MINISAX II DRIVER DOWNLOAD
January 25, 2020 | by admin
Turn the velocity, error, position, integrator, and fine gain pots fully CCW. When buying a complete analog optical scanner scanner, driver, and mirror the driver should arrive with a factory tune. The various settings are shown in Table 4. CommandThe small-signal, accuracy-optimized tune will typically Underdampedgive a critically damped response for steps up to 10mR and Critically Dampedeither an overdamped or underdamped response for larger Overdampedsteps, depending upon their size. The connector pin functions are shown in Table 1. High bandwidth is achieved when the servo driver is adjusted to a small step of approximately 0. Large Signal and Small Signal Commands
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If not familiar with this equipment, you shouldcontact your sales representative to order a factory custom tuning.
MiniSAX II Driver User’s Manual Pages 1 – 33 – Text Version | FlipHTML5
The scanner motor should begin Positionto follow the command signal. On controllers without the thermal regulator option, this connector is located mihisax the baseboard. Using an oscilloscope, monitor the position signal on channel 1 and error on channel 2 use DC coupling. Check the connections between the scanner motor and driver. When buying a complete analog optical scanner scanner, driver, and mirror the driver should arrive with a miinsax tune.
Input a waveform that represents the largest step or greatest acceleration the galvo will be commanded to.
MiniSAX II Driver User’s Manual
Before calling for assistance, be sure to refer to any appropriate sections in the manual that may answer your questions. Adjusting the gain and offset also sets the over-position shutdown angle.
Re-adjustment of the error-proportional and velocity may be necessary.
If the scanner motor begins to oscillate at high Commandfrequencies, reduce the velocity gain until it stops. Mating connectors and inexpensive assembly tools are also available. For more information on tuning performance, see section 8.
The overdamped tuning is gentler tothe scanner motor and tends to excite less high frequency resonances, allowing the tight settling to beachieved more readily. Scanner motor or driver ui hot when operating. The customer service personnel will be able to give you direct assistance and answers to your questions. The factory installed fuse is Littelfuse part number R If these signals are to be used in your laser system, ui strongly recommend that they be buffered as close as possible to the MiniSAX II and that care be taken not to introduce electrical noise into these lines.
On power up, scanner motor rotor pins to one side with no command signal.
Minisax Bag 2
Error Gain The error gain term provides a current to the scanner motor proportional toPosition-Proportional the difference between the commanded and actual position. View in Fullscreen Report. See Figure 7 The velocity Timechosen should be the maximum velocity expected in theapplication. When the LED is li, no power isbeing applied. In most cases, oscillation will occur at the resonant frequency if a notch filter is not used.
In Anglethese cases a typical optimization waveform is a constantvelocity command broken by a series of stop and startpoints over the full field. For high RMS power applications, review the heatsinking scheme.
Changing the load inertia will most likely change the tuning performance and can cause oscillation or instability. Increase the velocity gain CW a few turns.
CommandThe small-signal, accuracy-optimized tune minisac typically Underdampedgive a critically damped response for steps up to 10mR and Critically Dampedeither an overdamped or underdamped response for larger Overdampedsteps, depending upon their size. Typicallythe smoothness of settling can be improved by increasing the velocity gain. The error minjsax is the most convenient to view while adjusting the servo for minimum step time. This is an open drain output, capable of sinking 50mA at a maximum of 25V.
Adjust the offset so that the scan is symmetrical about the mechanical center, found in step 8.
A grounded wrist strap with the appropriate 1 Meg series resistor connected to the tabletop mat and ground. This procedure describes tuning the servo driver for the fastest step response. If oscillation or instability occurs, turn the power off immediately and adjust the velocity, error, position and integrator pots CCW a few more turns to be sure they are adjusted to the minimum gain. The factory installed fuse F2 on the baseboard is a Littelfuse part number R