RE: [CAD_CAM_EDM_DRO] Re: Servo drives- Mariss
Posted by
Leslie Watts
on 2005-05-12 09:52:21 UTC
I have been watching this thread a bit and I see no mention of inertia...
so I will bring it up briefly.
Reflected inertia from the load of a geared drive is the SQUARE of the
motor gear ratio.
If you use a big ratio like 10:1 to get the most power out of a servo it's
inertia will be 100 times larger looking from the load!
Another way of saying this is that motors running at high rpm will take a
lot
of time to change speed. They are pretty good flywheels.
Because of this and other reasons servos are often run at low rpm and low
power density
to achieve the desired machine acceleration in the most economical fashion.
Les
Leslie M.Watts
L M Watts Furniture
Tiger Georgia
(706) 212-0242
Main page:
http://www.lmwatts.com
Engineering:
http://www.lmwatts.com/shop.html
Cnc surplus for sale:
http://www.lmwatts.com/forsale.html
Carved signs:
http://www.lmwatts.com/signwp.html
so I will bring it up briefly.
Reflected inertia from the load of a geared drive is the SQUARE of the
motor gear ratio.
If you use a big ratio like 10:1 to get the most power out of a servo it's
inertia will be 100 times larger looking from the load!
Another way of saying this is that motors running at high rpm will take a
lot
of time to change speed. They are pretty good flywheels.
Because of this and other reasons servos are often run at low rpm and low
power density
to achieve the desired machine acceleration in the most economical fashion.
Les
Leslie M.Watts
L M Watts Furniture
Tiger Georgia
(706) 212-0242
Main page:
http://www.lmwatts.com
Engineering:
http://www.lmwatts.com/shop.html
Cnc surplus for sale:
http://www.lmwatts.com/forsale.html
Carved signs:
http://www.lmwatts.com/signwp.html
Discussion Thread
Pete Brown (YahooGroups)
2005-05-06 06:22:54 UTC
What makes a motor a servo?
turbulatordude
2005-05-06 07:23:06 UTC
Re: What makes a motor a servo?
Jon Elson
2005-05-06 08:19:45 UTC
Re: [CAD_CAM_EDM_DRO] What makes a motor a servo?
Pete Brown (YahooGroups)
2005-05-06 09:29:24 UTC
RE: [CAD_CAM_EDM_DRO] What makes a motor a servo?
Alex Holden
2005-05-06 10:32:26 UTC
Re: [CAD_CAM_EDM_DRO] What makes a motor a servo?
Les Newell
2005-05-06 11:27:14 UTC
Re: [CAD_CAM_EDM_DRO] Re: What makes a motor a servo?
Pete Brown (YahooGroups)
2005-05-06 12:30:42 UTC
RE: [CAD_CAM_EDM_DRO] What makes a motor a servo?
cnc_4_me
2005-05-06 12:33:28 UTC
Re: What makes a motor a servo?
Alex Holden
2005-05-06 12:48:41 UTC
Re: [CAD_CAM_EDM_DRO] What makes a motor a servo?
cnc002@a...
2005-05-06 13:25:14 UTC
Re: [CAD_CAM_EDM_DRO] What makes a motor a servo?
Codesuidae
2005-05-06 13:38:31 UTC
Re: [CAD_CAM_EDM_DRO] What makes a motor a servo?
Jon Elson
2005-05-06 18:56:30 UTC
Re: [CAD_CAM_EDM_DRO] What makes a motor a servo?
turbulatordude
2005-05-06 21:25:53 UTC
Re: What makes a motor a servo? treadmill
cnc_4_me
2005-05-06 21:39:03 UTC
Re: What makes a motor a servo?
cnc_4_me
2005-05-06 21:54:02 UTC
Re: What makes a motor a servo? treadmill
turbulatordude
2005-05-06 22:28:08 UTC
Re: What makes a motor a servo? 80% of rated speed ?
cnc_4_me
2005-05-06 22:34:45 UTC
Re: What makes a motor a servo? 80% of rated speed ?
vrsculptor
2005-05-07 09:34:49 UTC
Re: What makes a motor a servo? treadmill 1.5 volt
turbulatordude
2005-05-07 10:02:18 UTC
Re: What makes a motor a servo? treadmill 1.5 volt
Mariss Freimanis
2005-05-07 12:00:35 UTC
Re: What makes a motor a servo?
Jon Elson
2005-05-07 12:56:21 UTC
Re: [CAD_CAM_EDM_DRO] Re: What makes a motor a servo? treadmill
Jon Elson
2005-05-07 13:08:50 UTC
Re: [CAD_CAM_EDM_DRO] Re: What makes a motor a servo? 80% of rated speed ?
