Chinese 6040 stepper drives

[Jed Clampit]

after comparing the two boards i think i could match most of the wiring up. the only ones i am unsure are marked up on the YOC335 board as DIR +, DIR- and PUL+, PUL-
on the TB6560 board they are CW+, CW- and CLK+, CLK-
it doesn't look like the EN+ - are used

[john swift]

yes your correct

the odd thing about these boards is the enable is a negative logic input
the board is enable with no input and disabled by a 5V enable signal !!!

the TB6560 CLK = YOC335 board PUL

TB6560 CW = YOC335 board DIR

connect the +5V wire (or wires) from the breakout board to the +CLK & +CW (positive clock & positive clockwise

the BOB's - PUL (negative pulse ) to the TB6560 - CLK (negative clock)

the BOB's - DIR (negative direction ) to the TB6560 - CW (negative clockwise)


without the data for the original drivers or motors we don't know what the motor current is

I would start with switches SW! to SW3 &S1 set to 1.5A
S2 for stop current 50%

if the torque is lower than with the YOC335 board increase the current in small increments and re test
if you set the current too high the motor will over heat

as we don't know the setting for the number of microsteps
try S3 &S4 set to 8 micro steps
if the axis moves too far set it to 16 micro stepps

you may need to make other adjustments in Mach3

John

[Jed Clampit]

ok that makes sense John

now to the switches, i thought this might be easy but no lol

on the YOC335 i have

pulse/rev = 1600
decay mode = 0%
peak/rms = 3.5/1.8
switch 7 set to half current

so am i right in thinking the TB6560 should be set like this
sw1 = on
sw2 = off
sw3 = off
s1 = off
giving a working current of 1.6

s2 (stop current) i am unsure off

s3 = off
s4 = on
the above two switches are marked as excitation mode which i presume is the pulse/rev so i have it set to 16

s5 = off
s6 = off

[Jed Clampit]

having watched this video https://www.youtube.com/watch?v=KRoe4_XM884 i think my voltage should be set to maximum ie SW1,2 and 3 on and S1 off giving a current of 3amps ???

and after watching this video https://www.youtube.com/watch?v=Oy8vDJTGCY4 the S2 should be set to off as i don't want the motor to move

[john swift]

the motor current set by SW1,2 , 3 and S1 depend on your motor
the one in the youtube video may not be the same as yours

if it has a partnumber that enables you to download the motors data sheet
it will make it easy

without the information I would start at about 1.5 A

the YOC335 switch 7 set to half current = the TB6560 S2 (stop current) set to 50%

with a 200 step/rev motor
the YOC335 pulse/rev = 1600 gives you 1600/200 micro steps = 8

so you need to set the TB6560 switches S3 & S4 to 8 (both to 1)

John

[Jed Clampit]

i was going off the setting of the YOC335 Peak 3.5a and RMS 1.8a so i thought the peak would be the same.
i have had a look and there are no identifying information on the motors but in the info i received with the machine it say they are two phase 57/3 stepper motor. i presume that stands for series 57 and 3amp but the only info i can find says the revs are 600 for this motor, you might know better ?
now switch seven makes sense

[Jed Clampit]

OK i have finally got round to wiring everything up and it seems to work other than the fact that the motor sounds very rough and missing steps.
any ideas how to fix ?