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Rockwell Automation Publication 20P-TG003B-EN-P - September 2021
Chapter 2
Component Test Procedures
below are examples representing gate
pulse, current and voltage signal measurements taken on an SCR. In the
figures below:
–
The current signal is taken on the testpoint XY17 (+2.5V offset;
+0.6V=Drive size current).
–
The voltage signal is taken on the testpoint XY19 (+2.5V offset).
–
The ground signal is taken on either testpoint XY10 or XY18.
Figure 3 - Good SCR Gate Pulse and Armature Current Signals Example
Figure 4 - Good SCR Armature Voltage and Motor Current Signal Example
5 V
0 V
XY19
XY19
XY17