Netzer VLP Series Product Manual

Hollow shaft encoder

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PRODUCT GUIDE
Hollow Shaft Encoder - VLP Product Line

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Summary of Contents for Netzer VLP Series

  • Page 1 PRODUCT GUIDE Hollow Shaft Encoder - VLP Product Line...
  • Page 3: Table Of Contents

    Calibration ......................................18-26 11.1 Auto-calibration ......................................18 11.2 Manual calibration ....................................21 11.3 Setting the encoder zero-position ............................25 11.4 Jitter test ........................................26 Operational Mode ....................................27 12.1 SSi / BiSS ........................................27 Copyright © 2025 Netzer Precision Position Sensors A.C.S. Ltd. All rights reserved.
  • Page 4: Vlp Series Encoders

    VLP family as the optimal choice for demanding applications in aerospace, robotics, defense, and medical devices. Netzer's holistic design philosophy sets the VLP series apart as more than just a product line - it's a transformative innovation that redefines motion control. By delivering seamless integration capabilities and a superior approach to position sensing, the VLP encoders empower engineers to tackle complex challenges with unprecedented ease and precision.
  • Page 5: Ordering Code

    BIT (Built In Test): Optional Wires only None Shaft-turn Counter* (Not for VLP-35) None 2,048 4,096 8,192 16,384 * The combination of Resolution and Shaft-turn Counter should not exceeded more than 31 bit (at SSi). Netzer Precision Position Sensors VLP-PG-V01...
  • Page 6: Technical Specifications

    3. Technical Specifications Electrical Supply voltage Current consumption Communication Clock frequency Material (stator / rotor) 5V ±5% ~110 mA SSi, BiSS-C 0.1- 5.0 MHz PCB (FR4) Environment Operating temp. Storage temp. Relative humidity Built In Test BIT IEC 6100-6-2, IEC 6100-6-4 -40°...
  • Page 7 4,000 rpm 35 kHz (Optional - 375 kHz) NOTE: Technical data might change from time to time, please refer to website. Specific data concerning mounting and tolerances can be found on website in the technical drawings. Netzer Precision Position Sensors VLP-PG-V01...
  • Page 8: Cable Options

    4. Cable Options Cable options Netzer Cat No. CB 00014-A CB 00034 Cable type 30 AWG twisted pair x 3 28 AWG twisted pair x 3 Wire type 2 x 30 AWG tinned copper 2 x 30 AWG tinned copper Insulation: Ø...
  • Page 9: Installation Flew Chart

    Absolute Rotary Encoder Hollow Shaft PRODUCT GUIDE 5. Installation Flow Chart Electric Encoder Software Installation on PC Mechanical Mounting Electrical Connection Signal Verification Calibration Mounting Correction Netzer Precision Position Sensors VLP-PG-V01...
  • Page 10: Storage And Handling

    Windows .NET Framework, V4 minimum 8.2 Installing the software ● Run the Electric Encoder™ Explorer file found on Netzer website: Encoder Explorer Software Tools. ● After the installation you will see Electric Encoder Explorer software icon on the computer desktop.
  • Page 11: Electrical Connection

    Power supply SSi / BiSS output signal parameters Output code Binary Serial output Differential RS-422 Clock Differential RS-422 Clock frequency 0.1 ÷ 5.0 MHz Position update rate 35 kHz (Optional - up to 375 kHz) Netzer Precision Position Sensors VLP-PG-V01...
  • Page 12: Digital Ssi Interface

    9.2 Digital SSi Interface Synchronous Serial Interface (SSi) is a point to point serial interface standard between a master (e.g. controller) and a slave (e.g. sensor) for digital data transmission. Master Clock Encoder Data Built In Test option (BIT) The BIT indicates critical abnormality in the encoder internal signals. '0' –...
  • Page 13: Digital Biss-C Interface

    6 bits warning data is: x . It is transmitted MSB first and inverted. The start bit and “0” bit are omitted from the CRC calculation. Timeout Elapse between the sequential “start”request 25 μs cycle’s Netzer Precision Position Sensors VLP-PG-V01...
  • Page 14: Setup Mode Over Ncp (Netzer Communication Protocol)

