Servo Motor Rated Speeds, Max Speed & Gearing

[pippin88]

Delta do have torque graphs. They have a good manual which is partly why they are worth paying for.

You will get 100% torque to rated speed then it will drop off to max speed.

You then have continuous vs intermittent duty zone.

The servo will be happy all day in the continuous zone. The time in the intermittent zone depends on how much over the continuous zone you are. E.g. 110% will be ages where as 300% willintermittent
This info is also in the manual but slightly harder to find.

[BigBrand]

Good to know they have manuals thank you.. i've searched on their web and not found anything as yet but ill take another look

Rated speed for cutting and then max speed for rapids made more sense in my head after i thought about it. However, i wonder if i should just keep it simple at 2krpm gear it down to a sensible speed (still more than i could ever really need) while giving me more torque than ill probably ever need and just be done with it.

[pippin88]

Good to know they have manuals thank you.. i've searched on their web and not found anything as yet but ill take another look

Rated speed for cutting and then max speed for rapids made more sense in my head after i thought about it. However, i wonder if i should just keep it simple at 2krpm gear it down to a sensible speed (still more than i could ever really need) while giving me more torque than ill probably ever need and just be done with it.

Can be a little hard to find on their website. I found easier to Google:
Delta B3 servo manual
Delta A3 servo manual
Delta B2 servo manual

[JAZZCNC]

Good to know they have manuals thank you.. i've searched on their web and not found anything as yet but ill take another look

Rated speed for cutting and then max speed for rapids made more sense in my head after i thought about it. However, i wonder if i should just keep it simple at 2krpm gear it down to a sensible speed (still more than i could ever really need) while giving me more torque than ill probably ever need and just be done with it.

Thinking in speed terms is the wrong approach because after your rolling it takes very little power to keep it rolling, slowing down, and changing direction is completely different and this is where rotor inertia, Mass, torque, etc come into play.
The fact you can travel at 50mtr.min might seem great until you come to stoping the bloody thing and it overshoots because the inertia of the moving mass and rotor together run out of brakes.
Likewise hitting the throttle hard is the same thing in reverse, so high rotor inertia, heavy mass requires lots of power to get things moving, after which hardly any is needed to keep it moving, then the cycle starts again to slow down/change direction.

It's these things, among others, which can make tuning the motors difficult, achieving high feeds is easy but not always a good thing.