Difference between revisions of "IONI firmware releases"

• Initial version

• Address an issue where device may trigger watchdog reset under heavy use

• Fixes
  • Fix Phasing a.k.a. phase search current calculation when Thermal time constantMTC is set below 400 seconds. Avoids too high current flow to motor.
  • Fix overcurrent condition observer (OC fault was not always triggered when it should).
  • Fix incorrect setpoint scaling when using Setpoint smoothingCIS Setpoint smoothing function (before 1.0.2 CIS caused setpoint to incorrectly scale by 1:2)
  • Fix functionality of GPI5 input (homing start)
  • Fix override parameter function (more info: Reading and writing an arbitrary parameter with Granity)
• Improvements
  • Reduce Phasing a.k.a. phase search current to avoid motor heating at initialization
  • Improve open loop stepping motor performance
  • GPO3 (fault output) will be push-pull instead of open drain when electrical interface is set Standard (for IONICUBE 1X compatibility)
  • IONI Indiegogo campaign drives have 18 Amp maximum current limit instead of 15 A (serial number based)

• Fixes
  • Fix clear faults command by Enable signal in IONICUBE electrical interface mode
  • Fix PWM setpoint operation after setpoint source has been changed from pulse/direction to PWM
• Improvements
  • Stepping motor has automatic current reduction/boost depending on whether motor is standing still or rotating (switch between configured continuous and peak current).

• Fixes
  • Address an issue where Achieved torque readout & graph was showing only zero
• Improvements
  • Improve Phasing a.k.a. phase search algorithm speed

• Fixes
  • Fix incorrect (too high) current scale for Brush DC motors
• New features
  • Added Measure motor resistance and inductance function
• Improvements
  • Extend the maximum range of resistance and inductance parameters from 32 ohm & mH to above 100 ohm & mH

• Fixes
  • Address an issue where overspeed fault (parameter Over speed faultFEV) has no effect and not causing fault
• New features
  • Added support for analog SinCos encoder feedback device in IONI Pro model
  • Added Torque mode application specific attributes (rotation angle limit & torque scaling by analog input)
• Improvements
  • Increase feed-forward gain sensitivities: velocity FF Velocity feed-forward gainVFF sensitivity is 30 times higher, and acceleration FF Acceleration feed-forward gainAFF is 300 times higher than before
  • Increased Phasing a.k.a. phase search algorithm motor swing to allow successful phasing in the case where motor motion is blocked in one direction
  • Motor inductance & resistance measurement function (introduced V1.1.0) adjusted to be less sensitive to motor motion during the test

Note: if acceleration or velocity feed-forward gain parameters are non-zero, re-tune the AFF and VFF gains after upgrade!

• Fixes
  • Address an issue where GPI5 did not start homing
  • Fix signal offset compensation calculation in PWM and Analog setpoint modes (applies when Setpoint offset nullingCAO is non-zero and Enable direction inputCED is enabled)
• Improvements
  • Reduce sensitivity of gain parameters to suit better for very high resolution feedback devices:
    • Velocity P gainKVP and Position P gainKPP have sensitivty of 1/5 compared to to earlier firmware (to preserve old gain, multiply old gain values by 5 after upgrade)
    • Velocity feed-forward gainVFF has sensitivty of 1/10 compared to to earlier firmware (to preserve old gain, multiply old gain value by 10 after upgrade)
  • Increased maximum value range of gain parameters from 32767 to 300000

• Fixes
  • Stepper motor mode no longer reduces motor current in steady velocity motion (reduction occurred when a long motion setpoint was commanded via serial command)
  • Target reached status made to work properly
• Improvements
  • Homing current limit Motor current limit during homingHMT parameter is now effective also in stepper mode

• Fixes
  • Fix PWM+Dir setpoint mode (was giving only setpoint zero in FW 1.2.1 and 1.2.2)
• Improvements
  • Drive current limit increased to 18 A in IONI Pro model

• New features
  • Support IONI Pro HC drive model
  • Added IONI Pro feature to compensate motor torque cogging and ripple
• Fixes
  • Avoid overcurrent problem after Phasing a.k.a. phase search with high current motors
  • Allow outputting the 18 A current on IONI Pro (was still limited to 15 A in previous version)
  • Servo ready status updated correctly now
  • Addressed an issue where GPO5 output did not change state
  • Reduced sensitivity to overcurrent fault when using DC motor
• Improvements
  • Drive current limit increased on DC motor mode on all IONI models:
    • 19.5 A on IONI
    • 23.4 A on IONI Pro
    • 30.0 A on IONI Pro HC
  • Added possibility to disable hard stop detection in homing (set zero to Hard stop detection thresholdHMH)
  • Position mode error recovery motion mode now uses velocity limit Acceleration limitCAL, not Homing acceleration limitHMA
  • Hard-stop homing parameterizing made more logical - now Offset move after homingHMF can be left zero without issues

• Improvements
  • Reduced torque control noise (audible). Noise reduction is active when Torque bandwidth limitTBW is set 680 Hz or less.

