Re: Early "tall boy" Gemini-II
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From: [email protected] <[email protected]> On Behalf Of Brendan
Sent: 04 February 2023 02:30
To: [email protected]
Subject: Re: [Gemini-II_io] Early "tall boy" Gemini-II? David,
There are about 3 versions of the ¡°tall G2s¡±. ?
One with the jumpers and RS232 transorb protection, one without the jumpers but still has the transorbs and another without the transorb on the RS232 chips. ?
Some earlier Tall G2s had some mods to the H bridge (capacitors and resistors fitted) to stop the motors jumping at switch on. ?Not sure if this was just for maxon motors. ?I think there was a stage there was a maxon motor seperate dsPIC firmware. ??? ?This was ¡°way back¡±.
But the firmware supposedly suits all now. ?But the hardware mods may still be in place.?
FWIW?
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Brendan
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David C. Partridge