Argon firmware 1.4.2 released

While we’re finalizing the Argon firmware 2.0 for official release, we have brought several of the 2.0’s fixes and improvements to the current official firmware version 1.4.2. Get it from the wiki!

Standard firmware version

  • Fixes & adjustments:
    • Added additional protection interlocks for drive’s internal in-rush limiter (reliability improvement)
    • Reduce sensitivity of resolver feedback device no-signal failure (fault location code 890101)
    • Increased upper limit of HV DC bus supply (parameter FOV increased)
    • Effectiveness of regenerative resistor improved
    • Speed of Phasing a.k.a. phase search increased
    • Current setpoint during Phasing a.k.a. phase search reduced to reduce unnecessary motor heating during power-on

Racing simulator special version

  • Additional changes to simulator wheel special version:
    • Eliminate Phasing a.k.a. phase search error in 110-120 VAC power networks
    • Duty cycle limit parameter (6110) now has 200% scale in 110-120 VAC power networks to have equal effect compared to 220-240 VAC networks

For those who don’t know yet, Argon is being used in many professional racing simulator systems. For introduction, see the comparison below:


Argon stock status announcement

Dear Granite Devices customers, we have temporarily ran out of Argon servo drives recently due to increased popularity (great!) and unfavorable variations in the production time (not so cool) occurring at the same time. A longer than usual production lead time is caused by limited stock availability of certain third party electric components. We have to wait until beginning of August to receive new 300 pcs delivery of Argon drives.

However, we have kept back a small number of Argons for emergency needs. If you need one very urgently and absolutely can’t wait for the delayed delivery, contact us by email at sales (at) Those who have ordered the drive before the outage and are waiting over the unexpected delay will receive a 100 euro discount/refund per drive as compensation. Discounted orders are the ones made between the dates 13.6 and 25.6.

To reduce greatly the chance of outages in the future, we are starting to stock the most critical components in order reduce lead time variations.

Meanwhile all IONI series products are in stock and shipping normally. If you wish to change your order from ARGON to IONI, or make other changes to your order, please drop us email.