Dynomotion Forum

Great, thanks for clarifying Tom!

Thanks Tom!

Are the general purpose LVTTL pins (1-14) on the Snapamp's JP7 connector 5V tolerant or strictly limited to 3.3V only?

Ok, that's what I thought but I wasn't seeing it between the 12v and ground pins so it made me concerned. But, now that I think about it, I recall the manual mentioning that the 12v supply was a convenience for providing power to other devices and not actually required for driving the kflop circuitr...

Hi, While setting up my replacement Snapamp board for my mill, I discovered what appears to be a short between pins 1 (VDD5) and 8/9 (GRND) on the kflop's JP4 connector. For reference, I checked my other kflop board that I've been using on my lathe for many years and am seeing the same results when ...

The IO's for the JP4 connector on the kflop are all functioning correctly so I think I'm in the clear there. Reaching out now to order a new Snapamp.

Thank you for this information Tom, I appreciate it. And thanks for the offer... I will reach out for the discount shortly.

FYI, I've had this board since about 2010 and it's been running great for me over the years so am happy to continue using your products going forward.

Ok, I just went through the resistors and found the following ones that weren't to spec: R8 (??/??) = ~0.245k ohm (code not legible) R9 (1001/1k) = 0.4k ohm R17 (1001/1k) = 0.45k ohm R15 (1002/10k) = 3.896k ohm R18 (1002/10k) = 3.742k ohm R19 (1002/10k) = 6.77k ohm R21 (1002/10k) = 6.77k ohm R23 (69...

Ok, I did some quick continuity tests on the snapamp board and it looks like the following capacitors have shorts:

C64
C61
C60
C58
C57
C56
C54
C32
C28
C23

Question 3: Does this sound like what could be expected from the damage of reversing polarity to the motor supply inputs?

Ashamed to say that I managed to reverse the motor supply input polarity on my SnapAmp board after replacing a relay to my E-stop circuit and heard a pop followed by the dreaded smoke after powering it on. (The popping sound may have been an in-line fuse that blew.) The smoke appeared to come from t...

FYI, I was able to resolve this by simply typing in the value that I needed and that worked for me.

Thanks