Has anyone used the Leadshine digital stepper drivers? Do they really provide "smoother operation with less heat"?
I need to buy a stepper motor controller and notice that Leadshine offers three series of drivers. The most common cheap driver for a 4 amp motor is the M542. But there is also the EM503 and DM556. They offer a EM, DM and M series of drivers. The DM and EM series have a digital DSP controller and they claim a mode where the driver tests the connected motor for both DC resistance and inductance and then adjusts the current/speed parameters to suit. The motor shaft vibrates while the test is underway (likely the controller is placing a small AC signal in the motor to measure inductance) The DM and EM series can also reduce the current going to the motor after it has been at zero speed for one second, to reduce heating. The DM and EM series have an RS-232 port so the parameters (resistance, inductance and idle current reduction) can be set from software rather then auto-tuned. In addition the EM series driver can detect skipped steps without an additional sensor and raise a fault line that (I assume) EMC/MachineKit can detect. -- Chris Albertson Redondo Beach, California ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
