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fanuc repair

Automation Cleanup Procedures for Flood Damages in TX & LA

Automation Cleanup Procedures for Flood Damages in TX & LA

MRO Electric is determined to provide the best service and support to businesses affected by Hurricane Harvey during these difficult times as they resume operation and employees get back to work.

Water-immersed electronic devices and motors in automation systems need appropriate treatment after flood water subsides. We have compiled information we learned from our past flood relief activities below, which we think our customers affected by Harvey may find useful.

We also have the capability to wash and test the amplifiers and printed circuit boards at our repair facilities.

Recovering Industrial Electronics from Flood Damage

If the CNC and related equipment are treated properly after being soaked with flood water, it is possible to reduce or even recover from the damage. The purpose of this section is to describe proper post-flood treatment.

Things to keep in mind:

  • In case of flood, do not open cabinets and units. It is better to wait until the flood water recedes.
  • If it is possible to drain actively, the early drainage can reduce the damage.

Outline of the procedure after flood water recedes is as follows:

  1. Remove batteries & cables
  2. Wash the units
  3. Dry the units
  4. Check the insulation resistance
  5. Check the functionality (Performed by MRO Electric’s engineers)

Remove batteries & cables

In order to minimize a damage to unit, please perform following at first:

  1. Please remove battery cables from units and PCBs (Printed Circuit Board) as soon as possible. Flooded batteries may cause rust damage to PCB’s circuitry and could result in irreparable PCB damage. Removing the batteries will result in loss of CNC data, but it is necessary to protect the hardware from further damage.
  2. Remove cables before washing. Please properly tag or mark so you will be able to connect cables back correctly.

Washing the Units

Wash the units according to the procedure below as soon as possible. Damage will worsen if washing is delayed.

  1. Unit –  Floodwater often contains contaminates such as dirt and oil. This could stick to the unit and could become difficult to remove. Use a neutral detergent, such as multipurpose kitchen detergent, tap water, and nylon brush (do not use a metal brush) to clean them as much as possible. Use a small brush such as a toothbrush and clean the entire unit with specific attention to connectors and sockets.
  2. Relays –  If relays have water inside, please open the case and clean inside. (If the case cannot be opened, you will need to replace it.)
  3. Transformers –  It is not possible to clean inside a transformer coil, however, please clean the unit as much as possible especially around the electrical terminals.
  4. Cables –  Connector housings will contain flood water. Please disassemble the connectors to drain any water, clean them, and then dry by hanging the cable with the connector at the bottom. (It is also possible that flood water also enters between cable strands). Please be mindful of this.
  5. Servo and Spindle Motors – These motors cannot be disassembled by the customer.
    Please have MRO Electric’s engineers clean these parts. If you see waters entering inside the cover on the motor, the cover may be removed to release the water and carefully clean around the feedback assembly.
  6. Motor Drive Units – Please use flowing water to clean the motor drive units. Please refrain from submerging the unit during cleaning.

Drying Units

After washing, please remove as much water as possible and let then dry. The electrical resistance is lower due to the moisture, so please do not attempt to mount or apply electrical power until the unit is completely dry. It will take a long time if you just leave the unit at room temperature. Transformers, especially, will require a few months if not dried to high temperature. It is necessary to use a high heat to evaporate the humidity inside the transformer.

Drying Oven
It is possible to gain enough insulation back in a few hours if you can use a drying oven with enough high heat. However, please be careful if the temperature is too high, it may melt the insulation material. A vacuum type drying oven may be useful for this type of equipment.

Here are a few examples of temperature and drying time for FANUC products, after removing as much water as possible by hand:
· Servo Transformer – In 120 degree C (248 degrees F) for 8 hours
· Servo Motors – In 80 degree C (176 degrees F) for 12 hours (with Pulse coder removed)
· PCB (Printed Circuit Boards) – In 60 degree C (140 degrees F) for 1 hour.

Without a Drying Oven
Please prepare a fanned heater. It is a good idea to use a hair dryer to send heated air (around 140 degrees F is desirable). Please be careful as it may become too hot if you send the air directly to the unit. PCB and units may be dried in a half, to one full day, but the transformer may take a few days.

Check the Insulation Resistance

It is very important that insulation resistance is tested before applying power.

  1. Transformer – Measure the insulation resistance using 500V Megameter between coils, and between coil and metals such as core. The measurement should be 10 Megohm or more.
  2. Servo Motors and Spindle Motors – Measure the insulation resistance between the motor windings and ground. The measurement should be 10 Megohm or more. Please note that the encoders may be damaged by the flood water. Please open the motor case and check. If you see the sign of entering the water, the encoders may need to be replaced.

Check the Functionality

MRO Electric engineers and machine tool builder engineers may need to work in sync because machine side repair and adjustment will also be required. If the insulation resistance is adequate, then the unit may be installed. Confirm all cable connections and wiring, then apply power and confirm the operation. If insulation is not sufficiently recovered due to insufficient drying, there is a possibility of ignition due to short circuit or heat generation, so pay attention to the generation of smell and smoke for a while after energization, immediately turn off the power when there is an abnormality.

If parameters were lost and a recent back up is not readily available, it is our recommendation to contact the machine tool builder to assist you. They will also be able to assist in any machine side adjustments and/or set up procedures before the final operation is started.

Our goal is to quickly and safely return your machine back into production. Do not hesitate to contact MRO Electric if you believe your equipment is damaged and is in need of testing and/or repair, or if you require a replacement part.

