DynAmp RCEM, Инструкция по установке, эксплуатации и обслуживанию

Страница: 27 / 78

Installation, Operation and Service Manual RCEM
© 2012 DynAmp, LLC Page 13
43756 G
Figure 5.2
Reset Pulse Connector Location
PIN NO.
Reset Pulse
1
1 2 Commo
n
Reset Pulse
2
3 4 Commo
n
Reset Pulse
3
5 6 Commo
n
Reset Pulse
4
7 8 Commo
n
Reset Pulse
5
9 10 Commo
n
Reset Pulse
6
11 12 Commo
n
Zero-
crossing
13 14 Commo
n
Notes:
1) P23: Channels 1 – 10
2) P24: Channels 11 –
20
Figure 5.3
Reset Pulse Signal Location
5.9 TEST SIGNAL GENERATOR
The reset sync card also contains the test signal generator. A second microcontroller is
used to generate the test pattern. This microcontroller also uses the ac zero-crossing
circuit to generate the pattern. The timing signals from the microcontroller is connected to
the signal generator consisting of op amps U11 and U14, analog switch U9, and a
reference voltage produced by U12. The test signal waveform for the 571A test signal is
shown in Figure 5.4.