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WB21

Product catalog summary

Overview: The Positape® WB21 is a tape extension position sensor designed for measuring displacement up to 20,000 mm. It features a robust stainless steel measurement tape and offers various output options including analog, digital SSI, and CANopen.

Key Features:

Protection class up to IP67/IP69.
Magnetic absolute encoder for precise measurements.
Optional integrated inclination sensor (WBT21).
Redundant version available for enhanced reliability.

Product Versions:

Analog Output: Available in standard, programmable, and redundant configurations.
Digital Output: Options include SSI and CANopen, SAE J1939.

Specifications:

Measurement Range: 8000 to 20000 mm.
Resolution: Less than 0.05 mm for analog, 50 µm for digital SSI.
Linearity: ±0.10% f.s. standard, ±0.05% f.s. optional.
Material: Aluminum and PBT with a stainless steel tape.
Temperature Range: -40 to +85°C.
EMC Compliance: DIN EN 61326-1:2013.

Output Specifications:

Analog Outputs: Voltage (0.5-10 V, 0.5-4.5 V) and Current (4-20 mA) with programmable options.
Digital Outputs: SSI with Gray-Code and CANopen with adjustable node ID and transmission rates.

Environmental and Mechanical Specifications:

Shock Resistance: 100 g/11 ms, 100 shocks as per DIN EN 60068-2-27:1993.
Vibration Resistance: 20 g 10 Hz-2 kHz, 10 cycles as per DIN EN 60068-2-6:2008.
Weight varies with model, ranging from 1.1 kg to 4.0 kg.

Connection and Wiring:

Connector: M12, available in 5-pin and 8-pin configurations depending on the model.
Signal Wiring: Detailed pin configurations provided for each output type.

Accessories: Connector cables are available for different configurations, details provided in the document.

Specifications: The document outlines the specifications for a sensor system, including an excitation voltage range of 8 to 36 V DC and typical excitation currents of 20 mA at 24 V DC and 40 mA at 12 V DC, with a maximum of 80 mA. The measuring rate is 1 kHz (asynchronous), and the system offers temperature stability of ±50 x 10^-6/°C full scale (typical) and repeatability of 1 LSB. Operating temperature specifications depend on the respective sensor. The system is protected against reverse polarity and short circuits, with a dielectric strength of 1 kV (V AC, 50 Hz, 1 min.). It complies with EMC standard EN 61326-1:2013.

Signal Wiring: The sensor uses an M12, 5-pin connector for signal wiring. The output signals are mapped to specific connector pins with corresponding cable colors: Shield (pin 1, brown), Excitation + (pin 2, white), GND (pin 3, blue), CAN-H (pin 4, black), and CAN-L (pin 5, grey).

CAN Specification: The system supports CAN Specification ISO 11898, Basic and Full CAN 2.0 B, with a 24V-compliant, non-isolated transceiver. It follows the SAE J1939 communication profile with a baud rate of 250 kbit/s. The internal termination resistor is 120 Ω, adjustable by the customer. The default address is 247d, which is configurable.

Accessories: Various connector cables are available, including M12, 4-pin and 5-pin options, both in angular and straight couplings. These cables are shielded and available in lengths of 2 m, 5 m, and 10 m, with a wire cross-sectional area of 0.34 mm² and a cable diameter of 5.6 ±0.2 mm. The document also details order codes for these cables, including IP69-rated versions.

Additional Components: The document mentions additional components such as a T-connector for bus cables and a terminating resistor for M12, 5-pin CAN-Bus systems. These components are designed for use with cable carriers, supporting 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.

Connector Cable M12, 8 Pin: The 8-pin connector cables are also available in angular and straight couplings, with a wire cross-sectional area of 0.25 mm² and a cable diameter of 6.3 ±0.2 mm. These cables are suitable for cable carriers with the same movement and bending specifications as the 4-pin and 5-pin cables.

Additional Information: The document provides an order code for a tape pulley (WBR1) and notes that dimensions are informative only, recommending consultation with the factory for guaranteed dimensions.

Catalog excerpts

positape® Tape Extension Position Sensors WB21 Displacement sensor with measurement length up to 20,000 mm Robust stainless steel measurement tape Multiple deflections possible With magnetic absolute encoder Optional with integrated inclination sensor (WBT21) Redundant version available Product versions Analog output Analog output, programmable Analog output, redundant Digital output CANopen,

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WB21 - Tape Extension Position Sensor Version with analog output Specifications Order options 8000 / 10000 / /12500 / 15000 / 17500 / 20000 Measurement range Voltage 0.5 ... 10 V Voltage 0.5 ... 4.5 V Current 4 ... 20 mA, 3 wire Signal characteristics Sensing device Magnetic absolute encoder Aluminum, PBT Tape: stainless steel, 10 mm wide, 0,08 mm thick Protection class IP67/IP69 (with mating connector only) Dust wiper Temperature range approx. 1.1 kg approx. 1.4 kg approx. 1.7 kg approx. 3.0 kg approx. 4.0 kg approx. 4.0 kg Order example: WB21 – 20000 – U2 – A – L10 – M12R5 – BAB1 Accessories:...

