How hot do TB6600 drivers run normally ?

**Neale** · 13-09-2015

One thing to remember with stepper motors is that they are still taking current when stationary - this is to hold the motor in position. So the driver will still be working as well. However, a lot of drives switch to "half-current" mode when the motor is stationary so that reduces power consumption and heat dissipation a bit. However, 40C or so doesn't sound that hot to me. My motors get hotter than that in normal operation!

**KevinK** · 13-09-2015

Thanks for your reply Neale.
The temperature I mentioned was of the stepper drivers.
The motors run around 35C
You think 40C is still ok for the TB6600 drivers?

**JAZZCNC** · 13-09-2015

Which are you asking about here.! . . . Hot drivers or Hot steppers. Because you mention both.?

Steppers usually get hot, between 50-80deg is quit normal depending on factors like voltage and current. But drives getting hot isn't a good thing so I'd suggest some cooling to help ease there pain, esp has they are wimps to start with.!!

**KevinK** · 20-09-2015

Sorry to be unclear and thanks for the reply jazzcnc, I was referring to hot drivers.
I got them cooler and a bit more torque by un-ticking the invert pulse mode, and switch the DIP switches to 5 amp.
Not as much torque as inverting the pulse, but the drivers are much cooler.
I red on the following post that the Amps settings of these drivers are correct, and I'm probably save.
http://forum.planet-cnc.com/viewtopic.php?f=9&t=1107

I will do some tests next week to see if the machine has enough torque.If not, I will go back to inverting the pulse rate and ad some fans on the drivers.