Beta 4th axis on Robodrill Alpha

[barbter]

Hi All,
We just bought a robodrill (alha drives and motors).
We have 3 rotary tables which are all Beta motors.
Is there a 'adaptor box' available which will allow us to run our existing units?
Thanks

[f-bu]

hi barbter,
Beta motors are compatible with alpha drives, just initialise them with correct motor number - use HRV2 number, >200. If your Robodrill has only 3 axes, you have 2 possibilities - install additional alpha or beta drive, or change the last single axis drive with double one.

[barbter]

f-bu,
Thank you for the reply.
The machine has 3x drives only, so we will probably install an additional alpha drive for the rotary table which keeps all the drives the same.
But, how do you initialise this new drive to work with the beta table? Sorry but I don't understand.

Lastly, would this drive be ok?
http://cgi.ebay.co.uk/ws/eBayISAPI.d...Category=42899

Thank you.

[f-bu]

barbter,
from the end - yes, it is ok for motors up to beta 22/2000is.
1. install the drive. you will need short optical cable, ESP/24V jump cable, 2x60mm hi voltage bridges,XX type connector for motor power and small type honda connector for the feedback.
2. set axis count to 4 at 1010, power off/on
3. set FSSB parameters 1913:=1912+1, 1923:=1922+1, 1023.A:=1023.Z+1 4. system button-right arrow-SV-PRM soft key.
On that page: set axis type to rotary, reload prm at startup, motor type (beta8/3000=258, beta12/3000=272, beta22/2000=274), increment 0.001 or 0.0001, gear ratio depend on table, for example 1/90, no separate connector.
After power off/on, take the sheet with parameters from the rotary table and add necessary - feed rates etc.
Good luck

[barbter]

f-bu,
Thanks again for the reply.
Our rotary table motors are all Beta 4/4000iS models (motor spec A06B-0063-B003).
Do I assume that this drive will work ok?
If not, what drive do we need?
Many thanks again

[f-bu]

Originally Posted by barbter f-bu, Thanks again for the reply. Our rotary table motors are all Beta 4/4000iS models (motor spec A06B-0063-B003). Do I assume that this drive will work ok? If not, what drive do we need? Many thanks again

For Beta 4/4000iS on 40A AlphaiSV40 drive use model number 257, not 256, which is for 20A servo. In fact, 40A servo is big for this motor, 20A is enough, but can be used without problems.
Best regards

[shibi]

Originally Posted by f-bu barbter, from the end - yes, it is ok for motors up to beta 22/2000is. 1. install the drive. you will need short optical cable, ESP/24V jump cable, 2x60mm hi voltage bridges,XX type connector for motor power and small type honda connector for the feedback. 2. set axis count to 4 at 1010, power off/on 3. set FSSB parameters 1913:=1912+1, 1923:=1922+1, 1023.A:=1023.Z+1 4. system button-right arrow-SV-PRM soft key. On that page: set axis type to rotary, reload prm at startup, motor type (beta8/3000=258, beta12/3000=272, beta22/2000=274), increment 0.001 or 0.0001, gear ratio depend on table, for example 1/90, no separate connector. After power off/on, take the sheet with parameters from the rotary table and add necessary - feed rates etc. Good luck

Great information, but....

Don't we need to change #9900 to 4 too?

-A

[f-bu]

9900 is necessary, sorry.
In fact, because of big number of variants, maybe the most painless path is to start the procedure exactly as in the manual, with the motor number close to your actual one, and after fssb alarms disappear, change the motor number to the actual. Depend on the control, year, version etc. it may be necessary to obtain a free parameter upgrade from Fanuc dealer for add. axis. Last machines with FS31i and new option activation need it. Also, new machines can drive additional servo on the fssb after Z axis, older ones with fssb I/O expect add. axis on fssb2. Well, it is hard to explain enough in 10 lines abstractly, without particular machine in mind.