| ??? 02/24/05 15:50 Read: times |
#88354 - not at all Responding to: ???'s previous message |
Erik: Whose design will work when the stepper motor burn out and is replaced with another brand?
Thomas: My feeling was that the stepper being wrongly corrected would end up in a blown L298 ( already did that once , by reversing the diodes ). How/who would the opto isolation protect ? not at all No opto-isolation will protect against improper installation. However, as the coils on the new stepper motor are most likely different a different EMI pattern could happen, and THERE the value of opto-isolation might show itself by preventing burps caused by noise. I have seen a unit that had worked for years burping constantly when a relay was replaced with an "identical" replacement. Erik |
| Topic | Author | Date |
| Input to L297 with a micro pin | 01/01/70 00:00 | |
| belt and braces | 01/01/70 00:00 | |
| re | 01/01/70 00:00 | |
| design vs test | 01/01/70 00:00 | |
| continuing >>> | 01/01/70 00:00 | |
| not at all | 01/01/70 00:00 | |
| continuing | 01/01/70 00:00 | |
| burn one - burn two | 01/01/70 00:00 | |
| L297 | 01/01/70 00:00 | |
| L297 | 01/01/70 00:00 | |
| depends | 01/01/70 00:00 | |
Enable high | 01/01/70 00:00 |