VFD & Controllers

We provide variable speed controlled pumping solutions

V.F.D. XQ-Drive

Motor Power 0.75~22kW(1~30HP)
Input Power 3PH 380~440V
Output Power 3PH 380~440V
IP Class IP55
Ambient Temperature -10~40℃
External Comm. RS-485, Internet

Description

XQ-DRIVES are pump specific variable frequency drive that manages pump performance to match a wide range of system conditions and requirements.

Adjusting the pump speed is the most efficient means of controlling pump flow and reducing the energy consumption As the drives are self-cooling and motor independent structure, it can be mounted directly on the motor or on the wall.

XQ DRIVES are equipped with the latest GUI 3.5″ color LCD display. A noise filtering EMC filter and DC reactor is also installed within the XQ DRIVES.

Application

Pressure boosting systems, In-line circulation pump systems, For all pump systems require the pressure/differential pressure control

Feature

  • 3.5” LCD Display (Graphical User Interface)
  • Energy Savings up to 70%
  • Multi-pump control capacity of up to 6 pumps
  • Hydraulic control functions included
  • Electrical and hydraulic pump protections
  • Automatic recovery after power failure
  • Easy retrofitting on existing pump system
  • Flexible installation either directly on a standard I.E.C. motors or on walls
  • EMC filter and DC reactor built-in -Reduce noise and harmonic distortion

V.F.D. NSQ-Drive

Motor Power 0.75~22kW (1~30HP)
Available Power 1PH 200~230V(1~3HP), 3PH 380~440V(1~30HP)
IP Class IP55
Ambient Temperature -10~+40℃
External Comm. RS-485, Internet

Description

NSQ-DRIVES are pump specific variable frequency drive that manages pump performance to match a wide range of system conditions and requirements.

Adjusting the pump speed is the most efficient means of controlling pump flow and reducing the energy consumption As the drives are self-cooling and motor-independent structure, it can be mounted directly on the motor or on the wall.

Application

Pressure boosting systems, In-line circulation pump systems, For all pump systems require the pressure/differential pressure control

feature

  • Energy Savings up to 70%
  • Multi-pump control capacity of up to 6 pumps
  • Hydraulic control functions included
  • Electrical and hydraulic pump protections
  • Automatic recovery after power failure
  • Easy retrofitting on existing pump system
  • Flexible installation either directly on a standard I.E.C. motors or on walls

V.F.D. SQ-DRIVE

Motor Power 0.55kW ~ 1.1kW (0.75HP~1.5HP)
Input Power 1PH 220V
Output Power 3PH 220V
Main Frequency 50/60Hz
IP Class IP55
Ambient Temperature -10~+40℃

Description

SQ-DRIVE is a single phrase variable frequency drive that manages pump performance to match a wide range of system conditions and requirements.

Adjusting the pump speed is the most efficient means of controlling the pump flow and reducing the energy consumption SQ-Drive is a motor-independent structure, it can be mounted directly on the motor or on the wall.

Application

Pressure boosting systems

Feature

  • Stand alone inverter for a single pump
  • Hydraulic control functions included
  • Electrical and hydraulic pump protections
  • Hydraulic control functions included
  • Easy retrofitting on existing pump systems
  • Flexible installations(motor, wall)
  • Small compact design and space saving
  • FND display for easy status monitoring and programing

Multi-inverter MQ-Drive

Motor Power 0.75-22kW (1HP~30HP)
Input Power 3 x 220V/380V/440V
Main Frequency 50/60Hz
External Comm. RS485, Internet

Description

The MQ-DRIVE is a Fully integrated multi-pump specific controller which includes 2 to 6 frequency inverters(one per pump) mounted in one compact unit.

Specially designed for booster systems, the MQ-DRIVE can link together up to six pumps and automatically control the speed of the individuals pumps to adjust the system performance to variations in water demand.

Each frequency inverter mounted inside MQ-DRIVE can be a “Master inverter” and it is possible to run all pumps in multi-controller mode and allows each pump of the system to become a lead pump.

If one master inverter fails, either another one is used to take the full responsibility and a steady control of the system.

Application

Pressure boosting system, Water Supply system, Irrigation system, Water treatment system, Industrial plants

Feature

  • Automatic adjustment of the pump performance to varying demands
  • Constant discharge pressure
  • Multi-pump capability up to 6 pumps
  • All hydraulic control function included
  • Electrical and hydraulic pump protections
  • LCD display for system information
  • Longer maintenance intervals because of less stress to the pump and the motor
  • Small compact design and space saving

Booster Controller OPC

Input Power 1PH 200~240V
Main Frequency 50~60Hz
Ambient Temperature -10℃~40℃
External Comm. RS-485, Internet

Description

One pump controller OPC-1000 and OPC-1001 are applicable for any general inverter, and this product enables the latest pump control function of pump inverter.

Since this product is applicable for any general inverter, it can be utilized without limitation of pump power. Also, this product is easy to set-up the pressure and provides various pump protection functions.

Application

For all pump systems require the inverter control

Features

  • Control for Static pressure and Differential pressure (2 pressure sensor wiring available)
  • Pump control with General inverter available (No limitation for inverter capacity)
  • Interactive control available up to 6 pumps (Maximization of system stability)
  • Pump protection function available (High pressure, Low pressure, and Pressure sensor error)
  • Control parameter set-up via Keypad (For the case of OPC-1000, optional item)
  • Log indication for Pump/Inverter operation (Key pad type only)

Booster Controller 747D Controller

Motor Power 0.75kW ~ 75kW
Input Power 3 x 220V/380V/440V
Main Frequency 50/60Hz
External Comm. RS485, Internet

Description

The 747D-Controller is a multi-pump controller designed to control and monitor up to six identical pumps connected in parallel for pressure boosting systems.

The 747D-Controller consists of a frequency inverter, a PID-controller and all necessary components such as main switch, contactors in one compact cabinet.

The primary role of the 747D-Controller is to control the number of pumps in operation, as well as the speed of the individual pumps, in order to adjust the performance of the system to variations in demand.

Various features of 747D-Controller such as automatic cascade control, forced pump changeover and dry-running protection help to increase the system reliability, energy efficiency and decrease downtime and cost-consuming maintenance.

Application

Pressure boosting systems, Water supply systems, Irrigation systems, Water treatment systems, Fire fighting systems, Industrial plants

Features

  • Automatic adjustment of the pump performance to varying demands
  • Constant discharge pressure
  • Multi-pump capability up to 6 pumps
  • Single frequency inverter available
  • Electrical and hydraulic pump protections
  • LCD display for system information
  • Small compact design

162 LS-ro, Gunpo-si, Gyeonggi-do, Korea
T +82-31-831-1243 | F +82-31-831-1250 | E-mail obd@doochpump.com

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