Duet2 wifi: Motor Driver & Connector heating issue

R006

Hello,

I am using a Duet 2 WiFi with RRF 3.5.2rc1.

My setup includes three Z motors connected to the Z, E1, and E2 connectors, with the X and Y motors connected to their respective axes. The motor current is configured at 1600mA for all motors, while their rated capacity is 2500mA.

;M-curr 
M906 X1600 Y1600 Z1600 E800 I50                      
M84 S30

I have observed that when the axes are at their home positions, the motor connectors heat up significantly, which appears unusual. However, after homing, if I jog the axes, the connectors cool down to a normal temperature. Additionally, there is a fan installed that blows air directly onto the board.

What could be the cause of the connectors heating up?
Occasionally, the drivers also overheat. What might be causing this issue, and how can it be resolved?

Looking forward to your guidance. @dc42 @Phaedrux

Phaedrux

@R006 said in Duet2 wifi: Motor Driver & Connector heating issue:

RRF 3.5.2rc1.

Please update to 3.5.4 and see if the be behaviour continues.
Also please post your config.g and homing files.