Traditional pulse controllers mainly control pulse solenoid valves. In contrast, this PLC Touchscreen Differential Pressure Controller can simultaneously control pulse solenoid valves, pneumatic hammers, pneumatic cylinders, and multiple other actuators, creating a centralized control center for the dust collection system.

The controller can also receive various operating signals through analog and digital inputs, bringing differential pressure, dust concentration, temperature, airflow, hopper level, ash discharge valve status, and equipment running/stop status into one control system for centralized monitoring, logic processing, and management.

In this way, the controller is no longer simply a “pulse valve controller,” but becomes a central node connecting sensors, control signals, and actuators. It enables centralized monitoring, logic control, and coordinated operation of dust collection equipment, while also connecting to higher-level control systems through RS485 communication.

Yes. The controller supports both Downtime Cleaning and Combined Cleaning, and additional functions can be customized according to the requirements of different dust collection systems.

Downtime Cleaning means that after the dust collector fan stops, the controller continues the pulse cleaning process for a preset period according to the programmed sequence.
For applications with high dust loading or regular shutdown and maintenance cycles, downtime cleaning can supplement normal operating cleaning by removing residual dust from the filter media after production ends or the equipment stops. This helps keep the filters in a better condition before the next startup. The downtime cleaning cycle can be configured according to the production cycle and equipment operating logic.

Combined Cleaning combines differential pressure cleaning and timer-based cleaning. During normal operation, the controller continuously monitors filter differential pressure and starts pulse cleaning when the preset pressure level is reached. At the same time, the system can execute pulse cleaning according to preset time parameters, providing greater flexibility for different operating conditions.
This type of combined control is also used in industrial dust collection controllers to combine cleaning during operation with additional cleaning after shutdown.

The controller supports multiple sensors with 4–20 mA analog signal outputs. Depending on the system configuration, sensors can be used to monitor parameters such as differential pressure, compressed air pressure, dust concentration, temperature, airflow, and other operating conditions.

There is no single fixed number of pulse solenoid valves. The capacity mainly depends on the controller model and the number of output channels.

We provide multiple configurations, including 4, 8, 12, 20, and 30 channels, with up to 96 output channels available for selected configurations. Each output channel can independently control one pulse solenoid valve, with configurations supporting two solenoid valves per channel where applicable.

The appropriate controller should be selected according to the overall dust collector configuration, including the number of filter cartridges or bags and the total number of pulse solenoid valves.

Yes. The company logo, company name, and equipment image displayed on the touchscreen interface can be customized to match the branding requirements of dust collector manufacturers and equipment integrators.

The interface can also support multiple languages, including Chinese, English, Spanish, and Portuguese.

Pulse Width: The duration of the driving voltage supplied to the solenoid pulse valve, i.e. how long the solenoid valve opens to blow compressed air. Too short → insufficient cleaning force; too long → waste of compressed air and accelerated diaphragm wear. Normally set at tens of milliseconds.

Pulse Interval: The time interval between successive firing of two adjacent pulse valves. It prevents simultaneous blowing which would cause sudden air pressure drop and ensures stable blowing force for each valve.

Cycle Interval: The idle waiting time after all pulse valves complete one full blowing cycle before starting the next cycle. This parameter mainly controls the cleaning frequency under timing mode.

Lift-Pulse Interval: The delay time between the signal to the lift valve and the activation of the pulse valve. Used for off-line cleaning; it reserves time to isolate the compartment first before blowing, preventing re-entrainment of dust and guaranteeing cleaning performance.

Compartment Interval: The waiting time between cleaning operations of different compartments in off-line cleaning mode. It allows dust in one compartment to settle fully before switching to the next compartment and avoids airflow interference between compartments.

Off-line Cleaning: Isolated compartment cleaning mode. When cleaning, the lift valve of the target compartment closes first to separate this compartment from the main airflow, then pulse blowing starts. The lift valve reopens after dust settlement. Suitable for high-concentration and sticky dust conditions for thorough cleaning.

Number of Pulse Valves: Total quantity of solenoid pulse valves connected to the controller. The controller outputs blowing signals sequentially according to this setting.

RS485 Interface: This data interface adopts Modbus-RTU protocol, baud rate 9600, no parity check. It supports communication with HMI, PLC, host computer and IoT modules for remote differential pressure reading, parameter adjustment and status monitoring.

Manual Cleaning: Local one-key trigger for a single blow or a full cleaning cycle. Used during commissioning, maintenance and on-site testing to check whether pulse valves and air circuits work properly without waiting for automatic trigger.

Power-off Memory: All parameters are saved when power cuts off. No need to reset parameters after restart; the controller resumes operation with previous settings once power is restored.

Differential Pressure Range: Measuring range of differential pressure: 1–10 kPa. Equivalent units: 10–100 mbar, 1000–10000 Pa, approx. 4–40 inH₂O.

Differential Pressure Switch Interface (Dry Contact, Run Signal): The blowing cycle starts automatically when the run signal is connected and stops once the signal disappears. Commonly interlocked with the main dust collector fan: cleaning is only permitted when the fan runs and stops together with the fan to avoid secondary dust re-entrainment.

High Differential Pressure (High Pressure Alarm): An alarm is triggered when the differential pressure exceeds this set value. It indicates the filter media is heavily clogged with dust and the resistance is excessive, which may lead to insufficient air flow and system overload, prompting maintenance inspection.

Upper Differential Pressure Limit (Cleaning Start Threshold): When the measured differential pressure rises above this value, the controller automatically starts a cleaning cycle. This is the trigger point for differential-pressure-based cleaning mode.

Lower Differential Pressure Limit (Cleaning Stop Threshold): After a complete blowing cycle, if the differential pressure drops below this value, cleaning will stop and no further cycles will run until the differential pressure rises again. This achieves on-demand cleaning.

Low Differential Pressure Alarm: An alarm activates when the measured differential pressure falls below the preset minimum value. It usually indicates two common faults: perforated/broken filter bags, or disconnected/leaking pressure sampling tubes and air leakage inside the dust collector.

Fan Interlock（Start cleaning after fan shutdown）：The fan interlock function receives the stop signal of the main exhaust fan. After the main fan stops running, the controller triggers the blowing cleaning with a delay. It takes advantage of the static airflow condition for full dust settlement and reduces re-adhesion of dust onto filter media. Widely used for off-line cleaning applications.

Hybrid Cleaning（differential-pressure priority with timed backup）：The system performs on-demand cleaning automatically based on filter differential pressure first. If the differential pressure never reaches the trigger threshold for a long time, the controller will force a cleaning cycle once the backup timer expires, to prevent dust caking and solidification. It balances energy saving and equipment protection.

Intelligent Monitoring：This function supports connection with 4-20mA analog sensors to collect real-time data including temperature, airflow velocity, dust concentration and rotary ash valve operation status inside the dust collector.

Centralized Intelligent Control：It can synchronously control actuators such as air hammers and air cylinders to coordinate all matching components of the dust collector. Suitable for complex processes like off-line cleaning and rapping-assisted ash discharge, it simplifies the wiring of the whole dust removal system.