cable clip Temperature range Order example: WS7.5 – 30000...

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posiwire® WS7.5 Dimensions Measurement range 10000 … 40000 mm, analog output, SSI output Dimensions in mm [inch] Dimensions informative only. For guaranteed dimensions consult factory.

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WS7.5 - Cable Extension Position Sensor Version with analog output with magnetic encoder Specifications Order options Measurement range Voltage 0.5 ... 10 V Voltage 0.5 ... 4.5 V Current 4 ... 20 mA, 3 wire Signal characteristics Increasing signal (e.g. 4 ... 20 mA) Decreasing signal (e.g. 20 ... 4 mA) Sensing device Magnetic absolute encoder Aluminum, stainless steel and EPDM measuring cable: stainless steel Protection class Cable fixing M4 cable fixing Cable clip Connector M12, 5 pin (standard) Connector M12, 8 pin (DBs_optional) Temperature range Order example: WS7.5 – 30000 – U2 – A – L10...

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WS7.5 - Cable Extension Position Sensor Version with analog output with magnetic encoder, programmable Specifications Order options Measurement range Voltage 0.5 ... 10 V, programmable Voltage 0.5 ... 4.5 V, programmable Current 4 ... 20 mA, 3 wire, programmable Signal characteristics Increasing signal (e.g. 4 ... 20 mA) Decreasing signal (e.g. 20 ... 4 mA) Sensing device Magnetic absolute encoder Aluminum, stainless steel and EPDM measuring cable: stainless steel Protection class Cable fixing M4 cable fixing Cable clip Temperature range Order example: WS7.5 – 30000 – U2/PMU – A – L10 – M4 –...

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WS7.5 - Cable Extension Position Sensor Version with analog output with magnetic encoder, redundant Specifications Order options Measurement range Voltage 0.5 ... 10 V, redundant Voltage 0.5 ... 4.5 V, redundant Current 4 ... 20 mA, 3 wire, redundant Signal characteristics Output 1 increasing, output 2 increasing Output 1 increasing, output 2 decreasing Output 1 decreasing, output 2 decreasing Sensing device Magnetic absolute encoder Aluminum, stainless steel and EPDM measuring cable: stainless steel Protection class Cable fixing M4 cable fixing Cable clip Temperature range Order example: WS7.5...

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WS7.5 - Cable Extension Position Sensor Version with digital output SSI with magnetic encoder Specifications Order options Measurement range SSI synchronous serial interface Sensing device Magnetic absolute encoder Aluminum, stainless steel and EPDM measuring cable: stainless steel Protection class Cable fixing M4 cable fixing Cable clip Temperature range Order example: WS7.5 – 30000 – 100 – MSSI – L10 – M4 – M12A8 Accessories: Connector cable (see page 39)

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WS7.5 - Cable Extension Position Sensor Version with digital output CAN Bus with magnetic encoder Specifications Order options Measurement range CANopen CAN SAE J1939 CANopen redundant CAN SAE J1939 redundant Sensing device Magnetic absolute encoder Aluminum, stainless steel and EPDM measuring cable: stainless steel Protection class Cable fixing M4 cable fixing Cable clip Temperature range Order example: WS7.5 – 30000 – MCANOP – L10 – M4 – M12/CAN Accessories: Connector cable (see page 40) Cable forces Measurement range Maximum pull-out force Minimum pull-in force

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posiwire® WS7.5 Dimensions Measurement range 10000 … 40000 mm, magnetic encoder output Dimensions in mm [inch] Dimensions informative only. For guaranteed dimensions consult factory.

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WS7.5 - Cable Extension Position Sensor Version with absolute encoder output Specifications Order options Measurement range Output for 12 bit per revolution (4096 steps / revolution) Absolute encoder with synchronous serial output (SSI) Absolute encoder with Profibus interface Absolute encoder with Interbus interface Absolute encoder with DeviceNet interface Absolute encoder with CAN-interface Absolute encoder with CANopen interface Mechanism only for suitable multiturn encoders HSSI HPROF HINT HDEV HCAN HCANOP ME Sensing device Absolute encoder Aluminum, stainless steel and EPDM measuring cable:...

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WS7.5 - Cable Extension Position Sensor Version with incremental encoder output Specifications Order options Measurement range Incremental encoder TTL compatible Incremental encoder HTL compatible Sensing device Incremental encoder Aluminum, stainless steel and EPDM measuring cable: stainless steel Protection class Cable fixing M4 cable fixing Cable clip Temperature range Order example: WS7.5 – 30000 – LD5VC – L01 – M4 Accessories: Mating connector CONN-CONIN-12F-G (see page 41) Cable forces Measurement range Maximum pull-out force Minimum pull-in force

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posiwire® WS7.5 Dimensions Measurement range 10000 … 40000 mm; output: absolute and incremental encoder Dimensions in mm [inch] Dimensions D, F and L depend on the encoder type and sensor fixing. Dimensions informative only. For guaranteed dimensions consult factory. Connectable coupling in two parts The outer part of the coupling should be fitted to the encoder shaft. Adjust a 0.5 mm clearance between the fastening and the mounting flanges to give an initial tension on the coupling when the mounting bolts are tightened. Dimensions for encoder mounting

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