| ??? 06/22/06 13:40 Read: times |
#118847 - ramp and osc Responding to: ???'s previous message |
J Cena said:
No, I am starting at lower speed and ramping up then, here is what I am doing for speed, Start with 10 steps per second increase to 50 steps per second (by external input) increase to 200 steps per second (by external input) increase to 400 steps per seconds (by external input) and finally trying to achieve 800 steps per seconds (at this stage the motor stops and makes low noise) The motor is stalling, this may be too much of an increase at once. Try adding say 50 steps/sec on each increase. What signal I should expect on pin 16 (OSC) of L297?? There should be a a sawtooth pattern of whatever chopping frequency you've decided to use. I would use around 20kHz, a 10k resistor and 5nF cap. Jon |
| Topic | Author | Date |
| alternative of L297 + L298 ?? | 01/01/70 00:00 | |
| datasheet | 01/01/70 00:00 | |
| motor drivers = Allegro | 01/01/70 00:00 | |
| You need to name your homepage | 01/01/70 00:00 | |
| homepage + 800 rpm | 01/01/70 00:00 | |
| Homepage | 01/01/70 00:00 | |
| Also, server is case sensitive | 01/01/70 00:00 | |
| 800RPM | 01/01/70 00:00 | |
| More details | 01/01/70 00:00 | |
| 1000 rpm | 01/01/70 00:00 | |
| Is this the right datasheet? | 01/01/70 00:00 | |
| re:check this out | 01/01/70 00:00 | |
| Trinamic | 01/01/70 00:00 | |
| IMS Drive | 01/01/70 00:00 | |
| THANKS | 01/01/70 00:00 | |
| Check this out | 01/01/70 00:00 | |
| LM18200 | 01/01/70 00:00 | |
| Just did 893 RPM with my new setup | 01/01/70 00:00 | |
| progress so far | 01/01/70 00:00 | |
| 10 ohm resistor | 01/01/70 00:00 | |
| re: 10 Ohm resistor | 01/01/70 00:00 | |
| Vsense resistor | 01/01/70 00:00 | |
| Or.... | 01/01/70 00:00 | |
| Ramping | 01/01/70 00:00 | |
| re:ramping | 01/01/70 00:00 | |
| ramp and osc | 01/01/70 00:00 | |
| re: ramp and osc | 01/01/70 00:00 | |
| resistors heating | 01/01/70 00:00 | |
| Ramping up the motor speed | 01/01/70 00:00 | |
Series Resistors | 01/01/70 00:00 |