Axis 670 Manuale delle Istruzioni Scaricare il pdf (Pagina 43)

The scanner should now be responding to the input waveform, but should look very

underdamped. Continue to turn R28 CW until the oscillations just die out before the next half

cycle ofthe input signal. See figure 19.

8. Turn R25 CW to minimize the first overshoot and to minimize the oscillations. See figure 20.

HfD 20omV

(inz 200mV ^M 5msfext/io/ 1.58V 'HB '2fl6mV

Chi mmV KfA 5msExt/ld/ 1.58V

Figure 19.

Figure 20.

9. Tum R59 CW until the undershoot is minimized, i.e. at the same amplitude as the settled

position. See Figure 21.

10.

Tum R25 CW until the first overshoot is minimized, i.e. at the same amplitude as the settled

position. See Figure 22.

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Axis 670 Manuale delle Istruzioni Pagina 43