Re: New Oak Install
Posted: Thu Apr 29, 2021 11:41 pm
Jason,
This is not going to be the silver bullet you are looking for, but it may help. Attached are a Centroid schematic and tech bulletin, which applied to Taiwanese tool-changer machines ca. 1999-2000, using Fuji Frenic 5000 spindle drives.
Unfortunately whoever drew the schematic did not detail CN6 - CN9 at the Fuji drive. They did, however, label the PLC connections on the Koyo modules at the top of the page.
Input module 1 confirms what you already know: CN3-11 is zero speed, CN3-12 is at-speed, CN3-13/14 is a fault indication.
The analog module confirms that CN3-7 and CN3-8 are the analog speed command (frequency reference).
Output module 1 suggests that CN7-3 is the spindle-orient command (when closed to CN7-5 or CN7-6).
Input module 1 further suggests that CN7-2 is the orient completion signal from the Fuji drive to the PLC. Since that module has +24V to CA, it uses current-sourcing inputs, and expects the Fuji drive to close CN7-2 to 0VDC when orientation is complete.
It looks like CN6 is only for the star/delta contactor interface. It does not appear that there are connections from the CNC/PLC to tell the Fuji drive when to switch contactors, so the drive must manage those on its own.
It looks like CN8 is the incoming spindle encoder signal, which you don't need to change.
It looks like CN9 is the spindle encoder output to the CNC, and you have found enough information about that to connect it to the Oak.
I see in your list for CN4 the inputs from a control relay, related to a "rigid tap" command. Most likely that has the effect of reducing accel/decel time, or otherwise making the spindle drive more "servo-like". It wouldn't hurt to wire that to a spare Centroid PLC output, so that it is available if you want or need to experiment with it.
The attached tech bulletin related to the specific PLC programming and control features that Centroid provided 22 years ago. A lot has changed since then. However, there are some pointers in there for configuring the Fuji drive and setting the orient position. Those may apply to the drive you have.
This is not going to be the silver bullet you are looking for, but it may help. Attached are a Centroid schematic and tech bulletin, which applied to Taiwanese tool-changer machines ca. 1999-2000, using Fuji Frenic 5000 spindle drives.
Unfortunately whoever drew the schematic did not detail CN6 - CN9 at the Fuji drive. They did, however, label the PLC connections on the Koyo modules at the top of the page.
Input module 1 confirms what you already know: CN3-11 is zero speed, CN3-12 is at-speed, CN3-13/14 is a fault indication.
The analog module confirms that CN3-7 and CN3-8 are the analog speed command (frequency reference).
Output module 1 suggests that CN7-3 is the spindle-orient command (when closed to CN7-5 or CN7-6).
Input module 1 further suggests that CN7-2 is the orient completion signal from the Fuji drive to the PLC. Since that module has +24V to CA, it uses current-sourcing inputs, and expects the Fuji drive to close CN7-2 to 0VDC when orientation is complete.
It looks like CN6 is only for the star/delta contactor interface. It does not appear that there are connections from the CNC/PLC to tell the Fuji drive when to switch contactors, so the drive must manage those on its own.
It looks like CN8 is the incoming spindle encoder signal, which you don't need to change.
It looks like CN9 is the spindle encoder output to the CNC, and you have found enough information about that to connect it to the Oak.
I see in your list for CN4 the inputs from a control relay, related to a "rigid tap" command. Most likely that has the effect of reducing accel/decel time, or otherwise making the spindle drive more "servo-like". It wouldn't hurt to wire that to a spare Centroid PLC output, so that it is available if you want or need to experiment with it.
The attached tech bulletin related to the specific PLC programming and control features that Centroid provided 22 years ago. A lot has changed since then. However, there are some pointers in there for configuring the Fuji drive and setting the orient position. Those may apply to the drive you have.