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Rockwell Automation Publication 20P-TG004C-EN-P - September 2021
17
Component Test Procedures
Chapter 2
Troubleshoot a Control
Power Supply Failure
If a drive Power Failure fault (F3) has occurred and the drive is inoperable via the
HIM or other means of control, compete the steps below to determine where the
control power failure has occurred.
1.
Read the General Safety Precautions on page
.
2.
Remove the bottom control panel and I/O and control terminal covers
from the drive. See Protective Cover Removal and Installation on page
3.
Measure the signal voltage at the testpoints on the control board as
indicated in the following table.
Note: For a flow chart version of the steps that follow, see Control Power Supply
Failure on page
.
Name
Testpoint For
Testpoint
Location
See…
Associated Connector-
Pin
Description
+ 5V
XY5
on page
XA-1 / XA-3 / XA-5
+5V digital supply
GNDD
XY6
on page
XA-2 / XA-4 / XA-6
+5V digital supply ground
GNDD
XY7
on page
XA-2 / XA-4 / XA-6
+5V digital supply ground
+15V
XY12
on page
XA-9 / XA-10
+15V analog supply
GNDA
XY10
on page
XA-11 / XA-12
15V analog supply ground
-15 V
XY11
on page
XA-13 / XA-14
-15V analog supply
+24V
XY8
on page
XA-16
+24V terminal block
GNDV
XY9
on page
XA-15
+24V terminal block ground
+5VEXP
+5VEXP
on page
XP3-1 / XP3-2 / XP3-3
+5V for DPI expansion
+12VEXP
on page
XP3-4 / XP3-5
+12V for DPI expansion
0VEXP
0VEXP
on page
XP3-7 / XP3-8 / XP3-9
DPI expansion ground