Nidec SI-Encoder V2 User Manual
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Nidec SI-Encoder V2 User Manual

Nidec SI-Encoder V2 User Manual

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User Guide
SI-Encoder V2
Part Number: 0478-0705-01
Issue: 1

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Summary of Contents for Nidec SI-Encoder V2

  • Page 1 User Guide SI-Encoder V2 Part Number: 0478-0705-01 Issue: 1...
  • Page 2 The Nidec logo is a trade mark of Nidec Corporation. The Control Techniques logo is a trade mark owned by Nidec Control Techniques Limited. All other marks are property of their respective owners.

  • Page 3: Table Of Contents

    Auto-identification and auto-configuration ...11 Manual setup ............11 Selecting the module for motor control feedback (high performance drives only) ......12 Parameters ...........13 Logic diagram .............13 Single line descriptions ........14 Parameter descriptions ........15 Diagnostics ..........27 Alarms ..............27 Trips ..............27 SI-Encoder V2 User Guide...

  • Page 4: Safety Information

    All machinery to be supplied within the European Union in which this environmental limits. This includes temperature, humidity, product is used must comply with the following directives: contamination, shock and vibration. Drives must not be subjected to 2006/42/EC Safety of machinery. excessive physical force. 2014/30/EU: Electromagnetic Compatibility. SI-Encoder V2 User Guide...

  • Page 5: Hazardous Environments

    It is the responsibility of the installer to ensure that the equipment or system into which the product is incorporated complies with the relevant EMC legislation in the place of use. SI-Encoder V2 User Guide...

  • Page 6: Introduction

    It should be noted that the position returned by SMART-ABS and Sankyo encoders increases when the encoder rotates in the counter-clockwise direction, unlike other position feedback devices supported by Control Techniques drives. The SI-Encoder V2 module reverses the direction of rotation of these encoders so that with default settings, the motor on which the encoder is fitted will rotate in the clockwise direction when viewed from the motor shaft end with a positive (forward) speed reference.

  • Page 7: Electronic Nameplate

    Position Freeze The SI-Encoder V2 module does not have a freeze input terminal but the position of the connected feedback device can be captured by a freeze input on the drive or another option module (i.e. SI-Applications Plus/Compact or SI-Universal Encoder modules). The position of the connected feedback device can be captured on a rising or falling edge of the freeze signals and the delay of the sensor used to trigger the freeze can also be compensated for.

  • Page 8: Mechanical Installation

    WARNING General installation For information on the installation of the SI-Encoder V2 option module please refer to the installation sheet provided with the option module. NOTE Option modules can only be installed on drives that have the option module slot functionality.

  • Page 9: Electrical Installation

    Encoder power supply output Supply voltage 5.15 V ±4 %, 8 V ±5 % or 15 V ±6 % 300 mA for 5 V and 8 V Maximum output current 200 mA for 15 V 0V common Shield connection SI-Encoder V2 User Guide...

  • Page 10: Wiring, Shield Connections

    Use a cable with an overall shield • For the SI-Encoder V2 module do not connect the cable shields to 0V at the module/drive nor at the encoder. • Directly clamp the shield to the encoder body (no pigtail) and to the drive grounding bracket. The shield can be terminated at terminal 7 at the module if required.

  • Page 11: Getting Started

    Diagnostics Getting Started When setting up the SI-Encoder V2 the host drive should be disabled by removing the Safe Torque Off (STO) or enable signals to the drive. Auto-identification and auto-configuration When fitted to a high performance drive and with default parameter settings, then at each power up the SI-Encoder V2 module will attempt to automatically identify the connected encoder, and in the event of it detecting a Tamagawa SMART-ABS/INC or Sankyo encoder, it will auto-configure the necessary module parameters listed below and make the encoder ready for use without any further action.

  • Page 12: Selecting The Module For Motor Control Feedback (High Performance Drives Only)

    Selecting the module for motor control feedback (high performance drives only) If the SI-Encoder V2 module is required to be the source of control feedback for the drive then Motor Control Feedback Select (03.026) on the drive should be set to one of the following settings depending on which option slot the module is installed in.

