Published industrial drive families
Enter through a drive family when you know the product line but need to identify available model, fault, circuit or board records.
Legacy general-purpose AC drive / VFD repair platform — A focused service cluster for older Fuji FRENIC5000 G9 / G11 drives where the expensive problem is not the first blown module but the repeat failure after module replacement. The record separates rectifier-only damage, gate-driver leakage, module authenticity and safe fake-load evidence.
Fan/pump and general-purpose MICROMASTER 4 AC drive platform — Service-oriented MICROMASTER 430 / 440 coverage that connects F0001, F0002 and F0003 searches to the installed model, ramp/load context, input-precharge evidence, DC-link behaviour and power-board repair boundary.
Industrial AC drive / VFD family — PowerFlex coverage is organized around field searches that usually combine a fault number with a production symptom: F12 hardware overcurrent, F13 ground fault, F5 DC bus overvoltage, F4 undervoltage and F81-F86 DPI port loss.
High-performance AC servo/vector drive family — Control Techniques coverage starts with high-value Unidrive SP/M symptoms: OI.AC overcurrent, Over Volts during deceleration, PS.24V control supply overload, O.ht thermal trips and feedback instability in closed-loop applications.
Industrial AC drive / VFD family — ATV61 and ATV71 coverage is organized around high-frequency maintenance symptoms: overcurrent, motor short circuit, overvoltage during deceleration, undervoltage / supply loss and terminal-control evidence before a drive is replaced.
Industrial AC drive / VFD family — Danfoss VLT coverage starts with FC-series service routes that technicians commonly search for: alarm 14 earth fault, alarm 16 short circuit, alarm 4 mains phase loss, overvoltage during deceleration and alarm 29 heatsink temperature.
Standard industrial AC drive / VFD family — ACS510 and ACS550 coverage captures the high-frequency field-service layer: keypad operation, terminal control, DC undervoltage, overcurrent at acceleration, line-converter indication and maintenance evidence before a board or drive exchange is considered.
Industrial AC drive / VFD diagnostic framework — A search-led diagnostic track for high-frequency VFD symptoms: no display, overcurrent at startup, DC bus overvoltage during deceleration, ground-fault trips, output phase-loss indications and repeated IGBT module failures after repair.
Legacy industrial DC drive / thyristor converter family — Demand-validated Parker SSD / Eurotherm DC drive coverage connecting 590P/591P digital DC converter faults and 514C analog controller symptoms to armature-current feedback, field supply, thyristor firing, no-display and repair-or-retrofit evidence.
Industrial AC drive / vector-control inverter family — Coverage for SJ300/L300P overcurrent, overload, DC-bus voltage and no-display problems, using public manual demand and reviewed SJ300 5.5 kW / 7.5 kW board drawing sets.
Legacy compact AC drive / VFD family — Danfoss VLT 2800 and VLT 2900 coverage links common alarms such as DC-link undervoltage, overcurrent, earth fault and internal short-circuit symptoms to the reviewed CB and DB drawing sets for control supply, I/O and gate-driver evidence.
Discontinued / inactive compact AC drive family — VACON NXL coverage organizes end-of-life replacement pressure, public fault-tracing demand and reviewed DB1-DB4 power-board references into no-display, overcurrent, overvoltage and earth-fault diagnostic routes.
Fan and pump adjustable-frequency AC drive / VFD family — PowerFlex 400 coverage connects official installation and fault-navigation material with a reviewed 110 kW schematic set, focusing on DC-bus events, communication loss, output isolation and repair-versus-replace evidence.
Discontinued constant-torque AC drive / VFD family — ATV71 coverage connects official Schneider fault guidance, discontinued-drive spare-parts constraints, external 24 V control-power support and public repair/replacement demand into board-aware diagnostic workflows.
Legacy industrial VSD / VFD power-stage and control-board family — PDL UE Frame coverage maps reviewed schematic sheets labelled UE FRAME 4 and UE FRAME 5,6,7 to auxiliary supply, DC-bus, comparator protection and IGBT gate-drive diagnostic routes.
Legacy Emerson / Emerson Network Power VFD control-board family — Control-board fault coverage for EV1000 and EV2000 drives, focusing on no-display, POFF, E004/E010/E019, current-detection and low-voltage logic-supply failure evidence from repair notes and public manuals.
Legacy PWM inverter AC drive / adjustable-speed drive — Series 15H coverage connects official HW Power Supply, HW Ground Fault and DC-bus fault indications to a reviewed auxiliary-power schematic showing two controlled switching-supply regions, isolated feedback and bipolar control rails.
General-purpose AC variable frequency drive / VFD family — EDS1000 coverage begins with a concrete 2S0015 circuit record: bridge rectification and DC bus, isolated auxiliary rails, six A3140 IGBT driver channels, braking output, fan/relay control and A7840-based feedback paths.
Legacy sensorless-vector AC drive / VFD family — Starvert iS5 coverage connects the LS/LG product family and fault-history framework with a documented SV185iS5-4N0 control-power failure: IGBT damage followed by repeat CPU-board damage when an unstable 24 V supply rose to approximately 56 V.
High-performance 400 V class AC drive / VFD — FR-A740 coverage connects Mitsubishi official protection functions to reviewed circuit-drawing evidence for 7.5 kW, 15 kW and 37 kW hardware: auxiliary power, isolated gate drive, thermal/fan signals and controlled restart decisions.
High-performance vector-control AC drive / VFD — A1000 coverage begins with an identified 22 kW five-sheet circuit record and official fault logic, linking SC and GF trips to isolated supply rails, current-feedback channels, fan/relay interfaces and power-stage verification.
Industrial AC drive / VFD family — ACS800 coverage starts where repair decisions become expensive: PPCC communication between control and inverter interface electronics, short-circuit trips around the power stage, and AGDR-linked IGBT driver/module identification for larger frames.
Industrial DC drive / thyristor converter family — DCS800 coverage organizes the D1–D7 converter platform around the control, power-supply, measurement and field-exciter relationships that technicians need when an older DC drive cannot be returned to service safely.
General-purpose AC variable frequency drives — A model family with V/f and sensorless vector capability, expanded closed-loop vector capability on ALPHA6000V, RS-485 communication, programmable I/O and multiple terminal layouts across power ranges.
Industrial AC variable frequency drive — TD900 coverage begins with drive-board troubleshooting references for POFF display, E019 current-detection faults and braking-circuit checks after power-module damage.
Industrial AC variable frequency drive — Initial EV1000 records organize common technician observations around module protection, no-output cases following power-stage repair, fan symptoms and start-command failures.
Industrial AC variable frequency drive — A first technical record for the 55 kW power circuit, focusing on rectification, DC link, six-switch inverter stage, fan/contact detection and suppression components associated with the IGBT arms.
Fan and pump AC drive platform — A 7.5 kW to 250 kW drive family optimized for three-phase motor control in fan and pump applications, with PID, motor staging, energy-saving mode, belt-fault detection and configurable communications.
Legacy industrial vector-control AC drive system — A structured technical track for Siemens SIMOVERT MASTERDRIVES Vector Control systems, connecting the 6SE70 device family and 6SE71 cabinet context to CUVC control, DC-link/precharge behaviour, communication paths, power-stage drawings and high-value legacy-drive fault diagnosis.