Jon Elson
2005-05-07 13:28:52 UTC
Re: [CAD_CAM_EDM_DRO] Re: What makes a motor a servo?
Jon Elson
2005-05-07 13:40:11 UTC
Re: [CAD_CAM_EDM_DRO] Re: What makes a motor a servo?
Mariss Freimanis
2005-05-07 14:46:53 UTC
Re: What makes a motor a servo?
Polaraligned
2005-05-07 15:07:09 UTC
Re: What makes a motor a servo?
Mariss Freimanis
2005-05-07 15:44:04 UTC
Re: What makes a motor a servo?
Ron Kline
2005-05-07 16:45:05 UTC
Re: [CAD_CAM_EDM_DRO] Re: What makes a motor a servo?
R Rogers
2005-05-07 18:00:17 UTC
Re: [CAD_CAM_EDM_DRO] Re: What makes a motor a servo?
cnc_4_me
2005-05-07 18:04:15 UTC
Re: What makes a motor a servo?
cnc_4_me
2005-05-07 18:16:56 UTC
Re: What makes a motor a servo?
Polaraligned
2005-05-07 18:37:20 UTC
Re: What makes a motor a servo?
Polaraligned
2005-05-07 18:44:10 UTC
Re: What makes a motor a servo?
JanRwl@A...
2005-05-07 19:38:02 UTC
Re: [CAD_CAM_EDM_DRO] Re: What makes a motor a servo?
cnc_4_me
2005-05-07 19:47:49 UTC
Re: What makes a motor a servo?
Mariss Freimanis
2005-05-07 20:12:18 UTC
Re: What makes a motor a servo?
JanRwl@A...
2005-05-07 20:23:13 UTC
Re: [CAD_CAM_EDM_DRO] Re: What makes a motor a servo?
Jon Elson
2005-05-07 21:29:37 UTC
Re: [CAD_CAM_EDM_DRO] Re: What makes a motor a servo?
Jon Elson
2005-05-07 21:36:40 UTC
Re: [CAD_CAM_EDM_DRO] Re: What makes a motor a servo?
Mariss Freimanis
2005-05-07 22:06:51 UTC
Re: What makes a motor a servo?
David Bloomfield
2005-05-08 05:46:29 UTC
Re: What makes a motor a servo?
turbulatordude
2005-05-08 05:57:41 UTC
Re: What makes a motor a servo?
Ed Fanta
2005-05-08 06:29:20 UTC
Re: [CAD_CAM_EDM_DRO] Re: What makes a motor a servo?
lcdpublishing
2005-05-08 09:27:46 UTC
Re: What makes a motor a servo?
Polaraligned
2005-05-08 10:08:45 UTC
Re: What makes a motor a servo?
Polaraligned
2005-05-08 10:17:29 UTC
Re: What makes a motor a servo?
Jon Elson
2005-05-08 11:17:44 UTC
Re: [CAD_CAM_EDM_DRO] Re: What makes a motor a servo?
cnc_4_me
2005-05-08 11:35:12 UTC
Re: What makes a motor a servo?
lcdpublishing
2005-05-08 11:54:09 UTC
Re: What makes a motor a servo?
cnc_4_me
2005-05-08 12:12:49 UTC
Re: What makes a motor a servo?
Polaraligned
2005-05-08 12:20:54 UTC
Re: What makes a motor a servo?
Polaraligned
2005-05-08 12:34:55 UTC
Re: What makes a motor a servo?
Polaraligned
2005-05-08 12:41:01 UTC
Re: What makes a motor a servo?
Mariss Freimanis
2005-05-08 12:42:04 UTC
Re: What makes a motor a servo?
turbulatordude
2005-05-08 15:35:11 UTC
Re: What makes a motor a servo? - real world applications
bobmcknight@c...
2005-05-09 23:37:05 UTC
Re: [CAD_CAM_EDM_DRO] Re: What makes a motor a servo?
turbulatordude
2005-05-10 07:18:49 UTC
Re: What makes a motor a servo? calculating power
turbulatordude
2005-05-10 07:29:46 UTC
Re: What makes a motor a servo?
Polaraligned
2005-05-10 11:40:29 UTC
Re: What makes a motor a servo?
Polaraligned
2005-05-10 13:23:51 UTC
Re: What makes a motor a servo?
John Meissner
2005-05-10 14:21:37 UTC
Re: What makes a motor a servo?
John Meissner
2005-05-10 15:20:32 UTC
Re: What makes a motor a servo?
