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Rockwell Automation Publication 20P-TG001C-EN-P - February 2018
23
Component Test Procedures
Chapter 2
,
are examples of gate pulse,
current, and voltage signal measurements taken on an SCR. In these
figures:
– 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
5V
0V
XY19
XY19
XY17