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Author Topic: Motors stalling /growling  (Read 2264 times)

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Offline TPS

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Re: Motors stalling /growling
« Reply #80 on: June 04, 2019, 05:12:48 AM »
Here is the final settings:                X settings
Y & A axis settings:                         steps 7100
steps: 6940                                    velocity 60
velocity: 59                                     accel    8
accel: 8                                          step pulse 5
step pulse: 5                                   dir pulse  5
dir pulse: 5

why did you not use the recommended 8128 steps/per ?
anything is possible, just try it.
if you find some mistakes, in my bad bavarian english,they are yours.
Re: Motors stalling /growling
« Reply #81 on: June 04, 2019, 07:58:34 AM »
I will try and test the volts.
I did buy another BOB and not change. tried the MDI but the motors where very slow and rough sounding.
I did use the 8128 but could not get motors to run very well. I tried those numbers after the ESS install and had to go somewhere around 7000 steps, velocity 60, accel 8 .  set the dip switches as recommended. still same problem. If I understand the ESS it does allow me to use 64 bit instead of a 32 computer and did upgrade to 64. should I go back?
I do not have a oscilloscope.

Offline TPS

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Re: Motors stalling /growling
« Reply #82 on: June 04, 2019, 08:03:34 AM »
the 8128 steps/per is a value witch is given trough your microstepping and Resolution of your ballscrew.
in other word's it is fix and no parameter to Play with.

what exact motortype are you using?
what bob are you using?
« Last Edit: June 04, 2019, 08:05:49 AM by TPS »
anything is possible, just try it.
if you find some mistakes, in my bad bavarian english,they are yours.
Re: Motors stalling /growling
« Reply #83 on: June 04, 2019, 08:30:22 AM »
I an using nema 34 and the breakout board db25-1205. Ok ill set that back to 8128

Offline TPS

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Re: Motors stalling /growling
« Reply #84 on: June 04, 2019, 01:17:05 PM »
I an using nema 34
ok i was asking for a exact Motor Label/number, because nema 34 is like you say "i drive a green BMW",
there are hundreds of nema 34 brands, and i wanted to doublecheck the Motor wiring.-> waiting  for reply


and the breakout board db25-1205.
here i found a manual

Ok ill set that back to 8128
just to clarify this will not solve the Problem, but the 8128 steps/per is a given value based on your Setup and Needs not
to be modyfied.
anything is possible, just try it.
if you find some mistakes, in my bad bavarian english,they are yours.
Re: Motors stalling /growling
« Reply #85 on: June 04, 2019, 01:41:59 PM »
This is the label on motor:

Longs Stepper Motor
model: 34HS5435C-37B2
3.5A (U) 1.8deg/step

Offline TPS

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Re: Motors stalling /growling
« Reply #86 on: June 04, 2019, 02:25:07 PM »
ok lets start again, i only want to double check everything.

Motor 34HS5435C-37B2:

red    -> DM860A   A
green  -> DM860A   A-
yellow -> DM860A   B
blue   -> DM860A   B-




DM860A:

dip switches current
SW1 -> OFF
SW2 -> OFF
SW3 -> ON

dip switches micro stepping
SW5 -> ON
SW6 -> OFF
SW7 -> ON
SW8 -> ON

wiring signals
PLS+ -> DB25-1205 pin 2
DIR+ -> DB25-1205 pin 3
PLS- -> DB25-1205 pin GND
DIR- -> DB25-1205 pin GND
(only for the x-axis)

V+  -> Power Supply +
GND -> Power Supply GND



BOB DB25-1205 minimal wiring for x-axis

pin 2 -> DM860A PLS+
pin 3 -> DM860A DIR+ 
pin GND -> DM860A PLS-
pin GND -> DM860A DIR-

pin VDD -> external power supply 5V
pin GND -> external power supply GND

JN1 connected
JN2 connected

JN4 here i am not realy sure what the manual is trying to tell me



ethernet smoothstepper minimal wiring

25pole ribbon cable to db25 connector for BOB
ethernet cable to pc
external power supply for 5V connected


motor tuning settings (we discused a lot)
steps/per 8128
vel 60
acc 12






hope i got the mayor things, pls take the the time to go through this list step by step and doublecheck,
i have taken the time to create it.
anything is possible, just try it.
if you find some mistakes, in my bad bavarian english,they are yours.
Re: Motors stalling /growling
« Reply #87 on: June 04, 2019, 08:40:06 PM »
I took the list and went one by one, I had the number 1 switch turned on so turned it off. the only thing I did not know about is the JN1 and 2 so unable to check that. All else match the list. Tried running only the x axis in the jog mode. Did not sound good. Than ran x in the demo mode, still stalling, more so when starting and changing directions. When running the motor sounded good other than the stalling. Did the DMI and setting was 8128 matched the list. I did try changing the vol and acc but did better at 60 and 12. Changed drivers no improvement, change BOB no improvement. Checked connection no problems that I could find. tried checking the power when in stall but not enough hands. will do that with help.

Offline TPS

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Re: Motors stalling /growling
« Reply #88 on: June 05, 2019, 01:22:07 AM »
can you post a Video with Sound?
anything is possible, just try it.
if you find some mistakes, in my bad bavarian english,they are yours.

Offline Tweakie.CNC

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Re: Motors stalling /growling
« Reply #89 on: June 05, 2019, 01:37:46 AM »
Quote
Checked connection no problems that I could find. tried checking the power when in stall but not enough hands. will do that with help.

To add to my earlier post...

You need to be looking for a voltage drop when the motors start growling or at the instant of motor stall.

Tweakie.
Success consists of going from failure to failure without loss of enthusiasm.  Winston Churchill.