TOSVERT VFDs
VF-AS1 and other TOSVERT variable frequency drives. IGBT module replacement, DC-bus capacitor service, gate-driver work, and PWM control verification.
NC Servo Technology - Westland, Michigan
734-326-6666
Independent Repair Shop. Industrial Toshiba Only.
Third-Party Repair of Toshiba TOSVERT Industrial Drives
Independent third-party repair of Toshiba industrial drive hardware: TOSVERT VF-AS1 series variable frequency drives, Toshiba servo drives, and motion controllers. Industrial Toshiba only, not consumer Toshiba electronics. Backed by a 19,000+ unit in-house inventory we pull aftermarket and donor parts from. NC Servo is not affiliated with Toshiba Corporation. Working on this kind of hardware since 1975.
TOSVERT VFDs
VF-AS1 and other TOSVERT variable frequency drives serviced at the component level.
Industrial only
Servo drives and motion controllers from the industrial Toshiba line. Not consumer.
One-year warranty
Standard on parts and workmanship for Toshiba drive repairs and rebuilt units.
Important Distinction
Industrial Toshiba is a different thing from consumer Toshiba
Toshiba is one of the larger Japanese conglomerates. The same name shows up on industrial drives, consumer electronics, medical equipment, semiconductors, and a lot of other products. NC Servo only works on the industrial drive and motion control side. The split below is what we do and do not.
Yes: we service
Industrial Toshiba
- TOSVERT VF-AS1 variable frequency drives
- TOSVERT VF-S15 and other industrial VFD lines
- Toshiba industrial servo drives
- Toshiba motion controllers
- Industrial control boards and amplifiers
No: out of scope
Consumer and other Toshiba
- TVs, laptops, and consumer electronics
- Home appliances, microwaves, AC units
- Medical imaging and diagnostic systems
- Semiconductor and memory products
- Power generation and rail systems
Service Coverage
What NC Servo does with a Toshiba industrial drive
Each Toshiba industrial drive is opened, inspected, and rebuilt at the component level. Failed parts come from inventory or off donor units, then the drive runs under load on the electronics bench before it ships back.
Servo drives
Toshiba industrial servo drives. Power-stage diagnostics, control-board work, feedback-channel verification, and bench testing under load.
Motion controllers
Toshiba motion controllers and industrial control boards. I/O modules, communication interfaces, and signal-conditioning electronics.
Toshiba Coverage
Toshiba models through the door
We are a small repair shop, not a Toshiba distributor. The families below are simply the ones that come through often enough to be familiar. If your part number is not on this list, send it anyway. We work on what we can.
TOSVERT VF-AS1
Variable frequency drives across multiple frame sizes. Common bench items: IGBT module replacement and DC-bus capacitor service.
Toshiba servo drives
Industrial servo drives with closed-loop feedback. Common bench items: power-stage rebuild and feedback-channel verification.
Motion controllers and legacy
Toshiba motion controllers, older industrial drive lines, and control boards on long-running automation systems.
Common Faults
What usually shows up on a Toshiba repair
A description of the symptom or the keypad fault code helps the diagnosis, but a model number is often enough. The categories below cover the kinds of trouble that come in across Toshiba TOSVERT and servo drives.
| DC-bus and supply | Failed bus capacitors after long service, blown input rectifier diodes, and failed gate-driver supply rails on TOSVERT VFD frames. |
|---|---|
| IGBT power stage | Blown IGBT modules, failed gate-driver circuits, and protection-trip faults on TOSVERT VF-AS1 and Toshiba servo-drive power stages. |
| Control and signal path | Control-board failures, failed voltage regulators, signal-conditioning drift, and bad I/O on motion controllers and servo drives. |
| Communication and feedback | Fieldbus interface faults, feedback-channel signal drift on servo drives, and keypad / display interface failures on long-running TOSVERT VFDs. |
Repair Path
From model number to ship-back
Most Toshiba jobs follow the same four steps. Lead time varies because some repairs need parts pulled off a donor unit, so we only commit to timing once a tech has the drive on the bench.
