BY12512d_e.doc / Mai-08
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Enable both, Master and Slave drive and run the Master forward at slow speed
(e.g. 10-20% of max. speed). The Slave will follow the Master.
•
Set the DIFFERENTIAL COUNTER to zero and the Color bar graph to the green centre by
switching Reset to ON.
•
Watch the color bar while you switch Reset OFF. It will deviate to right or left while the
DIFFERENTIAL COUNTER counts to positive or negative. Please note, with very wrong
initial setting we can swap over from any side to the opposite side after some time.
Then please observe only to where we deviate immediately after releasing RESET.
•
When we deviate to right (positive), our Gain Total setting is too low and must be
increased.
•
When we deviate to left (negative), our Gain Total setting is too high and must be
reduced.
•
Find the Gain Total setting that keeps the DIFFERENTIAL COUNTER around zero and the
color bar around the green centre zone.
•
For rough adjusting, use the slide button in the Gain Total field.
For fine tuning, use the
keys.
•
When Gain Total is set to keep the bar around zero, we adjust Gain Correction now.
The general rule is to increase the setting to values as high as possible, but still ensure
stable operation. Typical settings are between 300 and 2000. Depending on drive,
inertia and gearing you can get stability problems when Gain-Correction is too high
(rough or noisy motion of the drive and visible oscillation of the bar graph and the
differential counter). If so, reduce Gain Correction until we are stable again. When you
have observed stability problems, you should also try to suddenly stop and restart the
master and ensure the slave does not tend to oscillate after this action also.
•
To change the Gain Correction settings use again the slide button and the
keys
like with Gain-Total.
•
Change the speed between standstill and maximum speed, observe the differential
counter and the color bar and optimize the Gain settings if necessary. Exit the ADJUST
MENU when you feel your settings are o.k. This will automatically store your settings to
the EEPROM of the BY125 synchronizer.
This concludes the general set-up procedure which needs to be done with every application. At
this time your drives operate in a closed loop digital synchronization and the next section will
show you some hints how you could still improve performance with some applications.
