Have you actually measured the A and B outputs of the encoder at 10v? I see that it takes an 8-24vdc input voltage, but I would expect it to still generate 0 and 5v output levels. Nothing in the datasheet seems to specify the output levels for the push-pull output option (which your p/n has).
Pity there isn't an actual manual for the drive available, as it also might be capable of tolerating a voltage higher than 5v on the A+ and B+ inputs. The datasheet doesn't specify voltage levels. -- Ralph ________________________________________ From: Todd Zuercher [[email protected]] Sent: Thursday, July 23, 2015 6:34 AM To: Enhanced Machine Controller (EMC) Subject: [Emc-users] Encoder Voltage? I am trying to replace a control that died and had to change the drive too. I picked up an AMC DR100EE30A40NAC cheep on ebay. link to the spec sheet for the drive http://www.a-m-c.com/download/datasheet/dr100ee30a40nac.pdf Like most drives this is set up for 5v encoder (either single or double ended). The problem is that the encoder from the old system was set up using a 10v single ended signal. The old encoder is an Eltra EH63GB500S8/24P10X3PR8 link to the encoder specs http://rankinusa.com/products/files/932e6_15.%20EH-EF%2080%20C-P-K.pdf What would be the best way to use this encoder with this drive? I tried to ask this question while the mail list was down. So I also asked on the forum PCW answered there with the suggestion of using a couple of 330ohm resisters to make a voltage divider. I'll probably do what PCW suggested. Does anyone else have any differing opinions? How does one calculate what would be the right size resisters to use in something like this? -- ======================================== Todd Zuercher mailto:[email protected] ======================================== ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
