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Netzer VLX-35 Product Manual

Absolute rotary encoder, hollow shaft kit encoder
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VLX-35
PRODUCT GUIDE
Absolute
Rotary Encoder
Hollow Shaft
Kit Encoder

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Summary of Contents for Netzer VLX-35

  • Page 1 VLX-35 PRODUCT GUIDE Hollow Shaft Absolute Kit Encoder Rotary Encoder...

  • Page 3: Table Of Contents

    11.1 Absolute position over SSi or BiSS-C ............................11.2 Digital SSi Interface ....................................11.3 Digital BiSS-C Interface ..................................11.4 Setup mode over NCP (Netzer Communication Protocol) ..................11.5 Electrical connection and grounding ............................12. Signal Verification ................................17-19 12.1 Starting the Encoder Explorer ................................

  • Page 4: Vlx Encoders Introduction

    These encoders are based on capacitive technology which have been developed and improved for over 20 years by Netzer Precision Position Sensors. The VLX encoders are characterized by the following features that sets them apart from other similar encoders: ●...

  • Page 5: Technical Specifications

    Storage temperature -40°C to +105°C Relative humidity 98% Non condensing Shock endurance / functional 100g 6msec saw-tooth per IEC 60068-2-27:2009 Vibration functional 20g @ 10 to 2000 Hz sweep per IEC 60068-2-6 Protection IP 40 Netzer Precision Position Sensors VLX-35-PG-V01...

  • Page 6: Ordering Code

    VLX Product Line Extended Accuracy nnn Custom Outer Diameter Rotor Type Output Hollow Shaft Encoder End Shaft - Double Screw Rotor BiSS End Shaft - Single Screw Rotor Resolution Horizontal Connector Code 131,072 262,144 524,288 VLX-35-PG-V01 Product Guide...

  • Page 7: Mechanical Drawings

    - to prevent parasitic capacitance. Unless otherwise specified Dimensions are in: mm Surface finish: N6 Linear tolerances 0.5-4.9: ±0.05 mm 5-30: ±0.1 mm 31-120: ±0.15 mm 121-400: ±0.2 mm Netzer Precision Position Sensors VLX-35-PG-V01...
  • Page 8 - to prevent parasitic capacitance. Unless otherwise specified Dimensions are in: mm Surface finish: N6 Linear tolerances 0.5-4.9: ±0.05 mm 5-30: ±0.1 mm 31-120: ±0.15 mm 121-400: ±0.2 mm VLX-35-PG-V01 Product Guide...
  • Page 9 - to prevent parasitic capacitance. Unless otherwise specified Dimensions are in: mm Surface finish: N6 Linear tolerances 0.5-4.9: ±0.05 mm 5-30: ±0.1 mm 31-120: ±0.15 mm 121-400: ±0.2 mm Netzer Precision Position Sensors VLX-35-PG-V01...

  • Page 10: Mechanical Interface Control Drawing

    5. Mechanical Interface Control Drawing Hollow Shaft Encoder End Shaft Encoder Single Screw Rotor Accessories cables (optional) SSi / BiSS Remarks CB-00165 AWG30, 250 mm VLX-35-PG-V01 Product Guide...
  • Page 11 Absolute Hollow Shaft VLX-35 PRODUCT GUIDE Rotary Encoder Kit Encoder Hollow Shaft Encoder Accessories cables (optional) SSi / BiSS Remarks CB-00165 AWG30, 250 mm Netzer Precision Position Sensors VLX-35-PG-V01...

  • Page 12: Storage And Handling

    8. Product Overview 8.1 Overview The VLX-35 absolute position Electric Encoder™ is a rotary position sensor developed for demanding applications. Currently it performs in a broad range of robotic ,automation and industrial applications. The Electric Encoder™ non-contact technology provides accurate position measurement through the modulation of an electric field.

  • Page 13: Unpacking - Standard Order

    (3) NanoMIC-KIT-01, RS-422 to USB converter. Setup & Operational modes via SSi /BiSS interface. (4) DKIT-VLX-35-SF-CHE1, Mounted SSi encoder on rotary jig, RS-422 to USB converter and cables. (5) DKIT-VLX-35-IF-CHH, Mounted BiSS encoder on rotary jig, RS-422 to USB converter and cables.

