What should be the max current for Simucube 1, small Mige?

Simucube 1
1

Hi guys,
New on the forum, but have been using the SC1 for about 2.5 years. Which brings me to my doubt :).

When I purchased the SC1 (from SRB), I followed all instructions and installed it myself. Everything worked perfect.
I have reinstalled windows couple of days back (after many many years), and when I plugged my SC, I now notice that in the same profile, the max current is 24.5A! Before the installation, it was at 12A (which I thought is the normal value). I am therefore a bit confused, what is the normal value/which one is safe to use?

(I really don’t remember if I did something to set it, 2 years ago…)

sc1
sc1774Ă—984 29.2 KB

I have the Ioni Pro HC and a 480W PSU (please see below):
specs

2

For small Mige, 12.86 A is the maximum recommended without “overdriving” the motor manufacturer specs.

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3

Thank you Mika.
As a measure of precaution (I tend to forget easily :slight_smile: ), can I “hard set” that value somewhere?

Before, the slider at max was at 12A, now (as in the pic above) it is going up to 24.5A.

4

On granity
Mcc at 10
Mmc at 12

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5

Can you post a screen shot of your Hardware Set-up tab? that should show what your IONI max Amperage is set to.

As Mika Said 12.86A will give you a Max Torque of 20.01Nm, SRB lowered their top output by putting the Maximum Amperage at 12A which limited the top torque to 18.67Nm.

If you run more A to the servo it will overdrive and work to some degree but at a point it will just cause Energy Burnoff in the form of Heat which isn’t really good on the Electromagnets (or the static magnets) in the Servo.

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6

Thank you for all the info guys. Here is a ss with the HW tab. (before my win reinstall, it was also at 12A).

hw

7

Yeah, you probably supplied a new DRC file for Large Mige or something - the Maximum Motor Current does not change at all with a Windows reinstall.

Go to Granity and set the MMC to 12.86 A and MCC to for example 10.50 A.

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8

I did indeed upgraded the encoder to 4.2Mil using the supplied drc. Mistery solved >> weak user (I did not know it will affect it). hides in shame. Thank you all.

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9

you need the Small MiGE Biss-C settings–22 bit: 4.2 mil
cpr resolution

you must have accidentaly downloaded the large one

i told you that bec not only mcc and mmc are wrong when you loaded the wrong drc.

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10

If you want to open up all 20Nm you can use this .drc as well… this is the standard one I have posted over on iRacing…

10010_MAX_480w-48v_BiSSc(22bit).drc (9.2 KB)

actually Opps this would be the one to use with the SRB -

10010_MAX_unlimited-48v_BiSSc(22bit).drc (9.2 KB)

The other one with 480W has the IONI power limiter set to 480W but the SRB units have the SDR - 720w PSU so you will want the unlimited version

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