Toshiba TB6600

[MooseCat]

I could be wrong, but isn't this the calculation of your maximum lift:

1kg ~= 35oz so 175oz/in = 5kg/in

8cm shaft = 3.15 inch

Max lift = 5/3.15 = 1.59kg

Edit: oh, are you trying to lift 1kg or 10kg? You mention both values.
I think even 1kg will be iffy to control as the quoted torque is peak torque. The actual torque varies over the step(?).

[lucas]

I received my drivers and checked the schematic posted in this thread. I have redone the schematic with designations matching the board. As noted before the WARN LED circuit is not correct. Further I have found that two of the unused inverters have been left floating. So there may be noise problems on the board.

Good job, wich brand are the drives and did you use them already?

But I don't understand how that idle current reduction can work.
It's based on C2 wich is charged instantly to 5V by Q1 during the step pulse and then discharged by the 10K resistor.
The TQ input will be driven high by the 2 inverters when the voltage of C2 reaches +-1.6V, the chip is now in 100% current mode.

But the timing constant for a 100n and 10K resistor is approx. 1msec. This means that the drive is only in 100% mode for a period of 1msec after reception of a step pulse. I think this is way to short for slow stepping, TQ will only remain high at step rates above +-1Khz. At 1/8 microstepping this would correspond to 0.6 RPS or 36 RPM before full torque is available.

I guestimate that it takes +- 100msec for the motor to complete and stabilise the actual move of a single step so the timing constant for the RC network should be at least 100 times higher.

All the above values are not exactly calculated but should be close, I ordered a drive to check this a few days ago.
I can't wait to see the waveform on the current resistors when stepping at something like 50-100 Hz and compare the low speed torque with the THB6064 drive.

[lucas]

The drive arrived yesterday, I expected something similar inside the cover but it's completely different.
I opened a new thread for this one.

[James Newton]

Wow CNCZone really makes it difficult to post these days. At least on older computers.

Luc's new thread about the Chinese TB6600 drivers is here:
http://www.cnczone.com/forums/steppe...rive_ebay.html

[Kochevnik1]

Hi. Can you help me reduce noise on TB6600HQ driver?
I create driver by datasheet schematics, but when drive in idle it makes too much noise in some positions (use 1/8 step). Is any way to reduce this noise from drive?

[riphet]

Hi. Can you help me reduce noise on TB6600HQ driver?
I create driver by datasheet schematics, but when drive in idle it makes too much noise in some positions (use 1/8 step). Is any way to reduce this noise from drive?

Check the OSC frecuency (pin23)

Oscillation frequency fOSC WITH External resistance Rosc = 51 kΩ
Min 2.8 MHz
Typ. 4 MHz
Max 5.2 MHz

[H500]

[QUOTE=Kochevnik1;1467864
I create driver by datasheet schematics, but when drive in idle it makes too much noise in some positions (use 1/8 step). Is any way to reduce this noise from drive?[/QUOTE]
In a properly done circuit, the 6600 is silent at idle. If it isn't the most likely causes are
-using wire wound current sense resistors. Replace them with surface mount chip resistors.
-improper layout. I will comment if you post a photo of your board.

[ashsab]

Please I'm really struggling with the TB6600 , can any one help me on this thread :

The Shapeoko Forum ? View topic - PnP Proximity Sensor with the TB6600 Controller

[ngoanhtu]

I'm testing with tb6600 driver DIY, because TB6600 is fixed decay mode 40% so stepper motor emits sounds. How do I fix this ?
Please help me.

[dmalicky]

This is a chopper driver -- I think these always make noisy steppers.

[ngoanhtu]

sorry, you can example for me ?

[James Newton]

A certain amount of noise is expected when using a chopper driver, but the 6600 is especially loud as far as I can tell... the TB6064AH is much quieter. The Linistepper is very quiet if that is a hard requirement for you. Some research places use it to position sensitive sensor probes, because if they use choppers, the EMF and vibration from the motors swamps the signal they are trying to pick up.

[CNC3DS]

you can check and refered stepper motor at : https://cnc3ds.com/collections/dong-co-buoc-step-motor

[shikankien]

Very interesting, but I do not have any experience with it.