    SSi Data / NCP TX Green Data / TX + Ground Black Power supply Connect Netzer encoder to the converter, connect the converter to the computer and run the Electric Encoder Explorer Software Tool. Setup Blue Box Electric Encoder Setup...
  • Page 15: Signal Verification

    Encoder data is displayed in the encoder data area (CAT No., Serial No.) (e). The position dial display responds to shaft rotation (f). It is important to perform the Signal Verification process prior to the calibration of the encoder to ensure optimal performance. Netzer Precision Position Sensors VLP-PG-V01...
  • Page 16: Signal Verification Process

    10.2 Signal verification process The Signal Verification process ensures that the encoder is mounted correctly and provides good signal amplitudes. This is performed by collecting raw data of the fine and coarse channels during rotation. ● Select <Signal Verification> on the main screen (a). ●...
  • Page 17 ● Repeat the Signal Verification process after remounting. Note: Once the signal verification process is successfully completed, proceed to the encoder calibration phase, Section 10. Netzer Precision Position Sensors VLP-PG-V01...
  • Page 18: Calibration

    11. Calibration It is important that upon every installation of the encoder, the Signal Verification process is completed prior to attempting calibration of the encoder. For encoders with FW 4 version 4.1.3 or higher, it is possible to select either a fully automated calibration process, or a manual phase-by-phase calibration process.
  • Page 19 AP calibration is completed, and the encoder is reset. Once the reset is over, the Auto-calibration process is successfully finished. The user can review the calibration results by clicking the <View data> button (b). Netzer Precision Position Sensors VLP-PG-V01...
  • Page 20 It is always possible to abort the Auto Calibration process by clicking the <Abort> button (c). 11.1.3 Auto-calibration failures If a test fails (for example the Noise test) – the result will be marked with in red X. If the calibration process failed, corrective recommendations will be displayed, corresponding to the element which had failed the test.
  • Page 21: Manual Calibration

    3. Zero Position Set - Used to determine a Zero Position other than the factory default. 4. Jitter Test - Used to determine the amount of jitter and allow the user to decide if acceptable. Netzer Precision Position Sensors VLP-PG-V01...
  • Page 22 ● Select <Manual Calibration> on the main screen (a). 11.2.1 Offset calibration In this process, the DC (direct current) offset of the sine and cosine signals are compensated over the operational sector (offset calibration). ● Click <Start data acquisition> (b). ●...
  • Page 23 The minimum points over the working sector are nine. Note that the Total number of points would change to the optimal default according to the selected measurement range above. ● Click the <Start Calibration> button (b). Netzer Precision Position Sensors VLP-PG-V01...
  • Page 24 The Calibration process control (c) indicates the current position, and the next target position to which the shaft should be rotated. ● Rotate the shaft to the next position, stop and click the <Continue> button to sample the position (d). The shaft should be at STAND STILL when clicking the button.
  • Page 25: Setting The Encoder Zero-Position

    It is possible to set either current position or rotate the shaft to any other position to be set as the zero point. It is also possible to set the Zero Point through the top menu bar, by selecting “Calibration” tab, and clicking “Set UZP”. Netzer Precision Position Sensors VLP-PG-V01...
  • Page 26: Jitter Test

    11.4 Jitter test The jitter test is used evaluate the level of electric noise. Common jitter should be +/- 3 counts; higher jitter may indicate system noise and would require better grounding or shielding of the electric noise source. ● Select “Calibration”...
  • Page 27: Operational Mode

    Operational Mode indication of the SSi / BiSS encoder interface is available by using the NanoMIC to connect with the encoder. When in Operational Mode the color of the position dial is orange. For more information read about NanoMIC on Netzer website The operational mode is using SSi / BiSS interface with 1MHz clock rate.
  • Page 28 ISRAEL Netzer Precision Position Sensors A.C.S. Ltd. Misgav Industrial Park, P.O. Box 1359 Misgav, 2017400 Tel: +972 4 999 0420 Netzer Precision Position Sensors Inc. 200 Main Street, Salem NH 03079 Tel: +1 617 901 0820 SCAN HERE...

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