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HydroDrive™ Variable Frequency Drive for Metering Pumps

The HydroDrive AC Variable Frequency Drive is a variable speed control in a NEMA-4X / IP-65 washdown, watertight enclosure

The HydroDrive™ AC Variable Frequency Drive is a variable speed control in a NEMA-4X / IP-65 washdown, watertight enclosure. It is designed to operate 208-230 Volt 3-phase AC induction motors through 3.6 Amps RMS. The sine wave coded Pulse Width Modulated (PWM) output operates at a frequency of 16Hz which provides high torque and high efficiency at a low noise level.

Standard Features:

Motor Overload Protection**

200% Starting Torque

Electronic Inrush Current Limit

Short Circuit Protection

Regeneration Protection

Slip Compensation with Boost

Ride Through Power Interruptions

Diagnostic LEDs

100% Holding Torque at 0 RPM

Barrier Terminal Block

NEMA-4X / IP-65 Enclosure

Notes: **UL approved as an electronic overload protector for motors.


Input Voltage (VAC +/- 10%, 50/60Hz)115 or 208/230
Maximum Load (% for 2 Minutes)150
Switching Frequency at Motor (kHz)16
Signal Following Input Voltage (VDC)0 – 5
Signal Following Input Resolution (Bits)8
Maximum Speed Range (% of Base)70 -110
Minimum Speed Range (% of Base)0 – 40
Acceleration Range (Seconds)0.3 – 20
Deceleration Range (Seconds)0.3 – 20
Slip Compensation Range (Volts/Hz/Amp)0 – 3
Current Limit Range (% Range Setting)0 – 200
Boost Range for 50 Hz Output0 – 70
Boost Range for 60 Hz Output0 – 35
Motor Horsepower (HP)1/4, 1/2, 3/4, 1
Output Frequency (Hz)0 – 50, 0 – 60
Frequency Multiplier (1X, 2X)1, 2
Minimum Operating Frequency at Motor (Hz)1
Speed Regulation (% Base Speed @ 30.1)2.5
VFD Speed Range (Ratio)60:1
Operating Temperature Range (C)0 – 45

Trimpot Adjustments

  • Minimum Speed (MIN)
  • Maximum Speed (MAX)
  • Acceleration (ACCEL)
  • Deceleration (DECEL)
  • Slip Compensation (COMP)
  • Current Limit (CL)
  • Boost (BOOST)

Jumper Selectable Features

  • J1/J2 (115V/230V): Selects incoming power voltage.
  • J3 (1/4, 1/2, 3/4, 1): Selects motor horsepower.
  • J4 (Auto/Man): Selects automatic or manual reset mode.
  • J5 (50Hz/60Hz): Selects motor frequency.
  • J6 (1X/2X): Selects motor frequency multiplier.
  • J7 (FIX/ADJ): Selects fixed or adjustable boost.

Optional Accessory

Multi-Speed Board: Provides multi speed operation through a PLC.

Dimensional Drawing