Another Biesse Rover 322

My understanding is
P1 is 24V when machine is powered on.
P2, P3, P4 are on based on the condition of the Emergency Device E22 (see columns 14-16 of the drawings)
The Mesa manuals advise not to use power through switching devices.

What drawing?

tray wrote:

Hi,

I too have a 322 building in MESA 7I76 and 7I77 to replace the controller

Did you conclude what the 21V AC was for?
 

Hello fellow 322 owner! You're in for a ride with all those solenoids... What kind of solenoid drive modules does your machine have? The RS485 ones or relay boards in the cabinet?

If I remember correctly, the 21 V AC going into the old controller (RT480 in my case) was just connected to a relay on the old controller's power supply and passed through to some safety device. In case the controls PSU has a failure, the machine wouldn't switch on.

I removed the RT480 controller entirely and permanently connected cable 122 to 123, that were going into the larger green connector.

I did end up using P2, P3, P4 as high-current power supplys for the Mesa 7i66 and 7i64, despite them being possibly switched by E22, the key switch at the cabinet front door (which I don't have a key for anyways) and KE2 (a contactor at the bottom right in the cabinets backside). The cards get their power via SmartSerial from the 7i94 and P1, only the high-current inputs get the other Ps. So far I got away with it, but can't recommend or advise against it.

Please see attached Diagram for unit E22 ( thanks tommy)

Hi Ehb,

EHB: "The RS485 ones or relay boards in the cabinet?"
Tray: RS485

EHB:"I did end up using P2, P3, P4 as high-current power supplys for the Mesa 7i66 and 7i64, despite them being possibly switched by E22, the key switch at the cabinet front door (which I don't have a key for anyways) and KE2 (a contactor at the bottom right in the cabinets backside). The cards get their power via SmartSerial from the 7i94 and P1, only the high-current inputs get the other Ps. So far I got away with it, but can't recommend or advise against it."
Tray: Yup, seems reasonable.  The OEM didnt take short cuts eg delay on timer upon power to ensure the power quality has settled before enabling the machine.If problems arise then adding a PSU later wont be too much of an issue.

Thanks

 

hi.
i'm new here and in automation.
i have an biesse 322 and want to ungrade it.
i was reading entire this topic and i like the solution that you used.
please if you can help me give an answer, i want to have a large discussion in privat
thanks