PDM20 Smart Pump Drive

PDM20 Smart Pump Drive

PDM20 series products are all-in-one pump drives, suitable for small single pump constant pressure water supply equipment. it is compact and delicate, with its size only 45% of other series of products in the same specification.If can be installed directly on the pump motor with IP65 dust and water proof protection.Equipped with perfect single pump control function, it is easy to operate with high reliability and good quality.

  • Description
  • Technical Data
  • Selection Guide


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Control characteristic
Control mode V/F control
Start torque 1Hz 100%
Speed regulation range 1:20
speed-holding precision ±1.0%
Overload capability 120% rated current for 60s, 150% rated current for 1s
V/F curve Linear
Acceleration/deceleration curve Linear; time range: 0.1-3600s
Start frequency 1~10Hz
Input voltage Single-phase 220V±15%
Input frequency range 50/60Hz, fluctuation range: ±5%
Output voltage Three-phase 0-rated input voltage
Output frequency 0~50/60Hz
Peripheral interface
Programmable digital input 2 digital input
Programmable analog input AI1:0-10V/4-20mA, selected by function parameters
Analog power +5V-+24V adjustable power, set voltage by function code setting
Basic functions
Command running channel operation panel and digital terminals
Frequency source Digital setting, PID setting
Integrated PID Realize closed loop control system
AVR When grid voltage changes, it keeps output voltage constant automatically. By default, it doesn’t work at deceleration.
Stall control Automatically limit current and voltage at running period to prevent tripping caused by frequent overcurrent/over voltage.
Pump control
LED display, setting Display pressure, voltage, programmable, rapid pressure setting, parameter hidden function
Automatic energy-saving running Decrease output voltage automatically at light load to save energy.
Password setting 4-bit password can be set with non-zero numbers. Exit password setting interface and the password will be valid after 1 minute.
Parameter lock Define whether the parameter is locked in running or stopped state in case of misoperation.
Constant pressure control PID adjustment, PID feedback of break detection, PID sleeping and wakeup
Self-starting at power on Optional self-starting at power on, adjustable starting delay
Anti-freezing Anti-freezing running option: frequency, time, cycle
Water leakage inspection Optimize sleeping control by water leakage inspection
Water supply protection
High pressure alarm Detect feedback pressure to protect pipe network
Low pressure alarm Detect feedback pressure to protect pipe network and pumps
Water shortage protection Multiple detection modes output pressure, frequency, current; auto reset and restart
Application environment
Altitude Lower than 1000m, service in derated capacity above 1000m. Derate 1% capacity every 100m increase in height.
Environmental temperature -10℃~+40℃, service in derated capacity for 40℃~50℃. Derate 4% capacity every 1℃ increase in temperature.C41
Vibration < 9.8m/S2(1.0G)
Storage temperature -40℃~+70℃
Model Voltage class kW HP Rated input current (A) Rated output current (A)
PDM20-2S1R1 Three Phase 380VAC ±15% 1.1 1.5 11 5.5
PDM20-2S1R5 1.5 2 14 7
PDM20-2S2R2 2.2 3 20 10