Delta Electronics: who they are and where they sit in industrial automation
Delta Electronics is a Taiwanese company founded in 1971 by Bruce Cheng in Taipei. It started with TV components and grew into a global power-electronics player: power supplies, UPS, PV inverters, frequency inverters, servo drives, PLCs and operator panels. Over 30,000 employees, factories on several continents, in-house R&D centres. In industrial automation Delta is a solid upper-mid tier: not European-premium pricing like ABB or Siemens, but nowhere near a no-name from AliExpress either. The way the equipment behaves, the documentation and the service are closer to European analogues than to budget Chinese drives.
People come to us for Delta in three typical situations. First — the engineer has worked with Delta before and knows what to expect: a VFD-E runs for years, DVP/AS PLCs program cleanly, an ASDA servo holds its dynamics. Second — they want a price/quality/documentation balance: cheaper than Schneider or Siemens, but without surprises. Third — they are building an ecosystem: a Delta drive + Delta PLC + Delta HMI "see" each other over Modbus and Ethernet, integration takes less time. If the brand is not critical and the budget squeezes harder, INVT or Veichi are cheaper; if the spec calls for a European brand, look at Schneider Electric. Delta sits in the middle, and that is its natural place.
What Delta Electronics we carry — a map of the directions
The catalogue has over 600 Delta Electronics items across five directions. Below is a map with links to the relevant sections — each direction is detailed further down the page.
Delta frequency inverters
The best-known direction: VFD-E, VFD-EL, VFD-EL-W, MS300, VFD-C2000, VFD-CP2000, VFD-C200, VFD-ED. Section: Delta Electronics frequency inverters. The fast-movers VFD-E and VFD-EL at 0.4-7.5 kW and MS300 are mostly in stock; heavy C2000 and pump-oriented CP2000 are partly to order.
Delta ASDA servo drives
The ASDA-A2 (high-performance general-purpose), ASDA-B2 (basic) and ASD-M (multi-axis) families. Section: Delta Electronics servo drives. This is our largest Delta block by range — ASDA-A2 servos go into machine tools, winders, cutting machines, manipulators.
Delta programmable controllers
The DVP line (compact: ES2/EX2, SS2, SA2, SX2, EH3, SV2 and relatives) and the AS line (modular: AS200, AS300, AS500). Section: Delta Electronics PLCs, with the fast-moving AS series. Delta PLCs go into machines, conveyor lines, simple SCADA nodes — often paired with a Delta drive and panel.
Delta HMI operator panels
The DOP-A (DOPA) and DOP-B (DOPB) families plus legacy TP. Section: Delta Electronics operator panels. Taken alongside a DVP/AS PLC or a VFD drive as a local operator terminal or a small machine HMI.
Accessories: braking resistors, EMC filters, expansion boards
BR-series braking resistors for dynamic applications — Delta braking resistors; input EMC filters — Delta EMC filters; communication and signal boards for drives and panel accessories — Delta operator-panel options. These are companion items to the drive equipment, not a standalone range.
Delta frequency inverters: which series for which job
A short series breakdown; more on the Delta frequency inverters page:
| Series | For what | What stands out | Example model |
|---|---|---|---|
| VFD-E | General-purpose machines, conveyors, small pumps and fans | Scalar and simple vector control, compact, built-in PLC functions, a very popular workhorse series | VFD007E43T, 0.75 kW, 380 V |
| VFD-EL / VFD-EL-W | Simple drives: pumps, fans, conveyors; EL-W in a moisture-resistant build | Delta's budget base series, compact, minimal setup for typical jobs | VFD007EL43A, 0.75 kW, 380 V |
| MS300 | Modern universal replacement for VFD-E: machine building, ventilation, pumps | New platform, better vector control, built-in STO safety function, compact housing | VFD9A0MS43AFSAA, ~4 kW, 380 V |
| CP2000 / CFP2000 | Pumps, fans, HVAC, water supply | Process series: built-in PID, sleep mode, pump-cascade control, energy-saving profiles for centrifugal load | VFD007CP43A-21, 0.75 kW, 380 V |
| C2000 / C200 | Heavy machinery, cranes, extruders, winding, where overload capacity and accurate torque matter | Full vector control with encoder, high overload capacity, braking module, synchronous-motor operation | VFD007C43A, 0.75 kW, 380 V |
| VFD-ED | Lifts and hoists | Dedicated lift series: cabin-tuned accel/decel profiles, brake control, ride smoothness | VFD110ED43S, 11 kW, 380 V |
Before we recommend a model we ask: motor power, load character (constant torque or quadratic on a pump/fan), supply phases (1 or 3), whether there is an encoder on the motor and whether STO is needed in the safety circuit. Related material: frequency inverter setup, frequency inverter repair, choosing a frequency inverter for a borehole pump.
