Recent Job Report #2- ALLEN BRADLEY 1391 AC Servo Controller Repair

5

Last week, we received in an Allen Bradley 1391B-AA45 AC servo controller for repair.  We have repaired hundreds of these units and have a high rate of success.  This customer, in the automotive industry, said they needed it back in a week, if that was possible.  We had it back to them in 3 days.  We cleaned and baked unit, replaced fan and several components at the board level and more.  If you need a repair of your servo drive or other automation equipment, please call 1(888) 706-5263 for immediate service.  To browse our inventory, go to www.repairzone.com  Enjoy!

pic2- cropped                     pic3

Very contaminated Allen Bradley servo controller.   Technician Adam H. removes logic board

                                                                                   during disassemble.

pic4-cropped   pic5-cropped

Removing driver board.                                            Heavily contaminated Driver board.

pic6                     pic7

 

Removal of DC bus capacitor.      High current area with heavy contamination, on IGBT’s as well.

pic8-croppedpic9-cropped

Full disassemble of unit.                                                          Testing driver board before cleaning.

pic10                     pic11

 

Discuss troubleshooting using schematics.    Contaminated fan leads to many problems: Fan

                                                          replaced.

pic12                     pic13

 

Adam cleans logic board.                                              Cleaning driver board.

pic14                     pic15

 

Baking components to eliminate moisture.  New components installed, including preventative

                                                                            replacement of aged or worn.

pic17pic18

 

Soldering in new resistors.                                                             Installing DC bus capacitor.

pic19pic20

 

Driver board mount  and install.                                 Finishing assembly of drive housing.

pic21-croppedpic22-cropped

 

Final logic board connect and mount.        Test cart connection for final run test and evaluation.

pic23                     pic24

 

Successful run test with Allen Bradley servo motor.        Drive is ready.

pic25                     pic26

                                                  Final.

                          Call Repair Zone 1-888-706-5263

Submit a comment

2 Comments

  1. Victor,

    Hello, we have received your request but were unable to retrieve any contact information for you. Please call 1-888-706-5263 or email us at support@repairzone.com so we can properly assist you.

    Thank You,
    Cammy

Submit a Comment

We would love to hear your thoughts. Feel free to submit a comment and join the conversation!