[MarunovV]

Hi Tom!

I wont do 4th and 5th axis(rotary) with encoder!
Can I connect , with Kflop+kanalog, incremental rotary encoder! TTL or DATA?

Example: heidenhain ROD 426
Manual http://www.auto-met.com/heidenhain/0...20Encoders.pdf

[nickcornilsen]

An incremental encoder will send two channels of pulses, phased at 90 degrees. These encoders are easy to hook to the Kanalog or KFLOP boards. An absolute encoder would require alot more sophisticated circuitry to handle.
Your ROD 426 encoder sents TTL signal, (5V) so you can't send it to the GPIO pin without resistors in series to reduce it to LVTTL (3.3V)

I would assume an encoder like that sends a differential signal. If it does, it can be attached to the JP1 or JP2 differential inputs on KANALOG. If it is a single ended output, Probably to JP5 on the KFLOP board.

[Al_The_Man]

The ROD 426 is TTL differential.
Al.

[TomKerekes]

I think Al is right. It should have differential outputs that can correct directly to Kanalog JP1 or JP2.

Regards

[silvesters]

I have problem with encoder ROD 426e. Do you have a wiring diagram?
I have wires of color:
blue
small brown
brown bigger
gray
red
green
pink
yellow
violet
white small
white bigger
black

I can't find this diagram.

Regards,
Silvesters

[TomKerekes]

Hi silvesters,

Did you try Google?

I found many hits like:

http://www.cnczone.com/forums/attach...chmentid=33637

Regards

[Al_The_Man]

That Looks like a PDF I post a while ago.
blue = +5v (fail sensor)
brown = A
gray = B
red = Z
green = /A
pink = /B
yellow = n.c.
violet n.a on ROD426
white = 0v (fail sensor)
white/green = 0v
brown/green = 5v+
black = /Z
Al.

[silvesters]

Hi,
yes, I used google, and i couldn't find diagram with the colours that i have in my encoder.
I'll try to connect it as shown in this pdf.

Thanks for answers,
Silvesters

[silvesters]

I connected my encoder yesterday. The wiring diagram was ok, but encoder was broken (the wiring to lamp, and the lamp didn't shine). I repair this and all is ok.

Regards,
Silvesters

[alexandr_st]

Hi everyone! Please can you tell me: how to connect right encoder wires to JP4, JP6 3.3v LVTTL?. I bought chinas MPG pendant at ebay.MPG's quality is badest in the world. Therefore i removed naitive encoder and mount simple HEDS 500lines encoder, TTL, 4.8v output. I can't connect encoder wires to other IO, they need me for another tasks. I made two cables and connect to 25pin terminal boards. 16 pins are connected to JP4, JP6 and another 9 pins to OptoIN, OptoOut + GND. Therefore i need to run Panel and pendant from two these connectors only. I used tepminal boards for convenient mounting to electric enclosure Din rail to exlude soldering. May be i need to use pull down resistors? Now wires connected to OptoIn but planing to put there Limits and amps Fault. How to solve this trouble? Few pictures for explanation..
Thank you!

[TomKerekes]

Hi Alex,

The 3.3V inputs on KFLOP JP4 and JP6 will be damaged if driven above 3.8V because they have diode clamping to the 3.3V power supply.

The first 8 of 10 IO on both JP4 and JP6 also have 150 ohm pull down resistors.

Most 5V TTL output do not drive above 3.8V. By specification they only need to drive above 2.8V (which is the same level as 3.3V LVTTL).

So they can usually be connected directly without any problem.

To be sure check the outputs with a voltmeter when driving high and under a 150 ohm load.

If they do drive higher then a series resistor will be needed to keep the voltage below 3.8V. 50ohms should work.

HTH
Regards
TK

[alexandr_st]

Tom, Thank you! I connect encoder directly to JP6. Voltage under load show me 3.5v. Its all work fine. Sorry for my questions: i afraid to burn controller.
Alex