Precision Zone Expertly Repairs Drives-AC Servo Mitsubishi MDS-B-SVJ2
Here at Precision Zone, one of our specialties is the repair services of Mitsubishi MDS units. One series that we often work on is the MDS-B-SVJ2 series.
Mitsubishi's MDS series of servo drives are a modular and efficient series of servo and spindle drives. These units are similar in style to the MR-J2 and MR-J2S servo drives. Ranging in size from 0.1kW to 2.0kW, this series is designed for lower output wattage and high precision. Allowing one and two axis offerings, the MDS-B-SVJ2 series of drives offer a slim, compact package without sacrificing performance.
When assessing the functionality of a drive, our repair team conducts a four-step check:
- 1. Visual Overview
- 2. Static Test
- 3. Checks Under Power
- 4. Alarm Codes Verification
This overview is Precision Zone's basic troubleshooting process. Once our repair team starts on the job, we use specialized and customized testing fixtures, Huntron trackers, signal generators, oscilloscopes, milli and megaohm meters, as well as any other necessary tools we have available to assure quality repair work. Most importantly, every repair is fully tested in our custom-built simulators under load with a motor to replicate real-life working environment.
Precision Zone goes as far as using heating chambers and overnight dynamic testing, when applicable, to guarantee performance of the repaired product when it arrives back with the customer.
Repair Process for Mitsubishi MR-S2 AC Servo Drives
Visual Overview
When conducting a visual check, the technician inspects the drive for any mechanical damage to the drive itself and any printed circuit boards (PCB). The technician then proceeds to verify connections are tight and correct inside the drive and there are no loose screws, wires or debris. Additionally, the unit is checked for any burn marks on the components, PCBs or chassis. During the visual inspection, excessive dirt on cooling components is noted as well as the functionality of the heat sink.
Basic Static Check
Input Module Testing
The input modules on these units can be tested by use of a digital multimeter with diode checking capabilities. Upon removing the cover, all of these terminals can be located along the terminal strip found within the unit.
Positive Lead | Negative Lead | Reading |
---|---|---|
U (L1) | 'P' Terminal | 0.31V - 0.33V |
V (L2) | 'P' Terminal | 0.31V - 0.33V |
W (L3) | 'P' Terminal | 0.31V - 0.33V |
'N' Terminal | U (L1) | 0.31V - 0.33V |
'N' Terminal | V (L2) | 0.31V - 0.33V |
'N' Terminal | W (L3) | 0.31V - 0.33V |
Output Module Testing
Using the same type of test as above, the output modules can be checked as well. Our technicians are also equipped with huntron devices further verify their integrity.
Positive Lead | Negative Lead | Reading |
---|---|---|
U | 'P' Terminal | 0.31V - 0.33V |
V | 'P' Terminal | 0.31V - 0.33V |
W | 'P' Terminal | 0.31V - 0.33V |
'N' Terminal | U | 0.31V - 0.33V |
'N' Terminal | V | 0.31V - 0.33V |
'N' Terminal | W | 0.31V - 0.33V |
Common Alarms for the Mitsubishi MDS-B-SVJ2 Servo Drive Units
Alarm Code | Description | Quick Checks |
---|---|---|
10 | Insufficient Volatage |
|
25 | Absolute Position in Detector was Lost |
|
30 | Over Regeneration |
|
3A | Over Current |
|
This list of checks for certain alarms is primarily a good starting point and if any further troubleshooting or technical support is needed feel free to contact us via phone or email to get in touch with our experienced tech support team.
Precision Zone offers free technical support on any component that you may be having issues with. We understand that when your machine goes down, your business stops. That is why our number one goal is to provide you with the best service possible so that you can get back up and running immediately. FFor any further product information or troubleshooting assistance is needed, please contact us via phone at 800-551-4420 or email us.
Precision Zone Repair Benefits for Mitsubishi MR-S2 Servo Drive Units
- Free quotes and evaluations by our expert technicians include:
- 12-Month Warranty on Our Parts and Labor
- Decades of Industry Experience
- Exchange Options
- Rush Service Options
Contact Us To Start Your Repair Today!
Recently Repaired Products
MDS-B-SVJ2-20
is an
Drives-AC Servo
manufactured by
Mitsubishi
Discovered issues:
Bad Battery, Bad Capacitor(s), Bad Circuit Board Component(s), Bad Control Section/Board, Bad Cooling Fans, Bad Power Section/Board, May Require Board Replacement, Multiple signs of previous repair
Drive Series: MDS-B-SVJ2 200-230V
Capacity: 2.0kW
MDS-B-SVJ2-10
is an
Drives-AC Servo
manufactured by
Mitsubishi
Discovered issues:
Bad Capacitor(s), Bad Circuit Board Component(s), Bad Gate Section/Board, Bad Magnetic Contactor, Relay, Bad Power Section/Board, Excessive Dirt/Debris, Failure Info Required for Further Evaluation
Drive Series: MDS-B-SVJ2 200-230V
Capacity: 1.0kW
MDS-B-SVJ2-04
is an
Drives-AC Servo
manufactured by
Mitsubishi
Discovered issues:
Bad Capacitor(s), Bad Circuit Board Component(s), Bad Magnetic Contactor, Relay, Bad Power Section/Board, Excessive Dirt/Debris, Leaky Capacitors (Open, Corroded Traces), Bad Output Transistors/SCRs
Drive Series: MDS-B-SVJ2 200-230V
Capacity: 0.4kW
MDS-B-SVJ2-01
is an
Drives-AC Servo
manufactured by
Mitsubishi
Discovered issues:
Passed Testing - Highly Recommend Recondition
Drive Series: MDS-B-SVJ2 200-230V
Capacity: 0.1kW
MDS-B-SVJ2-07
is an
Drives-AC Servo
manufactured by
Mitsubishi
Discovered issues:
Failure Info Required for Further Evaluation
Drive Series: MDS-B-SVJ2 200-230V
Capacity: 0.7kW
MDS-B-SVJ2-06
is an
Drives-AC Servo
manufactured by
Mitsubishi
Discovered issues:
Bad Circuit Board Component(s), Bad Power Section/Board, Excessive Dirt/Debris, Leaky Capacitors (Open, Corroded Traces)
Drive Series: MDS-B-SVJ2 200-230V
Capacity: 0.6kW