Help on fault finding on a C3-31 Hammer combination machine

[OMLCNC]

Drawing any better Nick?
Translation from German:
1 Home
2 Switching Unit
3 On Off Switch
4 Overload Protection
5 Contactor
6 Auxiliary Contactor
7 Braking Circuit
8 Transformer
9 Fuse
10 Selector Switch
11 Limit Switch
12 Emergency Stop
13 Emergency Stop
14 Motor – Saw
15 Motor – Spindle Moulder
16 Motor – Planer
17 Plug
18 Limit Switch
19 Limit Switch
20 Terminal Strip

Yes the motors are 3 phase run from a Transwave inverter.

So disconnect wire R7 from the contactor to eliminate the Braking circuit?

Does it trip when you start a motor or when you press a stop button ?

It trips or won't start when you press the start button. Contacts flash, chatter. But it does run on all three motors once it decides to hold the contacts in.
But I don't think the contactor will last long if I keep using it like this.

Thank you for your suggestions I will have another look at it tomorrow.