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Illustrative light-production machinery, conveyor and control equipment

KONGRA LLC · Industrial & Automation

Industrial Equipment Diagnostics & Repair Support

Machine down, drive tripping or control module failing? Arrange repair and complex diagnostics for selected industrial equipment, with model-specific assessment for RF systems and test instruments.

  • Light production
  • Drives & controls
  • Documented findings
Brands & equipment

Production equipment & control platforms

Selected electromechanical and control-system faults on existing machinery. The machine, controller revision, technical access and required verification determine the accepted scope.

Drives, motors, PLCs & HMI

Machine will not start, drive trips under load or a servo alarm keeps returning? Selected VFDs, servo amplifiers, motors, sensors and control systems are assessed together.

  • Siemens
  • Allen-Bradley
  • Mitsubishi Electric
  • Yaskawa
  • ABB
  • Danfoss
  • SEW-EURODRIVE

Mixing, packaging & material handling

Selected process and vacuum mixers, filling or sealing machines, conveyors, gearmotors and pneumatic systems.

  • WELLCOS
  • MULTIVAC
  • Henkelman
  • SEW-EURODRIVE
  • SMC
  • Festo

CNC & production-machine auxiliaries

Coolant, lubrication, pumps, limit switches, drive faults and accessible control electronics; machine geometry and spindle rebuilds remain outside this diagnostic scope.

  • Haas
  • Mazak
  • Okuma
  • DMG MORI
  • FANUC
  • Siemens

Power electronics & legacy controls

No power, intermittent resets, overheating and unstable control power on selected machine supplies, drive modules, control boards and industrial PCs. Compare supported repair, exchange and replacement options.

  • Siemens
  • Allen-Bradley
  • Mitsubishi Electric
  • Yaskawa
  • FANUC
  • Beckhoff

RF generators & matching networks

Model-specific feasibility review for plasma-power equipment with power, cooling, communication or matching-control faults. Accepted work and the required verification are defined before repair.

  • Advanced Energy
  • MKS / ENI
  • Comet

Test & measurement instruments

Spectrum and network analyzers, signal generators and oscilloscopes: preliminary review of power, startup, cooling, interface and control-electronics faults. Measurement calibration is a separate scope.

  • Keysight / Agilent
  • Rohde & Schwarz
  • Tektronix

Equipment categories KONGRA supports

Selected light production, material handling and electromechanical systems

Light production equipment

Packaging, filling, sealing, labelling and small-batch production machines. Typical work: intermittent stops, jam and misfeed faults, worn drive components, heater and thermocouple faults, and machines that run but drift out of adjustment.

  • Intermittent stops and unexplained cycle faults
  • Heater, thermocouple and temperature-control faults
  • Worn belts, bearings, couplings and cam followers
  • Pneumatic leaks, valve and cylinder faults

Conveyors & material handling

Belt, roller and chain conveyors, transfer units and accumulation sections. KONGRA checks tracking, tension, drive alignment, gearmotor condition and the sensors and interlocks that stop a line unexpectedly.

  • Belt tracking, tension and splice condition
  • Gearmotor noise, heat and current draw
  • Photoeye, proximity and encoder faults
  • Start/stop and interlock circuit troubleshooting, without bypassing protections

Motors, drives & pneumatics

Electric motors, variable-frequency drives, gear reducers, pumps, blowers and compressed-air components. Diagnostics use electrical measurement rather than parts swapping.

  • Motor winding, insulation and current-balance checks
  • VFD fault-code reading and parameter review
  • Overload, contactor and capacitor failures
  • Air preparation, regulator and leak-down issues

Sensors, field devices & wiring

Field devices and wiring are a frequent starting point when a line stops, because a machine that appears to have failed is often responding correctly to a signal it is no longer receiving. KONGRA traces the signal path with instruments and documents what actually failed.

  • Photoelectric, inductive and capacitive sensor faults
  • Limit switches, safety switches and door interlocks
  • Thermocouples, RTDs, pressure and flow transmitters
  • Damaged cabling, connectors and terminal faults

Controls & automation support

Control-cabinet inspection, relay and contactor logic, HMI fault interpretation and PLC I/O verification on existing machines. KONGRA works with the machine as it is built and documented — this is troubleshooting support, not new control-system design.