Get in touch
Phone or email with the Toshiba TOSVERT or servo-drive model number, frame size, kW or HP rating, and a quick note on the symptom or fault code.
Bench review
Once the drive arrives, a tech opens it, inspects the power stage and control boards, and runs it under load on the electronics bench to confirm what failed.
Cost & approval
We call back with the cost and a rough turnaround. Nothing happens without your sign-off.
Repair, test, ship
Failed components are replaced from inventory or off donors, the drive is verified under load, and the unit ships back.
Bench Verification
Each Toshiba drive gets verified before ship
Repaired Toshiba drives are tested under load on the electronics bench. Power-stage performance, DC-bus behavior, I/O response, and keypad / display behavior are all verified against documented procedures.
- DC-bus rebuild verified at rated voltage on the supply rail.
- IGBT module switching and gate-driver behavior checked under representative load.
- Keypad / display response and parameter readback verified on TOSVERT units.
- Feedback channel verified end-to-end on servo drives and motion controllers.
Inventory & Parts Pool
A 19,000+ unit pool with Toshiba hardware in it
NC Servo's in-house inventory holds over 19,000 valves and drives accumulated since 1975, including TOSVERT and Toshiba servo-drive donors. That pool is where the shop pulls aftermarket parts and donor components for older Toshiba drives that the OEM no longer stocks.
- Aftermarket and donor parts for TOSVERT VFDs, servo drives, and motion controllers.
- If we have a rebuilt match for your model, trade in your old drive for a discount on the rebuilt.
- No match on the shelf? We can suggest a comparable Toshiba or cross-brand option, or repair yours.
- Rebuilt drives carry the same 1-year warranty as a fresh repair.
Repair Scope
Where the line is on a Toshiba repair
NC Servo works on the drive hardware itself: power stage, DC bus, control boards, I/O modules, and feedback channels. Drive parameter setup, motion-program development, and getting the drive back on the machine stay with your team or your installer.
- Component-level board repair: power stage, control boards, signal-conditioning electronics.
- TOSVERT VFD power-stage and DC-bus rebuild on long-running units.
- Drive parameter configuration and motion programming remain on your side.
- Putting the drive back on the machine follows your normal startup process.
More on Toshiba Repair
Related pages and brands
Toshiba drives often share a panel or system with drives from related brands. The pages below cover related coverage and adjacent drive work.
Servo drive repair hub
The full range of servo drive and amplifier repair NC Servo handles, across the brands that come through the shop.
ABB drives
Another major industrial VFD brand the shop services. Often paired with Toshiba on the same control panel.
Allen-Bradley drives
Major US drive brand the shop services. Useful when Toshiba sits alongside Allen-Bradley on the same panel.
Repair vs replace
When component-level repair makes sense versus buying new or rebuilt.
Toshiba TOSVERT drive faulted out?
Give us a call with the TOSVERT or servo-drive model number, the frame size, and the fault code on the keypad if it still reads. We will check the shelf, and if we have a rebuilt match you can swap your old one for a discount. If we do not, we can suggest a comparable drive or repair the one you have.
FAQ
Common questions about Toshiba repair
A few things customers ask before sending a unit in. Anything not covered, give us a call at 734-326-6666.
Is NC Servo affiliated with Toshiba?
No. NC Servo Technology is an independent, third-party repair facility and is not affiliated with, authorized by, or endorsed by Toshiba Corporation or any related entities. All Toshiba and TOSVERT trademarks are the property of their respective owners.
Do you repair consumer Toshiba products?
No. We service industrial Toshiba products only: TOSVERT VFDs, servo drives, and motion controllers used in manufacturing and automation. We do not repair consumer electronics, home appliances, TVs, laptops, or anything in the Toshiba consumer line.
Which Toshiba drives do you cover?
TOSVERT VF-AS1 series variable frequency drives, Toshiba industrial servo drives, and Toshiba motion controllers. Send a model number and we will tell you what we have.
Can NC Servo recover parameters from a failed Toshiba drive?
Most failures are hardware, and the unit comes back working with its program intact. Corrupted programs are rare; if one is already corrupted before the unit reaches us, that's the one thing we can't recover.