Delta ASDA servo drives: when servo, when a vector-controlled inverter
If you just need to spin a mechanism at stable torque and regulate speed, a vector-controlled frequency inverter is enough (the same C2000 or MS300). A servo is needed where there is precise positioning, high dynamics (frequent accel/decel), axis synchronisation or following a defined motion profile with small error. Then look at Delta ASDA servo drives:
ASDA-A2 — the high-performance general-purpose series: stiff control loop, full mode set (position, speed, torque), electronic gearing, built-in motion functions; goes into machine tools, cutting and packaging machines, winders, manipulators. ASDA-B2 — the basic one: the same "servo as intended" but cheaper and simpler, for less demanding axes. ASD-M — a multi-axis drive: up to three axes in one housing, handy for compact machines with several coordinated motions. Before we recommend one we clarify: load torque and inertia, motion cycle, required accuracy, feedback type, how the servo interfaces with the controller (pulse/analog or fieldbus).
Delta PLC and HMI: which controller and which panel, when
Our logic for choosing a Delta controller is this. A small-to-medium machine with a fixed I/O set — a compact DVP-line PLC (ES2/EX2, SS2, SA2, SX2 and relatives): cheap, quick to commission, programmed in ISPSoft. A more complex installation, more channels needed, axis motion, Ethernet communication — a modular AS-series PLC (AS200/AS300/AS500). All Delta controllers are in the Delta Electronics PLCs section.
Ecosystem pairing: a Delta PLC drives a VFD inverter and an ASDA servo over Modbus RTU or Ethernet/IP, and a DOP panel reads tags from the PLC directly. This is the standard scenario, Delta's environment has ready-made libraries for it, and when all three elements are Delta, integration takes less time than assembling a zoo of mixed brands. We pick the operator panel by diagonal and visualisation volume: a 3-5-inch DOP-B is enough for a local terminal, while a full machine screen takes a larger diagonal from the DOP-A/DOP-B families.
Field notes: where Delta really fits, and where you overpay
From our experience Delta Electronics is predictable upper-mid-class equipment. The VFD-E and VFD-EL inverters have been in our turnover for years, failures at the level expected for the segment, the documentation is detailed, firmware and service are available. What feels different from budget drives: a tidier thermal regime, proper capacitors, predictable behaviour at the limits. The standard operating rules do not go away — keep the drive in a ventilated cabinet, do not block the heatsink, fit a braking resistor for frequent braking, add a choke on a long motor cable. Under normal conditions Delta is very reliable.
Delta fits where you need a price/quality balance without surprises — pumps and HVAC (CP2000), conveyors and machine tools (VFD-E, MS300, DVP/AS PLCs), lifts (VFD-ED), machines with precise motion (ASDA servos); where you build a single drive+PLC+HMI ecosystem from one manufacturer; where the team already knows ISPSoft and ASDA-Soft. You overpay in two cases: when a heavy C2000 is bought for a simple pump where a CP2000 or even a VFD-EL would do — those are different classes and prices; and conversely, when the spec hard-requires a European brand and the review will not pass Delta — then it is not a hardware-vs-hardware question but a specification one, look at Schneider Electric. And if the brand is not critical and you need it even cheaper for the same job, INVT GD20 or Veichi AC10 will cover it on a smaller budget — we say so honestly.
What to check before buying Delta Electronics in Ukraine
The checklist we run with the customer:
1. The right group and series for the job. First — which direction: an inverter, a servo, a PLC or a panel. Then — the specific series. For a drive: VFD-EL/VFD-E (simple), MS300 (modern universal), CP2000 (pumps/HVAC), C2000 (heavy/winding), VFD-ED (lifts). For a servo: ASDA-A2 or ASDA-B2 or ASD-M. For a PLC: compact DVP or modular AS.
2. Overload class for the inverter. Heavy Duty (constant torque: conveyors, cranes, winding) or Normal Duty (quadratic load: pumps, fans). On heavy series this affects frame sizing — do not mix them up.
3. PLC, drive and HMI compatibility. Which protocol (Modbus RTU, Ethernet/IP, CANopen), which firmware version, whether ready libraries exist for the link. All-Delta is easier, but check anyway.
4. Braking resistor or module. For dynamic applications (cranes, centrifuges, winding, frequent braking) this is a separate BR-series item — easy to forget in the spec.
5. Service and spares. 24-month warranty; check repair lead times for your series and spare-part availability with the manager — for the fast-movers VFD-E, VFD-EL, DVP PLCs they are available quickly, for rare items lead times are longer.
6. Stock availability. Fast-movers — VFD-E and VFD-EL inverters at 0.4-7.5 kW, MS300, DVP PLCs, ASDA-A2 servos in common frame sizes — are mostly in stock. Heavy C2000, high-power CP2000, rare AS modules and ASD-M are usually to order, allow 3-10 days.
7. Documentation. Before mounting, pull the manual for your exact series version from deltaww.com: between sub-versions (for example, different C2000 revisions) Delta sometimes changes parameters and the terminal block.
Not sure which line fits your installation — message the manager with the motor power, the load type and what exactly you need (drive only; drive plus PLC plus panel; servo for precise motion; lift drive). We will point to a specific Delta series and tell you what is in stock.