  • Control cabinet inspection and thermal condition
  • Relay, contactor and control-power troubleshooting
  • HMI alarm interpretation against machine documentation
  • PLC input/output verification at the terminal

Selected CNC & machine-tool troubleshooting

Support on selected machine tools for electromechanical and auxiliary-system faults — coolant, lubrication, pneumatics, drives, limit and home switches, and enclosure hardware. Spindle rebuilds, control retrofits and machine-tool geometry realignment are outside KONGRA's scope.

  • Coolant and lubrication system faults
  • Axis limit, home and safety switch problems
  • Drive and motor overheating or fault codes
  • Auxiliary pneumatic and enclosure hardware

Scientific, laboratory & medical equipment

Selected non-life-support equipment

Repair and complex diagnostics for selected scientific, laboratory and non-life-support medical equipment. Life-support equipment is excluded.

Specialist services

Service scope and limits

Within scope
  • Electromechanical diagnostics and component-level repair
  • Field-device, wiring and control-circuit troubleshooting
  • Motor, drive, gearbox and pneumatic condition assessment
  • Documentation for internal maintenance records
  • Coordination with your own vendors and parts suppliers
Outside scope
  • Heavy process plant and high-voltage distribution
  • Life-support medical equipment
  • Safety-rated system design, validation or certification
  • Turnkey automation integration and control retrofits
  • Machine-tool geometry realignment and spindle rebuilds
  • Any work requiring a license KONGRA does not hold

Regulated electrical, gas, refrigerant and contractor-licensed work is performed only within KONGRA’s legal license, insurance and practical service scope. Where a licensed specialist is required, KONGRA says so and can coordinate with a properly licensed independent contractor.

Drive and motor diagnostic information

Please identify the exact drive, motor and driven load, and say whether the machine stops under load or fails at startup — they point in different directions. Capture the active code as displayed, along with the operating conditions and the event immediately preceding it, before anyone resets the drive: the display and machine state can change on reset, and whether any history is retained afterwards depends on the controller.

Documentation is read against the model and revision that match your equipment. One example is the Nidec / KB Electronics KBPC-225 installation and operation manual (19 pages, including the KBPC-225D supplement A42114 Rev C02 dated 22 February 2017 over underlying A40350). It covers that DC drive family only, not AC variable-frequency drives, and no settings, wiring or protection-bypass instructions are published here.

For AC drives the reference is a different document family. One example is the Allen-Bradley PowerFlex 523 and 525 user manual 520-UM001O-EN-E (September 2025, 274 pages; fault material in chapter 4, pages 159–166). It applies to those AC variable-frequency drive models only, and the 523 does not carry every fault the 525 does. That is a separate document family from the DC drive manual above, and the two are not interchangeable. More on how these are read: VFD faults & motor drive diagnostics.

Equipment evidence

Power on does not establish a healthy control system

The public WELLCOS WC-CLM-005 record contains supplied equipment and control-cabinet photographs, a powered display and reported lack of response. It is remote intake and diagnostic planning, not a confirmed failed PLC, recovered program or completed on-site repair.

Read the WELLCOS observations and proposed diagnostic approach

Frequently asked questions

What kind of industrial equipment does KONGRA look at?+

KONGRA supports selected production equipment, conveyors, packaging machines, pumps, motors, drives and control electronics. RF generators, matching networks and test instruments can be submitted for preliminary model-specific assessment of accessible power, cooling, control or interface faults. Heavy process plant, high-voltage distribution and safety-rated systems are outside KONGRA's scope.

Is this a full automation integration service?+

No. KONGRA provides diagnostics, electromechanical troubleshooting and component-level repair support. KONGRA does not sell turnkey automation integration, and does not claim manufacturer authorization for any control platform.

How does an industrial diagnostic visit work?+

The visit starts with a paid diagnostic. KONGRA reviews the fault behaviour, checks power, control and mechanical condition with instruments, and documents what was measured. A written estimate follows the inspection, and work proceeds only after your approval.

Can KONGRA work on equipment that needs a licensed specialist?+

Regulated electrical, gas, refrigerant or contractor-licensed work is performed only within KONGRA's legal license, insurance and practical service scope. Where a licensed specialist is required, KONGRA says so and can coordinate with a properly licensed independent contractor.

Do you provide documentation for a maintenance department?+

Yes. Findings, measured values, parts used and recommendations are written up so an internal maintenance or facilities team can keep the record with the asset.

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Selected machinery, drives and control systems.