Aerotech BM Series, Руководство по оборудованию

Страница: 17 / 59

BM/BMS Series Hardware Manual Introduction
www.aerotech.com 1-5
All measurements should be made with the probe common of each channel of the
oscilloscope connected to a neutral reference test point (TP4, shown in Figure 1-4).
To determine the relative phasing/order of the three motor lead signals in relation to each
other, connect channel 1 of the oscilloscope to TP1. Connect channel 2 to TP2 and move
the motor in the positive direction (CW) by hand. Note the peak of the sine wave signal
of channel 1 in comparison to the peak of the sine wave signal of channel 2. Next,
disconnect channel 2 from TP2 and reconnect it to TP3 and again move the motor in the
positive direction. Note the peak of the sine wave signal of channel 3 in comparison to
the peak of the sine wave signal of channel 1.
Aerotech phasing configuration expects
Ø
C to be the lead signal (in time),
Ø
B to follow
it, and Ø A to follow Ø B. This means that whichever signal has its sine wave peak
farthest to the left should be designated as the Ø C signal.
Figure 1-4: Motor Lead Phasing with Oscilloscope