Polaraligned
2005-05-10 17:55:10 UTC
Re: What makes a motor a servo? calculating power
Erie Patsellis
2005-05-10 19:17:15 UTC
Re: [CAD_CAM_EDM_DRO] Re: What makes a motor a servo? calculating power
R Rogers
2005-05-10 20:23:24 UTC
Re: [CAD_CAM_EDM_DRO] Re: What makes a motor a servo? calculating power
turbulatordude
2005-05-10 20:25:11 UTC
Re: What makes a motor a servo? calculating power
Mariss Freimanis
2005-05-10 21:11:37 UTC
Re: What makes a motor a servo? calculating power
Mariss Freimanis
2005-05-10 21:22:03 UTC
Re: What makes a motor a servo? calculating power
Erie Patsellis
2005-05-10 21:27:29 UTC
Re: [CAD_CAM_EDM_DRO] Re: What makes a motor a servo? calculating power
turbulatordude
2005-05-10 23:44:45 UTC
Re: What makes a motor a servo? calculating power
Alex Holden
2005-05-11 01:00:09 UTC
Re: [CAD_CAM_EDM_DRO] Re: What makes a motor a servo? calculating power
Les Newell
2005-05-11 02:40:25 UTC
Re: [CAD_CAM_EDM_DRO] Re: What makes a motor a servo? calculating power
lcdpublishing
2005-05-11 04:44:17 UTC
Re: What makes a motor a servo? calculating power
Les Newell
2005-05-11 05:52:52 UTC
Re: [CAD_CAM_EDM_DRO] Re: What makes a motor a servo? calculating power
turbulatordude
2005-05-11 07:02:58 UTC
Re: What makes a motor a servo? gearing servos
Alex Holden
2005-05-11 07:20:53 UTC
Re: [CAD_CAM_EDM_DRO] Re: What makes a motor a servo? gearing servos
turbulatordude
2005-05-11 08:09:09 UTC
Re: What makes a motor a servo? gearing servos
Alan Marconett
2005-05-11 08:27:18 UTC
RE: [CAD_CAM_EDM_DRO] Re: What makes a motor a servo? calculating power
lcdpublishing
2005-05-11 08:53:35 UTC
Re: What makes a motor a servo? calculating power
Mariss Freimanis
2005-05-11 10:01:27 UTC
Re: What makes a motor a servo? calculating power
bobmcknight@c...
2005-05-11 10:45:16 UTC
Re: [CAD_CAM_EDM_DRO] Re: What makes a motor a servo? calculating power
Codesuidae
2005-05-11 10:53:27 UTC
Re: [CAD_CAM_EDM_DRO] Re: What makes a motor a servo? calculating power
Mariss Freimanis
2005-05-11 11:06:53 UTC
Re: What makes a motor a servo? calculating power
Alan Marconett
2005-05-11 11:49:12 UTC
RE: [CAD_CAM_EDM_DRO] Re: What makes a motor a servo? calculating power
Alan Marconett
2005-05-11 11:57:39 UTC
RE: [CAD_CAM_EDM_DRO] Re: What makes a motor a servo? calculating power
Mariss Freimanis
2005-05-11 11:59:45 UTC
Re: What makes a motor a servo? calculating power
Mariss Freimanis
2005-05-11 12:10:00 UTC
Re: What makes a motor a servo? calculating power
Codesuidae
2005-05-11 12:29:35 UTC
Re: [CAD_CAM_EDM_DRO] Re: What makes a motor a servo? calculating power
Hugh Prescott
2005-05-11 12:59:24 UTC
Re: [CAD_CAM_EDM_DRO] Re: What makes a motor a servo? calculating power
bobmcknight@c...
2005-05-11 13:08:51 UTC
RE: [CAD_CAM_EDM_DRO] Re: What makes a motor a servo? calculating power
bobmcknight@c...