Please contact us at 800-691-8511 or at sales@mroelectric.com.

FANUC Servo Motor Repair

MRO Electric and Supply provides fast and reliable FANUC servo motor repairs on all types of FANUC motors. Our factory-trained repair technicians have years of expertise with FANUC servo systems, and our facility provides them best in class testing equipment that will have your FANUC motor repaired, tested, and aligned precisely to the manufacturer’s specifications.

Our large inventory of spare parts and replacement components allow for us to repair your motor quickly to get you back up and running with minimal downtime. MRO Electric is able to recondition and test each of your motor’s components. This includes performing re-windings and replacing bearings, as well as repairing armatures, housings, encoders, resolvers, output shafts, and flanges.

FANUC Servo Motor Repair
FANUC Servo Motor Repair

As one of the nation’s leading FANUC servo motor repair specialists, MRO Electric places a strong emphasis on reliable customer service, great pricing, fast turnaround, and quality repairs. Each of our FANUC repairs come with a minimum 12-month warranty. MRO Electric can repair all FANUC motors and parts, both new and old.

FANUC Motor Repair
FANUC Motor Repair

Once your motor is received, it is thoroughly cleaned and reconditioned. Our trained technicians disassemble, inspect, and test each individual motor component. After each non-functioning component is replaced or repaired, we test motor function fault, brake, encoder, and thermistors. We then commission the motor using one of our drives, testing it in both forward and reverse for at least an hour.

MRO Electric also stocks both new and refurbished FANUC motors with rush shipping options available. If you require a working motor immediately, you can take advantage of our core exchange policy to return your non-functioning motor in for credit.

For a free FANUC servo motor repair quote, please email sales@mroelectric.com or call 800-691-8511.  For more information on our FANUC repair capabilities, you can visit our FANUC Repair page.

FANUC Drive Repairs from MRO Electric and Supply

Here at MRO Electric and Supply, our repair shop is designed to provide the highest quality drive repairs on all FANUC spindle and servo amplifiers. With a variety of testing platforms and a large stock of replacement components, we can fully repair and refurbish your FANUC drive to “like new” condition.

Each of our FANUC Drive repairs come with a 12-Month Warranty.
FANUC Drive Repair
FANUC Drive Repair – Before and After

Our Process:

  1. Inspection / Disassembly
    When your non-functioning FANUC drive is first received, our repair technicians go to work inspecting, disassembling, and thoroughly cleaning your unit.  Throughout this process, we will evaluate your drive to determine the primary cause of failure.
  2. Component Replacement
    Our technicians test and replace any non-functioning components on your FANUC Drive. We also replace any worn parts, as well as components that are prone to failure. This includes resistors, diodes, IGBT’s, capacitors, electrolytic caps, relays, and fans. We continue to troubleshoot and replace components until we are confident that your FANUC drive can move onto the testing phase.
  3. Testing
    With our numerous testing platforms, we perform a variety of dynamic functional tests on your FANUC drive to ensure reliability. After these procedures, your FANUC drive is left to run overnight in our facility to certify its consistency.
  4. Shipping
    Once your FANUC drive has passed our strict testing and quality control procedures, it is carefully packaged and shipped back to you in perfect working condition.

 

Our repair pricing can save you up to 75% compared to buying new drive. Save time and reduce costs by having your FANUC drive refurbished by the experts here at MRO Electric. 
For more FANUC Drive repair information or to request a free quote, please call 800-691-8511 or email sales@mroelectric.com.
Simodrive Repair

Siemens Drive Repair

Have a Siemens Drive down? Get an Instant Quote now.

At MRO Electric, we are constantly fine-tuning and upgrading our repair capabilities and turnaround times. We perform Siemens drive repairs and refurbishments on Simodrives, Sinamics, Sinumerik, Micromaster, and Simoreg drive series. We also perform repairs on Simatic panels and a variety of Siemens motors. We offer quick, pre-priced repair estimates so you know from the beginning how much your repair will cost.

Our mission is to keep our Siemens drive repairs to the highest quality standards while retaining our lowest cost guarantee. We want to get your machine back up and running as quickly as possible. Our normal turnaround time for Siemens drive repairs is 7-10 days, but we can often accommodate rush repair jobs if necessary.

Simodrive Repair
Dynamic Testing being performed on a Simodrive

Once we receive your Siemens drive, it is thoroughly cleaned and visually inspected for any visible deficiencies. We then methodically test every component on the drive, replacing any that no longer function or meet our strict quality standards. After all faulty components are replaced, the drive must complete all of our functional testing requirements before being packaged and shipped back to its owner.

All of our repairs come with a 12-Month Complete Coverage Warranty. If any problems occur in that time frame, MRO Electric will repair or replace your drive at no charge.

For more information or to request a repair quote, please visit our Siemens Repair page. You can also email sales@mroelectric.com or call 800-691-8511.

Fanuc AC Spindle Motor Repair

We recently rebuilt a Fanuc AC Spindle Motor, part number A06B-0828-B302. The customer was in a rush and needed this 357 lb motor so that he could get back up and running right away. We didn’t have the motor in stock, but we did have all of the parts in stock to build the motor.

Within 3 days we were able to rebuild, repaint, and fully test the motor to get it ready to go back out via freight to the customer, so they were back up and running in less than a week.

Our rebuilds for these size motors usually take 2-3 days, so we were right on schedule for this Fanuc motor. We have the full list of motors that we stock and repair here, and you can email sales@mroelectric.com for more info. We also have pictures of the finished product below as an example.