Duwan Environmental NS-5AComprehensiveThe protective device is mainly used for real-time monitoring and alarm display of潜水泵 performance, such as winding overheating, oil chamber leakage, wiring box immersion, bearing overheating, motor immersion, and motor overload; in addition, it also features an automatic moisture-removal function inside the motor cavity.KZ-5ASubmersible pump leaks, overheating, and comprehensive protector all feature modular design and manufacturing, ensuring enhanced stability and reliability. It is a robust guarantee for the normal and safe operation of the submersible pump.
Duwan Environmental NS-5A Submersible Pump Comprehensive Protection Device Function Overview
Submersible Pump Water Ingress Alarm Control: When leakage occurs in the oil chamber of the submersible pump, it poses a threat to the normal operation of the electric pump. Pump signal line31#32#Resistance Less Than30KThis protective device4、5A fault causes the normally closed node to disconnect and cut off the control circuit, forcing the pump to shut down. The oil chamber immersion indicator on the panel flashes as a pre-alarm when slightly immersed, reminding people to troubleshoot the fault until the protective value is reached, but at this point, the normally open and normally closed fault contacts do not activate.8、9Commonly used for fault outputs, such as alarms toPLCPlease wait.
Electrical Pump Motor Winding Overheat Alarm Control: In the event of a fault in the submersible pump motor (overload, phase failure, missing phase), the winding temperature spikes rapidly; when the temperature exceeds135℃ at the pump11#12#Or21#22#Signal wire resistance greater than3KThis protective device has failed to output.4、5Closed node disengaged.8、9The normal open node closes, and the overheating indicator on the panel starts to blink as a warning before reaching the protective value, alerting people to the overheating fault of the motor until the fault is resolved. The fault output does not activate during the warning.
Electrical Pump Motor Insulation, Moisture-Proof Alarm Control: During the actual operation of a submersible pump motor, there is a possibility that it may gradually absorb moisture when stopped, and this moisture absorption will be reflected in the gradual decrease of the motor's insulation resistance, which can ultimately lead to motor damage. To protect the insulation of submersible pump motors and enhance their durability, this protective device detects the electrical pump71#Signal line, when humidity reaches, i.e., the dew point; through15、16Terminal detected shutdown signal, delayed for a period of time, this device11、12The moisture control and heating nodes are continuously connected to power the dehumidification and heating unit. Until the temperature reaches70%The heating will automatically shut off if the motor starts. The control system will immediately cease operation. While heating, the dehumidification indicator light on the panel will continuously blink.
Internal Motor Cavity Submersion Alarm Control: In the event of a water leakage failure within the submersible pump motor cavity, it poses a threat to the motor's safety, prompting the detection pump51#Signal Line Resistance Less Than50KAt this time, the device is malfunctioning and outputting.4、5Closed node open, normally open contact disconnected8、9The leak warning light for the motor cavity on the panel starts flashing as a precaution before reaching the alarm threshold, and continues to do so until the fault is resolved. During the warning, the fault output remains inactive.
Bearing Overheat Alarm Control: In the event of a malfunction in the submersible pump bearing, the temperature spikes, and when the temperature exceeds...105℃ at the time, the pump was detected by our protective device61#Signal line when resistance is greater than1.5KAt the moment, the device is experiencing a fault in its output.4、5Closed node disengaged.8、9The node is kept open continuously, the panel bearing overheating indicator flashes and alarms before reaching the protection value, until the fault is eliminated. During the early warning, the fault output does not activate.
Pump Overload Alarm Control: When the pump motor experiences an overload fault due to overcurrent (overload, phase loss, or phase failure), the thermal relay operates, and this device outputs a fault signal.4、5Closed node disconnected.8、9The node is commonly open, and the overload indicator light on the panel blinks before reaching the protective value until the fault is cleared. During the warning, the fault output does not activate.
Water Ingress Alarm Control Inside Submersible Pump Terminal Box: In the event of a water leakage fault inside the cavity of the motor terminal box of the submersible pump, it poses a threat to the motor's safety, and the pump41#Leakage signal lines less than50KAt this time, the device is experiencing a fault output.4、5Closed node opens, open node closes.8、9The leak indicator light on the panel's junction box begins to flash as a warning before reaching the alarm threshold, continuing until the fault is resolved. During the warning, the fault output does not activate.
Duwan Environmental NS-5A AC220V 5A Comprehensive ProtectorTechnical Specifications
Ambient Temperature:-20℃~70℃
Relative Humidity: ≤90%RHNon-condensating, non-corrosive gas-free environment
Operating Voltage: 220V/50HZ
Controller Power Consumption: ≤AC 4w
Fault Output Capacity:5A/AC220V
Desiccant Dehumidification Output Capacity:5A/AC220V
Controller dimensions:160mm*80mm*90mm
Panel Aperture Dimensions:151mm*76mm
Weight: 0.4 kg
Installation Specifications and Instructions
Controller dimensions:160mm*80mm*90mm
Control cabinet aperture size:151mm*76mm
Controller Installation Method: Panel Card Insertion
Cabling,To prevent signal interference, please use shielded cables for control signal lines as much as possible.
If there is no corresponding signal input for the controller, it will not affect the normal operation of the entire controller; however, the controller will be unable to provide the corresponding protective function.
Please carefully check the wiring of the control cabinet and controller before debugging.,Ensure accuracy and then close the control cabinet power.,Keep the system in operation.
In the event of a pump failure alert during operation, after confirming the fault and resolving it, the reset button must be pressed.1Subsequent delay2SOr, the controller must be re-powered to resume normal operation.
Cardboard Packaging
