Machine Control Board
Circuit Theory
CUSA EXcel Ultrasonic Surgical Aspiration System Service Manual 7-5
Suction pump control results from the same kind of operation as irrigation pump
control. The 4 bit output signal range for the suction pump is approximately 0 to
6V DC. The following table shows the suction steps:
Table 7-2.
Suction pump voltage steps
suction step +5v_sp = 6.15v
desired voltage setpoint theoret v
10.40
20.80
31.20
41.61
52.00
62.41
72.81
83.23
93.63
10 4.03
default 4.4 11 4.43
12 4.84
13 5.23
14 5.64
max 6 15 6.03
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