Search found 376 matches

by eng199
Tue Jan 23, 2024 10:04 am
Forum: Centroid Oak, Allin1DC, MPU11 and Legacy products
Topic: optic direct
Replies: 5
Views: 475

Re: optic direct

Normally LC4DBRKOUT is used with the Yaskawa header H2. Pinout attached for H2.
by eng199
Wed Nov 29, 2023 3:04 pm
Forum: Centroid Oak, Allin1DC, MPU11 and Legacy products
Topic: Conecting old fanuc dc drive
Replies: 24
Views: 9938

Re: Conecting old fanuc dc drive

Rafael Almanzar wrote: Mon Nov 27, 2023 2:24 pm TB 233 (REV 1) Where it explains the connection of these old drives to the oak control and the 5M and 10M servo motors by means of an OPTIC 4 card
OPTIC4 is from 2009. It is obsolete.
See the beginning of this thread. The systems were not cost effective.
by eng199
Wed Oct 25, 2023 8:53 am
Forum: Centroid Acorn CNC Controller
Topic: Acorn 10V analog output wonky (Resolved, and not what you thought)
Replies: 9
Views: 759

Re: Well nuts, Acorn 10V spindle speed signal loading down

Strange symptom though, driving down the commanded signal so much. The output was probably oscillating. A sine wave would likely display on an oscilloscope. A meter on VDC will just show the average. Once the output is out of control (continuous oscillation) it is hard to say what the DC average wi...
by eng199
Wed Oct 11, 2023 12:40 pm
Forum: Centroid Oak, Allin1DC, MPU11 and Legacy products
Topic: Reading Absolute Encoders
Replies: 1
Views: 3005

Re: Reading Absolute Encoders

OpticDirect (connected to Oak) and HICKORY support absolute encoders.
by eng199
Wed Oct 11, 2023 8:51 am
Forum: Centroid Oak, Allin1DC, MPU11 and Legacy products
Topic: MS connector on DC motor
Replies: 2
Views: 3092

Re: MS connector on DC motor

S15030.r2.pdf
(46.48 KiB) Downloaded 18 times
by eng199
Fri Oct 06, 2023 8:00 am
Forum: Centroid Acorn CNC Controller
Topic: 4 linear scales on router with Acorn6 ?
Replies: 8
Views: 1278

Re: 4 linear scales on router with Acorn6 ?

Multiple screws on the same axis can not be independently compensated.
by eng199
Fri Sep 22, 2023 9:24 am
Forum: Centroid Oak, Allin1DC, MPU11 and Legacy products
Topic: Everything was great until it wasn't <running parts now>
Replies: 26
Views: 27412

Re: Everything was great until it wasn't

The Vm voltage is higher than I would be comfortable with. ALLIN1DC can provide full Vm (100% duty cycle) to the motors if maximum current is requested. A maximum current move occurs in autotune to measure accel time. I suspect the Anilam drive did not provide full power in order to stay within moto...
by eng199
Wed Sep 20, 2023 4:32 pm
Forum: Centroid Oak, Allin1DC, MPU11 and Legacy products
Topic: Everything was great until it wasn't <running parts now>
Replies: 26
Views: 27412

Re: Everything was great until it wasn't

Did the previous control have a transformer? The motors indicate 140V maximum, but you have 165VDC bus. This system should have a step down transformer to get 100-120 DC bus for best longevity. Did you rotate the motor with pins shorted as per http://192.168.0.238/tech_bulletin/uploads/155.pdf ? Thi...
by eng199
Mon Aug 28, 2023 8:02 am
Forum: Centroid Oak, Allin1DC, MPU11 and Legacy products
Topic: What Determines Encoder Signal Voltage?
Replies: 1
Views: 4195

Re: What Determines Encoder Signal Voltage?

It is determined by the current output of the line drivers. Usually the line driver IC is some variation of 26LS31 (quad package). The receiving side has a termination resistor that will lower the voltage versus open circuit voltage. The line driver needs sufficient output current to still have the ...
by eng199
Fri Aug 25, 2023 2:38 pm
Forum: Centroid Acorn CNC Controller
Topic: Is my Acorn dead?
Replies: 3
Views: 548

Re: Is my Acorn dead?

The PC ground has to be at the same potential as the ACORN ground. The Ethernet cable shield connects them. If the incident tried to push ACORN potential away from PC GND, there is a ferrite bead on the BeagleBone that may fail. Problem could be something else. It was what came to mind that is close...