
28
Rockwell Automation Publication 20P-TG002B-EN-P - February 2018
Chapter 2
Component Test Procedures
Table 3 - SCR Anode to Cathode Junction Measurements for Non-Regenerative Drives
Figure 7 - Non-Regenerative Drive SCR Module Layout
5. Check the gate to cathode junction of each SCR. With a digital
multimeter set to Ohms, measure the resistance of each SCR junction.
• For regenerative drives, see
Table 4
on page
29
and
Figure 8
on page
29
.
• For non-regenerative drives, see
Table 5
on page
30
and
Figure 9
on
page
30
.
On SCR Module
SCR
Measure from
Terminal
To Terminal
Nominal Meter Reading
01
01
U
C
“open circuit” or “MΩ” range
04
U
D
02
02
V
C
05
V
D
03
03
W
C
06
W
D
U
V
C
D
W
2
1
3
2
1
3
2
1
3
SCR Module 01
SCR Module 02
SCR Module 03
U
C
V
D
W
Содержание Allen-Bradley PowerFlex 20P
Страница 1: ...PowerFlex Digital DC Drive Frame B Catalog Numbers 20P Hardware Service Manual OriginalInstructions ...
Страница 8: ...8 Rockwell Automation Publication 20P TG002B EN P February 2018 Preface Notes ...
Страница 102: ...102 Rockwell Automation Publication 20P TG002B EN P February 2018 Chapter 3 Part Replacement Procedures Notes ...
Страница 128: ...128 Rockwell Automation Publication 20P TG002B EN P February 2018 Index Notes ...
Страница 129: ......