  • Page 13: Parameters

    Safety information Introduction Mechanical Installation Electrical Installation Getting Started Parameters Diagnostics Parameters Logic diagram Figure 6-1 SI-Encoder V2 logic diagram Revolution Counter Position Fine Position mm.028 mm.029 mm.030 Encoder Feedback Interface Turns Bits (mm.033) A, DATA Active Alarm (mm.022) Lines Per Revolution (mm.034) Supply Voltage (mm.036)

  • Page 14: Single Line Descriptions

    Off (0) or On (1) mm.114 Freeze Sensor Delay 0.0 to 250.0 µs 0 µs Read / Write Read-only Bit parameter Text String Num Number parameter Binary parameter Destination No default value Non-copyable Protected Filtered User save SI-Encoder V2 User Guide...

  • Page 15: Parameter Descriptions

    Power-up write Type 16 Bit Volatile Display format Standard Coding RO, ND, NC, PT This parameter displays the ID number for the option module. For the SI-Encoder V2 module this is 105. mm.002 Firmware Version Minimum Maximum 99999999 Default Decimal places...
  • Page 16 Display format Standard Coding Device Type (mm.038): AB This parameter must be set to the number of lines per revolution for the encoder connected to this module. Device Type (mm.038): SMART-ABS, Sankyo This parameter has no effect. SI-Encoder V2 User Guide...
  • Page 17 If Auto-configuration Select (mm.041) is left at its default value of Full (1) or set to Partial (2) then this parameter is set-up automatically if an AP05001 encoder is connected on power-up and each time the device is re-initialised. SI-Encoder V2 User Guide...
  • Page 18 If this bit is set then the low resolution indication from the encoder is ignored, and Low Resolution trip is disabled. See section 7 Diagnostics on page 27 on page for a list of the trips that can be initiated by this option module. SI-Encoder V2 User Guide...
  • Page 19 Under these conditions, without a filter on the feedback, it is possible for the speed loop output to change constantly from one current limit to the other and lock the integral term of the speed controller. SI-Encoder V2 User Guide...
  • Page 20 The minimum delays are shown in the table below. This parameter defines an additional delay that is added to the minimum delay. Device Type (mm.038) Minimum delay AB (0) 100 ms SMART-ABS (1) 1.5 s Sankyo (2) 500 ms SI-Encoder V2 User Guide...
  • Page 21 Although the user comms system can be used when the drive is enabled, to avoid any possible transients the user comms system should be used when the drive is disabled. SI-Encoder V2 User Guide...
  • Page 22 If an error occurs there will still be a receive message in the buffer. In response to a read command the data will be zero. When the message has been read User Comms Receive Register (mm.069) will show the status and the status bits will indicate the reason for the error. SI-Encoder V2 User Guide...
  • Page 23 Battery alarm. The battery is below the allowed threshold while the encoder is powered up. Bits 0 to 7 are being updated. If this bit is zero then Bits 0 to 7 show the value the last time the data was read from the encoder. SI-Encoder V2 User Guide...
  • Page 24 2 and the drive should be reset to clear the trip and re-initialise the encoder. Alternatively, this parameter can be set to 1 or 2 and the encoder can be initialised with Initialise Position Feedback Devices (03.075), but this will only internally reset the encoder and initialise it, and not clear the trip. The type of reset performed is given in the table below. SI-Encoder V2 User Guide...
  • Page 25 For SMART-ABS or Sankyo encoders the time of the freeze event is captured with hardware and then interpolation, based on the change of position during the previous 250 µs period, is used to estimate the position at the freeze event. SI-Encoder V2 User Guide...
  • Page 26 Key to parameter coding Read write Read-only Text string No default value Not cloneable Protected Unipolar or bit parameter with default of 1 Voltage rating dependent Filtered Variable maximum Destination parameter Pseudo read-only SI-Encoder V2 User Guide...

  • Page 27: Diagnostics

    Therefore, the multi-turn position may be incorrect if battery. If a battery is not being used then disable this this trip occurs. trip with Bit 4 in Error Detection Level (mm.040). Indicated by Bit 6 of Position Feedback Signals (mm.070). SI-Encoder V2 User Guide...
  • Page 28 These trips are indicated by the encoder. The internal indication is not cleared unless the appropriate mode in Encoder Initialisation Mode (mm.075) is set. If the internal indication is not reset it will not be possible to clear the trip. See section 7.2.1 below. SI-Encoder V2 User Guide...
  • Page 29 Clear error indications within the encoder. The multi-turn position is not affected. Use this setting to clear encoder error indications such as a Low Battery trip. Multi-turn Reset (2) Clear error indications within the encoder and reset the multi-turn position. SI-Encoder V2 User Guide...
  • Page 30 0478-0705-01...

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