I make a electric motor connected with Alternator, which can create about 60,000Su. However, when the elector motor is connected with drilling machine from Create Ore Excavation, it is displayed as "overstressed". even though I set elector motor to 256RPM. And then I try to connect drill machine with Creative Motor( Set to 30 RPM=about 7000Su). The drill machine can work normally. It seems that the drill machine can work with only 30 RPM. So are there some problems in compatibility between the mod and Create Ore Excavation?

Version:
create-ore-excavation 1.21-1.6.4
create crafts& additions 1.5.1