2005-05-11 13:09:16 UTC
RE: [CAD_CAM_EDM_DRO] Re: What makes a motor a servo? calculating power
Luke1027
2005-05-11 14:00:18 UTC
Re: [CAD_CAM_EDM_DRO] Re: What makes a motor a servo? calculating power
turbulatordude
2005-05-11 15:05:43 UTC
Re: What makes a motor a servo? calculating power
Alan Marconett
2005-05-11 16:15:59 UTC
RE: [CAD_CAM_EDM_DRO] Re: What makes a motor a servo? calculating power
Jon Elson
2005-05-11 19:26:23 UTC
Re: [CAD_CAM_EDM_DRO] Re: What makes a motor a servo? calculating power
David Bloomfield
2005-05-11 20:21:19 UTC
Re: What makes a motor a servo? calculating power
Polaraligned
2005-05-12 03:05:43 UTC
Servo drives- Mariss
turbulatordude
2005-05-12 07:54:41 UTC
Re: Servo drives- Mariss
Adrian Kole
2005-05-12 08:13:30 UTC
Re: Servo drives- Mariss
Codesuidae
2005-05-12 08:16:40 UTC
Re: [CAD_CAM_EDM_DRO] Re: Servo drives- Mariss
Mariss Freimanis
2005-05-12 08:30:36 UTC
Re: Servo drives- Mariss
R Rogers
2005-05-12 08:32:51 UTC
Re: [CAD_CAM_EDM_DRO] Re: Servo drives- Mariss
Alan Marconett
2005-05-12 08:37:39 UTC
RE: [CAD_CAM_EDM_DRO] Re: Servo drives- Mariss
JCullins
2005-05-12 08:50:37 UTC
Re: [CAD_CAM_EDM_DRO] Re: Servo drives- Mariss
Jon Elson
2005-05-12 09:28:41 UTC
Re: [CAD_CAM_EDM_DRO] Re: Servo drives- Mariss
Leslie Watts
2005-05-12 09:52:21 UTC
RE: [CAD_CAM_EDM_DRO] Re: Servo drives- Mariss
Mariss Freimanis
2005-05-12 10:00:50 UTC
Re: Servo drives- Mariss
Mariss Freimanis
2005-05-12 10:22:31 UTC
Re: Servo drives- Mariss
Codesuidae
2005-05-12 10:33:12 UTC
Re: [CAD_CAM_EDM_DRO] Re: Servo drives- Mariss
Les Newell
2005-05-12 11:16:59 UTC
Re: [CAD_CAM_EDM_DRO] Re: Servo drives- Mariss
turbulatordude
2005-05-12 12:01:55 UTC
Re: Servo drives- Mariss
Mariss Freimanis
2005-05-12 12:14:08 UTC
Re: Servo drives- Mariss
Leslie Watts
2005-05-12 13:08:30 UTC
RE: [CAD_CAM_EDM_DRO] Re: Servo drives- Mariss
cnc_4_me
2005-05-12 13:10:08 UTC
Re: Servo drives- Mariss
David A. Frantz
2005-05-12 15:04:01 UTC
Re: [CAD_CAM_EDM_DRO] Re: Servo drives- Mariss
JCullins
2005-05-12 15:08:43 UTC
Re: [CAD_CAM_EDM_DRO] Re: Servo drives- Mariss
Mariss Freimanis
2005-05-12 16:18:53 UTC
Re: Servo drives- Mariss
JCullins
2005-05-12 16:41:44 UTC
Re: [CAD_CAM_EDM_DRO] Re: Servo drives- Mariss
turbulatordude
2005-05-12 19:35:25 UTC
Re: Servo drives- exploding head
Erie Patsellis
2005-05-12 20:11:51 UTC
Re: [CAD_CAM_EDM_DRO] Re: Servo drives- exploding head
cnc_4_me
2005-05-12 20:28:03 UTC
Re: Servo drives- exploding head
Polaraligned
2005-05-13 03:10:01 UTC
Re: Servo drives- Mariss
Polaraligned
2005-05-13 03:14:48 UTC
Re: Servo drives- Mariss
turbulatordude
2005-05-13 08:00:30 UTC
Re: Servo drives- Mariss
Leslie Watts
2005-05-13 08:15:28 UTC
RE: [CAD_CAM_EDM_DRO] Re: Servo drives- exploding head
cnc_4_me
2005-05-13 08:27:58 UTC
Re: Servo drives- exploding head
m0nkey0ne
2005-05-13 08:53:54 UTC
Re: Servo drives- exploding head prevention
Dave Shiels
2005-05-13 14:55:00 UTC
Re: [CAD_CAM_EDM_DRO] Re: Servo drives- exploding head
turbulatordude
2005-05-14 08:26:04 UTC
Re: Servo drives- exploding head
caudlet
2005-05-14 09:01:51 UTC
Re: Servo drives- exploding head
Leslie Watts
2005-05-14 10:21:56 UTC
RE: [CAD_CAM_EDM_DRO] Re: Servo drives- exploding head
turbulatordude
2005-05-14 10:53:16 UTC
Re: Servo drives- exploding head
turbulatordude
2005-05-14 12:42:47 UTC
Re: Servo drives- exploding head - Router/plasma
Erie Patsellis
2005-05-14 15:45:44 UTC
Re: [CAD_CAM_EDM_DRO] Re: Servo drives- exploding head - Router/plasma
turbulatordude
2005-05-14 18:37:57 UTC
Re: Servo drives- exploding head - Router/plasma
Dave Fisher
2005-05-23 16:05:06 UTC
RE: [CAD_CAM_EDM_DRO] Re:NEMA 23 Stepper Motors