Repair of Mitsubishi Drive Electronics

MDS-A

MDS-B

MDS-C / CH

MDS-D / DH / D2

Mitsubishi Drive Electronics

We test and repair Mitsubishi AC power supplies as well as spindle and servo modules.
Additionally, we offer service for Mitsubishi motors.

Video: Mitsubishi AC Servo Spindle Drives MDS-A/B/C/D/DH. Test und Reparatur bei industrypart GmbH

We specialize in the following series:

MDS-A
MDS-B
MDS-C / CH
MDS-D / DH / D2

Our repair process is preventive-oriented and includes a series of steps that contribute to ensuring high repair quality.

Fault analysis and localization

What can you do?

Faults in power supplies, servo, and spindle modules.

Possible solutions and hints

Try replacing the motor as a test.
Check cable connections.
Operate in jog mode without load.

If these measures do not help, the fault usually lies in the power stage of the drive module.

For additional error messages, refer to the alarm list available for download at the end of this page.

Possible solutions and hints

Warm the device with an external source. If it then turns on, this indicates a weak power supply that needs repair.
Check fuses.
Verify the voltage supply of 3 x 200 or 220 volts depending on the model.

For additional error messages, refer to the alarm list available for download at the end of this page.

Possible solutions and hints

For the power supply, this could mean that the connected consumers (servo or spindle drives) are causing an overload.
Solution: Gradually remove or replace consumers to locate a faulty device.

In the case of servo and spindle modules, a faulty motor can trigger an overload.
Solution: Check the motor and connection cables.

However, in both cases, the device itself can be the cause of the error, as its power output stage may be defective.

For additional error messages, refer to the alarm list available for download at the end of this page.

Handling parameters

When parameterizing, it is crucial to save the settings early and also document jumper and key settings.

What should be considered when parameterizing?

The parameters are not stored in the devices but in the machine. The user must perform this process independently at the machine.
Pay attention to jumper and key settings and it's best to take photos of them.
Obtain the appropriate documentation or software for setting the parameters.
You will find further documentation on this topic at the end of this page or ask us.

MDS-A-CR-90 Power Supply Unit

2550.00 €

Buy

MDS-A-CR-75 Power Supply Unit

2185.00 €

Buy

MDS-B-CVE-55 Power Supply Unit

1990.00 €

Buy

MDS-C1-SP-110-N Servo Drive Unit

2000.00 €

Buy

MDS-C1-V2-2003 2 Axis Unit

2275.00 €

Buy

The typical process for repairing Mitsubishi drive modules

Technician connects device to the MDS test bench

The repair process for drive modules includes the following steps:

Preventive overhaul - replacement of all necessary defective and worn parts.
Intensive cleaning.
Comprehensive final and stress tests on our test benches.
Parameter matching or restoration of parameters.
Completion of documentation and checklists.

VIDEO: Repair and test process of Mitusbishi AC Servo/Spindle Drives MDS-A/B/C/D/DH

High-quality spare parts for high-quality repairs

Storekeeper retrieves spare part from the warehouse

For Mitsubishi drive modules, we replace

Electrolytic capacitors
Large buffer capacitors
Relays
Current measuring modules
Optocouplers

Additionally, we replace certain parts that have been frequently failing over multiple repairs and have been statistically selected for replacement.

To counteract bottlenecks and discontinuations, we have process-oriented software solutions that monitor our inventory. We order some parts in advance, and for series repairs, we even secure ourselves with sufficient spare parts for a year to ensure access to a large stock at any time.

Quality and Level of Repair

A professional repair requires the use of a test bench. Specially tailored and complex testing equipment is developed for each new series. The devices are thoroughly checked for functionality by undergoing a long-term stress test.

Control of the testing procedure and analysis at the MDS test stand

Connection of a device to the MDS test stand

The test is conducted on a test bench that allows a 100% simulation of processes as in a real machining machine with Mitsubishi control.

