I'm just rewiring the control board for my CVA lathe, with an inverter motor drive. The lathe had an estop button which shut off all power. I'm concerned about shutting off the inverter drive supply whilst under load, and I'm planning to use the estop to issue a stop command to the drive, which will include some dc braking. There is an 'off' button for the main inverter supply right next to the estop, but it's not the one you would hit in a hurry. Is this a sensible approach? It should, I think, stop the spindle quicker than if I just cut the power, and is unlikely to harm the drive. I could arrange for the estop button to shut off power and 'stop' the drive, this would presumably provide a little braking but what would it potentially do to the drive? Is there a conventional wisdom on such things?
Thanks Tim Dutton Dry-Dock Traditional & Modern canal craft repairs Vintage diesel engine service