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WB21 - Tape Extension Position Sensor Version with analog output, 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 Sensing device Magnetic absolute encoder Aluminum, PBT Tape: stainless steel, 10 mm wide, 0,08 mm thick Protection class IP67/IP69 (with mating connector only) Dust wiper Temperature range approx. 1.1 kg approx. 1.4 kg approx. 1.7 kg approx. 3.0 kg approx. 4.0 kg approx. 4.0 kg Accessories: Connector cable (see page 23)

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WB21 - Tape Extension Position Sensor Version with analog output, redundant Specifications Order options 8000 / 10000 / /12500 / 15000 / 17500 / 20000 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, PBT Tape: stainless steel, 10 mm wide, 0,08 mm thick Protection class IP67/IP69 (with mating connector only) Dust wiper Temperature...

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WB21 - Tape Extension Position Sensor Version with digital output SSI Specifications Order options Measurement range 50 µm (other resolutions on demand) Sensing device Magnetic absolute encoder Aluminum, PBT Tape: stainless steel, 10 mm wide, 0,08 mm thick Protection class IP67/IP69 (with mating connector only) Dust wiper Temperature range approx. 1.1 kg approx. 1.4 kg approx. 1.7 kg approx. 3.0 kg approx. 4.0 kg approx. 4.0 kg Accessories: Connector cable (see page 25)

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WB21 - Tape Extension Position Sensor Version with digital output CANopen, SAE J1939 Specifications Order options 8000 / 10000 / /12500 / 15000 / 17500 / 20000 Measurement range Sensing device Magnetic absolute encoder Aluminum, PBT Tape: stainless steel, 10 mm wide, 0,08 mm thick Protection class IP67/IP69 (with mating connector only) Dust wiper Temperature range approx. 1.1 kg approx. 1.4 kg approx. 1.7 kg approx. 3.0 kg approx. 4.0 kg approx. 4.0 kg Accessories: Connector cable (see page 24)

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A – Connector M12 Dimensions in mm [inch]. Dimensions informative only. For guaranteed dimensions consult factory.

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A – Connector M12 Dimensions in mm [inch]. Dimensions informative only. For guaranteed dimensions consult factory.

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A – Connector M12 Dimensions in mm [inch]. Dimensions informative only. For guaranteed dimensions consult factory.

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A – Connector M12 Dimensions in mm [inch]. Dimensions informative only. For guaranteed dimensions consult factory.

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A – Connector M12 Dimensions in mm [inch] Dimensions informative only. For guaranteed dimensions consult factory.

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Output specification Analog output U2 Voltage output 0.5 ... 10 V Excitation voltage Excitation current Output voltage Output current Measuring rate Stability (temperature) Reverse polarity, short circuit Operating temperature See specification of the respective sensor Excitation voltage Excitation current Output voltage Output current Measuring rate Stability (temperature) Reverse polarity, short circuit Operating temperature See specification of the respective sensor Excitation voltage Current output Excitation current Output current Measuring rate Stability (temperature) Reverse polarity,...

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Signal wiring Connector M12, 5 pin Output signals Cable color View to the sensor connector

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Analog output, programmable U2/PMU Voltage output 0.5 ... 10 V Excitation voltage Excitation current Output voltage Output current Measuring rate Stability (temperature) Reverse polarity, short circuit Operating temperature See specification of the respective sensor Excitation voltage Excitation current Output voltage Output current Measuring rate Stabilität (Temperatur) Reverse polarity, short circuit Operating temperature See specification of the respective sensor Excitation voltage Excitation current Output current Measuring rate Stability (temperature) Reverse polarity, short circuit Operating...

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Output …/PMU Programming of the start and end value by the customer (programmable) Teach-In of start and end value for the analog outputs U2/PMU, U8/PMU, I1/PMU is provided by a binary signal SPAN/ZERO. At the start position connect signal SPAN/ZERO for a period of 2 ... 3 seconds to GND via push button. At the end position connect signal SPAN/ZERO for a period of 5 ... 6 seconds to GND via a push button. The scaling range will be stored non-volatile. To reset the sensor to factory default ZERO/END must be connected to ground while powering up the sensor for 2 … 3 seconds. Signal wiring Connector...

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Analog output, redundant U2R Voltage output 0.5 ... 10 V Excitation voltage Excitation current 20 mA typical at 24 V DC 38 mA typical at 12 V DC max. 50 mA per channel Output voltage Output current Measuring rate Stability (temperature) Reverse polarity, short circuit Operating temperature See specification of the respective sensor Excitation voltage Excitation current 17 mA typical at 24 V DC 32 mA typical at 12 V DC max. 50 mA per channel Output voltage Output current Measuring rate Stability (temperature) Reverse polarity, short circuit Operating temperature See specification of the respective...

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