During the test, the following are checked:

BUS control
POT/NOT
Encoder connection
Alarm states
Speed
Current and voltage consumption
Temperature
Parameters

VIDEO: Repair and test process of Mitusbishi AC Servo/Spindle Drives MDS-A/B/C/D/DH

We continuously expand our repair portfolio with new series

Since drive and power electronics are often prematurely discontinued, you may be under pressure to deliver replacements to your customers on time. We assist you in analyzing bottlenecks and work together on optimal solutions.

The typical process includes:

Development of test stands and procedures
Organization of spare parts
Preventive repair at the component level
If needed, development of new or re-engineering of modules or complete devices

Frequently Asked Questions (FAQ)

Drive module repair

In which quality/level are load tests performed at your company?

Complex and specially adapted test equipment is developed for each new series. Devices are tested with long-term load test thoroughly checked for functionality. Get an idea of our test facilities.

Do you have special spare parts, which are necessary for qualitative repair?

In times of shortages and discontinuations, we have process-oriented software solutions that monitor our inventories. We order some parts in advance, for series repairs even for 1 year, so that we can fall back on a large stock of spare parts. Certain modules are re-engineered by us.

Can you parameterize the devices?

If possible, a copy of the parameters is always read out and stored upon receipt. After successful repair, the data is compared and in case of exchange or sale, original parameters are transferred or restored to the new device. We have all the necessary hardware as well as software applications to parameterize Yaskawa devices according to the specifications.

What processes are involved in the repair of drive modules?

The repair process for drive modules includes, but is not limited to, the following:

Preventive overhaul - replacement of all necessary defective and used parts. E.g. electrolytic capacitors, transistors, optoelectronic components.
Intensive cleaning
Extensive final and load tests on our test stands
Parameter adjustment or parameter recovery

You can find more information on the process flow for drive module repair here.

Further information

What are the example type designations for this device series?

Servomodule MDS-B-V2-3535, MDS-B-V2-0505, MDS-C1-V2-4545, MDS-B-V1-45, MDS-C1-V2-4520, MDS-B-V2-1010, MDS-B-V2-3510
Spindelmodule MDS-B-SPH-55 , MDS-B-SPM-110, MDS-B-SP-150, MDS-B-CV-185, MDS-A-SP-185, MDS-B-SP-150, MDS-C1-SP-185
Netzteilmodule MDS-B-CV-110, MDS-B-CVE-185, MDS-A-CV-300, MDS-B-CV-300, MDS-B-CVE-260, MDS-C1-CV-300

Will I get a detailed repair report after a successful repair?

We document the repair process for every order. You can download a detailed description of the process here.

Do you commission new or unknown equipment?

We are continuously looking for new areas of activity. After consultation with the customer, we determine the necessary steps for a safe and qualitative repair

Can it happen that after repair my device continues to show errors?

It may happen that error messages continue to be displayed with the connected device. Already during the analysis of the errors, we give the customers suggestions for solutions for different malfunctions and errors. error cases, if we suspect further error causes. Errors and faults are documented, among other things, in the log file of the respective device, which may indicate, for example, encoder communication problems, cable defects or overloads.

What does serial repair or overhaul mean

Many of our customers have defective devices of the same model in larger quantities. We have optimized our processes for series repair and have the capacity to repair many devices in parallel quickly and to a high repair many devices in parallel.

Cost & Warranty

What are the costs for repair or overhaul? What does "flat repair rate or standard repair price" mean?

The repair process itself represents a high degree of technical complexity, which we always want to master with a qualitative and long-term solution for you. solution for you. However, the maintenance of these quality characteristics requires, to agree on a repair flat rate or standard repair price. We communicate honestly and transparently all the information you need. For example, prices, previous and completed work steps, delivery times, etc.

Is there a warranty for the respective repair?

Basically we give 12 months warranty.

MDS-A-B-Servo-Spindle-Powersupply-Alerts.pdf (7.48 MB)