
16
Rockwell Automation Publication 20P-TG002B-EN-P - February 2018
Chapter 2
Component Test Procedures
5. Remove AC control power from terminals U2 and V2 and remove and
test the fuse (F1) at the top of the drive. See Remove the Fuses on the
Switching Power Supply Circuit Board on page
for fuse location.
• If the fuse is blown, continue with step 6 below.
• If the fuse is not blown, replace the switching power supply board
).
6. Replace the fuse on the switching power supply board (see page
).
7. Disconnect the cable at connector XA on the control board. See
for location of connector XA.
8. Apply AC control power to the drive.
• If the fuse blows, continue with Testing the Switching Power Supply
• If the fuse does not blow, continue with Testing the Control and
Field Board Connections on page
.
Testing the Switching Power Supply and Pulse Transformer Boards
1. Remove power from the drive (see page
2. Replace the fuses on the switching power supply board (see page
).
3. Remove the switching power supply board from the drive (see page
4. Reapply power to the switching power supply board only.
• If the power supply fuses do not blow, continue with step 5 below.
• If the power supply fuses blow, replace the switching power supply
board (see page
5. Remove all incoming AC voltage from the drive.
6. Check all external wiring connected to the pulse transformer board,
including the motor PTC if used, for a possible short circuit condition.
Repair any short circuit conditions if found.
7. If no short circuit conditions exist, replace the pulse transformer board
).
Testing the Control and Field Board Connections
1. Using an ohmmeter, check all input and output wiring on terminals
1…40 on terminal blocks TB1 and TB2 on the control board for a
possible short circuit condition. Repair any short circuit conditions if
found.
2. If an encoder and/or tachometer is used, use an ohmmeter to check all
wiring on the respective terminals for a possible short circuit condition.
Repair any short circuit conditions if found.
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 ...
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