TB6600 4.5A photos without heatsink

Quick post about TB6600 stepper motor driver module. It should be 4.5A version. It has model marking on the back that says “BL-TB6600-v1.2″. This version has no plastic covering and has green PCB. Since originally everything is covered with large heatsink there is nothing much to see before removing it. Here I share some “closer look” photos I made . Maybe it is helpful for someone who is considering about buying this driver.

I have made video using this drive with 2.8A motor. Current limiting via potentiometer seems to work as intended. I have not determined yet, that is 4th dip switch for 30/100 (manual) current limiting. 4th dip switch seems to affect holding current (video here) and has no effect when motor is turning. You can check out datasheet here where 100/30 limiting is marked as TQ (pin nr 3).

Originally main driver chip is bent against PCB (labels not readable), but for this picture I bent it upwards. It shows that there is TB6600HG in use.

TB6600 v1.2, without heatsink, showing Toshiba TB6600HG main driver chip

TB6600 v1.2, without heatsink, showing Toshiba TB6600HG main driver chip

TB6600 v1.2 green pcb, overview

TB6600 v1.2 green pcb, overview

 

This is top view of the TB6600 driver module. There is view of the potentiometer where power can be limited. Also microsstepping mode selection switch.

TB6600 v1.2 top view without heatsink

TB6600 v1.2 top view without heatsink

Closer look to power limiting and microstepping settings. There is also a 4th dip switch. It seems to switch between 30%/100% holding current.

Microstepping and power limiting potentiometer

Microstepping and current limiting potentiometer

 

Backside has microstepping modes info and model name.

TB6600 v1.2 backside

TB6600 v1.2 backside

 

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