2011/7/3 Viesturs Lācis <[email protected]>: > 2011/7/3 Andrew <[email protected]>: >> 2011/7/3 Ted Hyde <[email protected]>: >>> He mentioned DMM-tech, which use an absolute position encoder (I >>> think it is used for phase-control too, instead of Hall sensors). >>> I think DMM are missing a trick by not outputting emulated quadrature >>> pulses from the drive. >> >> I'm afraid so. And there seems no encoder outputs from the driver. > > There is _no_ encoder output from DMM's servo drives - I was > discussing this question with them few weeks ago. It is theoretically > possible, but that involves changing driver software and that means > extra cost.
For the price, it should be expected. By the way, DMM requires 0...+5V input, and 7i48 has -10...+10V output, it doesn't fit. 7i65 has all output voltage options, but it's too expensive. As 0...5V can be easily done from PWM with RC chain... I might try to find some inexpensive SPI encoders, connect them to 7i43 and go without daughter encoder cards... or give up analog mode for DMM at all =) If I could just connect their encoders in parallel here and there... I just ordered single 7i43 with Czech post shipping. Andrew ------------------------------------------------------------------------------ All of the data generated in your IT infrastructure is seriously valuable. Why? It contains a definitive record of application performance, security threats, fraudulent activity, and more. Splunk takes this data and makes sense of it. IT sense. And common sense. http://p.sf.net/sfu/splunk-d2d-c2 _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
