I have a table from Ender. It is 24V table with built-in temperature sensor.
I connected table to out0 pins on the mainboard 6hc.
The config file has such strings for bed heater:
; Heaters
M308 S0 P"temp0" Y"thermistor" T100000 B4138 ; configure sensor 0 as thermistor on pin temp0
M950 H0 C"out0" T0 ; create bed heater output on out0 and map it to sensor 0
M307 H0 B0 S1.00 ; disable bang-bang mode for the bed heater and set PWM limit
M140 H0 ; map heated bed to heater 0
M143 H0 S120 ; set temperature limit for heater 0 to 120C
M308 S1 P"temp1" Y"thermistor" T100000 B4138 ; configure sensor 1 as thermistor on pin temp1
M950 H1 C"out1" T1 ; create nozzle heater output on out1 and map it to sensor 1
M307 H1 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit
Thermistor works. It shows room temperature at "Bed temperature field".
When I turn on bed heating, it does not work. The led near out0 is also does not turn on.
The voltage does not change (stays 0.0V).
SO if I wait long enough, I reasonably get a fatal error "heating error"
One more thing is that if I try to turn another heater (out1), nothing changes. It also does not change voltage on out1.
Maybe(?!) I have to something like "activate" heating somewhere else?
Yes, I have M501 string at the end of the config file.