• Improvements
  • IONI Pro HC model maximum output current in AC/BLDC/Stepper modes increased to 25A (was 23A)
  • Re-implemented torque controller using 32 bit floating point arithmetics instead of integer arithmetics (at least theoretical precision improvement)
  • DC motor mode no longer requires parallel connection of drive output phases if current is at most 50% of drive's maximum output current capability (sensitivity of overcurrent fault with Fault ID 440219 is greatly reduced).
• Fixes
  • Changed limit switch polarity: earlier limit switches needed to be normally open (NO), while drive specifications say that they are normally closed type (NC). Now limit switchers are NC (switch conducting -> motion allowed, switch open -> motion stops).
  • Fix an issue where AC/BLDC motor initialization could become incorrectly phased when Hall sensors are enabled
  • Address an issue where torque was 5% lower than setpoint with TBW parameter value of 4700 Hz

• Test the upgrade with caution due to significant internal changes
• If system uses limit switches, they need to be wired differently after upgrade, or disable them with LFS parameter

• New features (IONI Pro/Pro HC only):
  • Notch/peaking filter for torque setpoint
  • Torque mode effects added: damping, friction and inertia
  • Homing function that works in all control modes
  • Power consumption limit parameter added (allow setting maximum power driven to motor)
  • SimuCUBE support added in Electrical interfaceCEI. In SimuCUBE mode:
    • STO input acts also as Enable and Clearfaults input
    • Regenerative resistor drive algorithm is tuned for SimuCUBE (tip: use 48 VDC PSU and set Over voltage fault thresholdFOV to 49-50V)
    • Power consumption limit is smoother in SimuCUBE mode than in other modes
• New features (all models):
  • Support for fast setpoint command added in SimpleMotion V2 protocol
  • In torque mode the Tracking error capture channel now displays the difference between raw unfiltered setpoint and realized actual torque in milliamperes
• Improvements
  • Smoother multi-axis operation in buffered motion stream mode (SimpleMotion V2)
  • Drive now performs a self-test of the internal RAM of controller at every power-on
• Fixes
  • Address an issue where fault location 6601 was rarely induced after power-on

• Test the upgrade with caution due to significant internal changes
• Use Granity V1.10 or later to access the new features

• Improvements
  • Operation of regenerative resistor drive enhanced in SimuCUBE Electrical interfaceCEI mode
• Fixes
  • Address an issue where homing could act erratically (i.e. perform homing twice in a row while one homing is requested)
  • SimpleMotion watchdog/keepalive feature fixed (was broken at 1.5.0)

• New features
  • It is now possible to use torque cogging & ripple compensation parameters for open loop stepping motors to reduce stepper noise and vibration
  • New safety feature: monitoring of actual torque vs target torque. If torque is significantly above torque setpoint (i.e. loss of torque controller stability occurred), then drive will stop in over current fault with Fault location 442001
• Improvements
  • Eliminated motion glitch during motor initialization
  • Enhanced open loop stepper signal processing: motor will stay quiet at stand still at any angle (note: KVI and KVP values need to changed, see Using stepping motor with IONI for details.
• Fixes
  • Fixed buffered motion stream glitch that could sometimes cause corruption of instant SimpleMotion command return values while buffered motion is running. Typical symptoms of this glitch are Fault location 480501 and skipping of motion samples.
  • Addressed instability of torque controller with high coil resistance motors

• Fixes
  • Addressed V1.5.2 velocity feedback bug when using Sin/Cos encoder. Symptoms were instability of velocity and position control mode and instability of torque mode effects.

• Improvements
  • General purpose inputs (GPI-pins) of drive are now noise/glitch/debounce filtered. Now digital input state change requires that signals stays stable for 10 milliseconds.
  • Prevent overloading of regenerative resistor by the means of:
    • Drive will not enable regenerative resistor until HV DC bus voltage has been within valid voltage range at least once
    • Pulsing frequency of regenerative resistor has been increased
    • Maximum heat load of regenerative resistor in SimuCUBE mode has been reduced
• Fixes
  • I²t protection time scale is corrected (earlier versions had wrong scale in Thermal time constantMTC, in earlier FW versions, the effect of MTC value was about 80% of what it should have been)