Measure operating demand
Pressure, temperature, current, frequency and machine status are collected from the compressor system.
Variable-frequency drive control for demand-matched compressed air.
A WD200-based drive solution that helps compressors maintain steadier pressure, start smoothly and connect operating data to local or plant-wide control systems.
Closed-loop pressure control
IM and PMSM compatibility
Smooth heavy-duty starting
Plant-ready communications
Make compressor output follow the air demand.
Systems that depend mainly on load/unload cycles or frequent starts and stops can experience pressure fluctuation and unnecessary high-speed operation when plant demand changes.
The drive receives pressure feedback and adjusts motor speed through closed-loop control. Pressure, discharge temperature, motor current, output frequency and equipment status can be brought together for clearer operation and maintenance.
Compare with the setpoint
The built-in PID function or an external controller evaluates pressure feedback against the required supply pressure.
Adjust motor speed
The WD200 changes output frequency so compressor delivery can respond to the current air demand.
Connect operations
HMI, PLC and plant monitoring systems can exchange commands, alarms and operating data through standard or optional interfaces.
One drive platform for new compressors and retrofit projects.
Configure the motor control, feedback, communications and cabinet around the compressor type and site operating requirements.
Pressure control on demand
Built-in PID accepts a pressure setpoint and feedback signal, dynamically adjusting compressor speed to keep supply pressure closer to the required value.
High-performance motor control
V/F, sensorless vector control and feedback vector control support different motor and process needs. In SVC mode, WD200 can provide 150% rated torque at 0.5 Hz.
IM and PMSM compatibility
The same platform supports three-phase induction motors and permanent-magnet synchronous motors, helping standardize both conventional retrofits and high-efficiency compressor systems.
Protection and continuous operation
Motor overload and short-circuit protections are combined with functions such as flying start, power-loss restart options and sudden-load current suppression.
Open system integration
Modbus RTU is standard. Optional PROFIBUS-DP, PROFINET and CANopen modules support integration with pressure and temperature signals, HMI, PLC and supervisory systems.
Flexible installation
A narrow-body design, independent air duct and conformal-coated control board support practical cabinet layouts. Mounting options vary by power rating.
From a single machine to a connected compressor station.
The system can be scaled from a basic drive and pressure sensor to closed-loop HMI control or multi-compressor coordination through a PLC and industrial network.
- Basic drive: WD200, pressure sensor and motor
- Closed-loop control: pressure and temperature signals, PID and HMI
- Station coordination: multiple compressors, PLC and industrial communications
- Project-specific integration: separate main motor and cooling-fan control
Steadier pressure, smoother starts and more visible maintenance.
Match real air demand
Adjust speed according to plant consumption and reduce unnecessary high-speed operation.
Improve starting behavior
Variable-frequency starting limits current and mechanical shock during acceleration.
Stabilize supply pressure
Closed-loop speed control reduces fluctuations associated with frequent loading, unloading or starts.
Support faster service
Status, alarm and operating data help teams locate abnormal conditions and plan maintenance.
WD200 configuration range for compressor applications.
Final selection must be checked against compressor type, motor data, load curve, supply pressure, ambient conditions, altitude and control architecture.
Voltage and powerThree-phase 380–480 V; 0.75–710 kW
Compatible motorsInduction motor (IM) and permanent-magnet synchronous motor (PMSM)
Control modesV/F, SVC, FVC and separated voltage/frequency control
Output frequency0–599 Hz
Overload capabilityG type: 150% rated current for 60 s; P type: 120% for 60 s
CommunicationsModbus RTU standard; PROFIBUS-DP, PROFINET and CANopen optional
Protection and temperatureIP20; −10 °C to +50 °C, derating required above 40 °C
Build the compressor drive around your air-demand profile.
Share the compressor type, motor rating, supply pressure, demand curve and control requirements. Our team can help define the drive, feedback, cabinet and communications architecture.