  • Page 14: Electric Encoder Software Installation

    Windows .NET Framework, V4 minimum 9.2 Installing the software ● Encoder Explorer Software Tools Run the Electric Encoder™ Explorer file found on Netzer website: ● After the installation you will see Electric Encoder Explorer software icon on the computer desktop. ●...
  • Page 15 Encoder Explorer software (see plot below). This may vary according to the encoder type. Verify proper rotor mounting with the Encoder Explorer tools “Signal analyzer” or “Signal verification process. ” Note: for more information please read section 7 Netzer Precision Position Sensors VLX-35-PG-V01...

  • Page 16: Electrical Connection

    Clock + Grey P.S. Clock Clock - Blue GND / RTN Data - Yellow Data + Data Data / NCP TX Data + Green Data - Black Ground Clock - Clock / NCP RX Power supply Clock + VLX-35-PG-V01 Product Guide...

  • Page 17: Digital Ssi Interface

    Clock period f= 1/T Clock frequency 0.2-3.0 MHz Bit update time 90 nsec Pause time 26 - ∞ μsec Monoflop time 25 μsec Time between 2 adjacent requests Tr > n*T+26 μsec fr=1/Tr Data request frequency Netzer Precision Position Sensors VLX-35-PG-V01...

  • Page 18: Digital Biss-C Interface

    The CRC polynomial for position, error and warning 6 bits 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 cycle’s 25 μs VLX-35-PG-V01 Product Guide...

  • Page 19: Setup Mode Over Ncp (Netzer Communication Protocol)

    SSI / BiSS NanoMIC Electric Encoder Connect Netzer encoder to the converter, connect the converter to the computer and run the Electric Encoder Explorer Software Tool 11.5 Electrical connection and grounding Observe the following grounding consideration: The cable shield electrically floating (unconnected) by default.

  • Page 20: 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. VLX-35-PG-V01 Product Guide...

  • Page 21: Signal Verification Process

    This is performed by collecting raw data of the fine and coarse channels during rotation. ● Select <Signal Verification> on the main screen (a). ● Select <Start> to initiate the process (b). ● Rotate the shaft in order to collect the fine and coarse channels data (c). Netzer Precision Position Sensors VLX-35-PG-V01...
  • Page 22 Stop the process and re-mount the encoder, making sure that the mechanical installation tolerances are not exceeded, removing or adding shims as required. ● Repeat the Signal Verification process after the remount. Once the signal verification process is successfully completed, proceed to the encoder calibration phase, Section 13 VLX-35-PG-V01 Product Guide...

  • Page 23: Calibration

    During Auto-Calibration process the encoder’s Zero-Position remain in the factory default zero position for new encoders. It is possible to set the Zero Point through the top menu bar, by selecting “Calibration” tab, and clicking “Set UZP” as defined in section 13.3. Netzer Precision Position Sensors VLX-35-PG-V01...
  • Page 24 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). VLX-35-PG-V01 Product Guide...
  • Page 25 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. Netzer Precision Position Sensors VLX-35-PG-V01...

  • Page 26: Manual Calibration

    (MAA) are calculated 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. VLX-35-PG-V01 Product Guide...
  • Page 27 / coarse channels, should be a clear "thin" circle which appears in the center of the plots (d) (e) with a possible slight offset. ● When offset calibration is completed, click on <Continue to CAA/MAA Calibration> button (f ). Netzer Precision Position Sensors VLX-35-PG-V01...
  • Page 28 The system displays the recommended number of points by default. The minimum points over the working sector is 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). VLX-35-PG-V01 Product Guide...
  • Page 29 Complete the sampling process using the following routine: positioning the shaft --> stand still --> clicking <Continue> (d) to sample the position. ● When the process is completed click the <Apply and Continue to UZP> button (f ). Netzer Precision Position Sensors VLX-35-PG-V01...

  • Page 30: 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”. VLX-35-PG-V01 Product Guide...

  • Page 31: Jitter Test

    Select “Calibration” tab, and click “Jitter Test” ● Select the Jitter test mode (a). ● Set the Timing and Sampling parameters (b). ● Click <Start> button (c) and check if the results (d) are within acceptable tolerances for the intended application. Netzer Precision Position Sensors VLX-35-PG-V01...

  • Page 32: 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 33 Absolute Hollow Shaft VLX-35 PRODUCT GUIDE Rotary Encoder Kit Encoder Netzer Precision Position Sensors VLX-35-PG-V01...
  • Page 34 Misgav Industrial Park, P.O. Box 1359 D.N. Misgav, 2017400 Tel: +972 4 999 0420 Netzer Precision Position Sensors Inc. 200 Main Street, Salem NH 03079 Tel: +1 617 901 0820 www.netzerprecision.com Copyright © 2024 Netzer Precision Position Sensors A.C.S. Ltd. All rights reserved.

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