How long does a Toshiba drive repair take?
It varies. NC Servo is a small independent shop, and lead time depends on the drive, what is wrong with it, and whether parts have to come off a donor unit. Give us a call once the drive ships in, and we can give a current estimate after a tech has looked at it.
What if the Toshiba drive is beyond economic repair?
If the drive is not fixable, we will let you know and help source a replacement: a rebuilt match if we have one on the shelf, or a comparable Toshiba or cross-brand alternative.
What is the warranty on a Toshiba drive repair?
One year on parts and workmanship for repairs and rebuilt units. Standard exclusions apply for line-side faults, improper installation, and out-of-spec operation. Verifying line voltage, supply protection, and load matching before powering up a repaired drive is recommended.
Toshiba Products We Service
13 models available
TOSHIBA
TOSHIBA
TOSHIBA ACV00301
Your TOSHIBA ACV00301 is essential equipment. Our technicians repair and test every unit on dedicated...
TOSHIBA
TOSHIBA
TOSHIBA 4T130GI-4055BOE
Every hour your TOSHIBA 4T130GI-4055BOE is offline impacts your bottom line. We offer expedited repair...
TOSHIBA
TOSHIBA
TOSHIBA 924571-1
A faulty TOSHIBA 924571-1 controller can cause major disruptions. We provide diagnostics and repair services...
TOSHIBA
TOSHIBA
TOSHIBA E28688B4
Stop waiting weeks for a TOSHIBA E28688B4 replacement. Our component-level repair restores your unit at...
TOSHIBA
TOSHIBA
TOSHIBA PFC-180
Need a TOSHIBA PFC-180 repaired right the first time? With 50+ years of electronic controls...
TOSHIBA
TOSHIBA
TOSHIBA TLC-2721
Looking for a reliable fix for your TOSHIBA TLC-2721? NC Servo Tech handles diagnostics, component-level...
TOSHIBA
TOSHIBA
TOSHIBA TOSUERT-130G1
A faulty TOSHIBA TOSUERT-130G1 controller can cause major disruptions. We provide diagnostics and repair services...
TOSHIBA
TOSHIBA
TOSHIBA VT130G1-2055BO
When your TOSHIBA VT130G1-2055BO electronic control fails, you need a fast solution. NC Servo Tech...
TOSHIBA
TOSHIBA
TOSHIBA VT130G2+4035
Trust your TOSHIBA VT130G2+4035 repair to a team that works on industrial servo drives and...
TOSHIBA
TOSHIBA
TOSHIBA VT130G2U4025
Looking for a reliable fix for your TOSHIBA VT130G2U4025? NC Servo Tech handles diagnostics, component-level...
TOSHIBA
TOSHIBA
TOSHIBA VT130G2U4035
Professional Repair for your TOSHIBA VT130G2U4035. We offer high-quality solutions. Inquire today!
TOSHIBA
TOSHIBA
TOSHIBA VT130G2U4055
Looking for a reliable fix for your TOSHIBA VT130G2U4055? NC Servo Tech handles diagnostics, component-level...
All Toshiba Products
- TOSHIBA ACV00301 - Model: ACV00301
- TOSHIBA 4T130GI-4055BOE - Model: 4T130GI-4055BOE
- TOSHIBA 924571-1 - Model: 924571-1
- TOSHIBA E28688B4 - Model: E28688B4
- TOSHIBA PFC-180 - Model: PFC-180
- TOSHIBA TLC-2721 - Model: TLC-2721
- TOSHIBA TOSUERT-130G1 - Model: TOSUERT-130G1
- TOSHIBA VT130G1-2055BO - Model: VT130G1-2055BO
- TOSHIBA VT130G2+4035 - Model: VT130G2+4035
- TOSHIBA VT130G2U4025 - Model: VT130G2U4025
- TOSHIBA VT130G2U4035 - Model: VT130G2U4035
- TOSHIBA VT130G2U4055 - Model: VT130G2U4055
- TOSHIBA VT130G7U4080 - Model: VT130G7U4080
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