Wiring the analog signal to two or three VFDs in parallel is generally not a problem.
The maximum load on the analog output for most Centroid boards is 10mA.
Typical VFD analog input impedance is 10K or higher, so the draw at 10V would usually be ca. 1mA per VFD.
Search found 3833 matches
- Fri Apr 19, 2024 1:22 am
- Forum: Centroid Acorn CNC Controller
- Topic: Multi Spindle CNC Router control options
- Replies: 18
- Views: 280
- Thu Apr 18, 2024 1:01 am
- Forum: Centroid Acorn CNC Controller
- Topic: VFD control voltage
- Replies: 6
- Views: 99
Re: VFD control voltage
If you disconnect the Acorn's analog signal from the VFD, and give a full-speed command, do you again get +10V? If not, then the Acorn's analog output section has probably been damaged in some way. If you do get +10V when disconnected from the VFD, then something about the VFD analog input is puttin...
- Wed Apr 17, 2024 11:46 am
- Forum: Centroid Acorn CNC Controller
- Topic: VFD control voltage
- Replies: 6
- Views: 99
Re: VFD control voltage
Does your VFD really call the analog input terminal "AO1"?
That is a more common naming pattern for an analog output (e.g. speed or load monitor signal).
That is a more common naming pattern for an analog output (e.g. speed or load monitor signal).
- Wed Apr 17, 2024 11:42 am
- Forum: Centroid Acorn CNC Controller
- Topic: Multi Spindle CNC Router control options
- Replies: 18
- Views: 280
Re: Multi Spindle CNC Router control options
Helical arcs in G17, using W instead of Z, should work just fine.
Arcs in G18 or G19 will not work with the W axis. You would have to get your CAM software to post them as a series of short G1 moves instead.
Arcs in G18 or G19 will not work with the W axis. You would have to get your CAM software to post them as a series of short G1 moves instead.
- Tue Apr 16, 2024 12:31 pm
- Forum: Centroid Oak, Allin1DC, MPU11 and Legacy products
- Topic: Help with tool change macro
- Replies: 5
- Views: 186
Re: Help with tool change macro
You might also want to configure the machine to home using the monitoring switch as a home switch, so that machine zero on the Z axis is just below the carousel. In your tool-change macro you can set the Z+ software travel limit to a non-zero value (e.g. +2.10") to allow movement above machine ...
- Tue Apr 16, 2024 12:28 pm
- Forum: Centroid Oak, Allin1DC, MPU11 and Legacy products
- Topic: Help with tool change macro
- Replies: 5
- Views: 186
Re: Help with tool change macro
In that case you probably want your PLC program to trigger an immediate Fault if the monitoring switch is tripped and the spindle zero-speed signal is not closed.
- Tue Apr 16, 2024 12:25 pm
- Forum: Centroid Acorn CNC Controller
- Topic: Trouble creating Air Blast Macro
- Replies: 14
- Views: 301
Re: Trouble creating Air Blast Macro
You will have to look at what value you have in Machine Parameter 18.
- Tue Apr 16, 2024 1:58 am
- Forum: Centroid Oak, Allin1DC, MPU11 and Legacy products
- Topic: Hardinge CHNC4 Retrofit
- Replies: 166
- Views: 73762
Re: Hardinge CHNC4 Retrofit
Is there a way to see an index pulse? On the PID Configuration screen, and on the F3/Encoder screen below it, you will see an asterisk next to the axis label in the left-most column whenever the index pulse is present for that axis. The index pulse, or lack thereof, will not cause servo instability...
- Tue Apr 16, 2024 1:50 am
- Forum: Centroid Acorn CNC Controller
- Topic: Trouble creating Air Blast Macro
- Replies: 14
- Views: 301
Re: Trouble creating Air Blast Macro
That has nothing to do with the M8.
It was the result of the M3 (spindle start) command on the previous line, combined with your probe detect input.
The control thinks you have a touch probe plugged in, so it would be a bad idea to let the spindle start.
It was the result of the M3 (spindle start) command on the previous line, combined with your probe detect input.
The control thinks you have a touch probe plugged in, so it would be a bad idea to let the spindle start.
- Tue Apr 16, 2024 1:36 am
- Forum: Centroid Oak, Allin1DC, MPU11 and Legacy products
- Topic: Help with tool change macro
- Replies: 5
- Views: 186
Re: Help with tool change macro
M5 generally just means "begin stopping the spindle", i.e. turn off the run-forward and run-reverse commands. A typical M5 does not sit around and wait for the spindle to finish decelerating to a stop. You can, of course, add that. The simplest way is to configure and wire a "zero spe...