Bigtreetech Scylla V1 firmware installation.

[Stevo]

Just typed in M453 and i think all the 3d printer stuff has been removed 

 

[Stevo]

Done myself a prompt sheet 

SCYLLA INITIAL SETUP INSTRUCTIONS.txt

[Stevo]

Couldn’t get the name change to stick keeps reverting back to milo ?

[PFarm]

Try changing it in general. The name is also limited to 15 characters no special characters

Edited February 6 by PFarm

[Stevo]

Hi wanted to ask why do the stepper motors need 48V when the steppers use much less ?

Stepper motors 60BYGH401-03.pdf

[PFarm]

Running steppers at 48V allows for more speed without losing torque.

[Stevo]

Hi what gauge wiring are you using for your 48v supply please.

[PFarm]

Mine a 36V. power supply had it from a previous build. I use 18gauge.

Edited February 8 by PFarm

[Stevo]

Why does the contactor have to be 4 pole please ? struggling to find one would something like this work?

sourcing map 1 Pcs DC 24V 4 Channel Relay Module Switch Board Shield 30A High or Low Level Trigger for Electronics Industrial Home Automation : Amazon.co.uk: Business, Industry & Science

Edited February 10 by Stevo

[PFarm]

It doesn't have to be 3 pole works - 2 poles for incoming 220V wire and the third is to cut power supply ground to the Vmotor. A 2 pole with a normally open contact will work as well.

 

[Stevo]

2 minutes ago, PFarm said:

It doesn't have to be 3 pole works - 2 poles for incoming 220V wire and the third is to cut power supply ground to the Vmotor. A 2 pole with a normally open contact will work as well.

Would the item i attached in previous post work ?

 

[PFarm]

On 2/3/2025 at 2:37 PM, Stevo said:

Found these on Amazon in my basket suitable ?

This one? If so yes

[Stevo]

Do you have a wiring diagram as such so i can see how this and the other relay work within the wiring please.

I dont have anything like this in my current setup so just trying to visualise how this all talks to each other 

 

[Stevo]

I have bought both of these but the contactor is 24V AC not DC 

 

Wengart Household AC Contactor WCT-63,AC24V 63A Longer Lifespan, Energy Efficiency, and Reliable Performance for Your Modern Home (4NO) : Amazon.co.uk: Business, Industry & Science

Heschen Single Phase DC/DC Solid State Relay, SSR-40DD, Input 4-32VDC, Output 24-220VDC, 40A 50-60Hz : Amazon.co.uk: Business, Industry & Science

Edited February 10 by Stevo

[PFarm]

1 minute ago, Stevo said:

I have bought that one then noticed its 24V AC

Wengart Household AC Contactor WCT-63,AC24V 63A Longer Lifespan, Energy Efficiency, and Reliable Performance for Your Modern Home (4NO) : Amazon.co.uk: Business, Industry & Science

I needs to be 24V DC I'll put together a wiring diagram for you and post it in here.

[Stevo]

1 minute ago, PFarm said:

I needs to be 24V DC I'll put together a wiring diagram for you and post it in here.

Great thanks 

[Stevo]

Just found this one seems to be to your spec 

BCH8‑63 4NO Voltage Contactor 63A 400V Modular Coil Switch 24V❀ | eBay

Edited February 10 by Stevo

[PFarm]

7 minutes ago, Stevo said:

Just found this one seems to be to your spec 

BCH8‑63 4NO Voltage Contactor 63A 400V Modular Coil Switch 24V❀ | eBay

Yes looks like coil will work on 24V DC or AC.

[PFarm]

Here is a wiring diagram for the contactor and SSR. When the e-stop is pushed it opens the negative to the contactor coil the VFD is powered down, and the negative to the Vmotor is opened through the contactor n/o contacts, the signal to the E-min end stop is triggered and does and software e-stop. This requires input from the operator that all is clear to reset the machine. L3-T3 can be used for future disconnection of other devices.

Note: Edited diagram

As for the water pump, it will turn on when the VFD starts to spin the VFD setting for PD050 should be set to 1 by default.

 

Rename estop.g.example to estop.g and enter PD_15 as shown below. Save and M999.

Edited February 10 by PFarm

[Stevo]

Thank you that’s very kind still struggling to find a contactor!

[PFarm]

Just noticed that I drew the e-stop with normally open contact they should be normally closed and open when e-stop is depressed.

Edited February 10 by PFarm

[Stevo]

In regards to the the mains input on the top left which one is positive and neutral ? 

[PFarm]

12 minutes ago, Stevo said:

In regards to the the mains input on the top left which one is positive and neutral ? 

For the VFD there is no specific terminal for neutral.

[Stevo]

2 hours ago, PFarm said:

For the VFD there is no specific terminal for neutral.

I understand but the 240v going into the contactor must have to be a specific way round as it affects how the other items are wired in the circuit ie the water pump to the SSR ?

[PFarm]

As for other devices like SSR, I'd run the live line directly to the water pump and switch the neutral through the SSR. Sorry if I'm not completely up to speed with 240V wiring in the UK.  The contactor is only used to power the VFD two wires to the main power input terminals R and S of the VFD. The other circuit used with the contactor is cutting the negative of the 48V. DC to the Vmotor (stepper motors) Your 24V and 48V power supplies will have assigned line/neutral terminals.

Edited February 10 by PFarm