SJE-Rhombus
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SJE-Rhombus Engineered Controls - Controllers

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VFDC-4100 Controller

1 - 4 Pump Control Applications

The VFDC-4100 Controller maintains a constant discharge pressure by adjusting the speed of 1 to 4 VFDs in pressure booster pump systems.

The VFDC-4100 microprocessor based controller is specifically designed for constant pressure applications using variable frequency drives (VFDs).  The VFDC-4100 is capable of controlling up to four VFDs and features P.I.D. control, automatic alternation, data logging and communication capabilities.  The backlit graphic display allows the operator to monitor pressure, pump speeds and alarm status at a glance.  The menu driven setup makes navigation and configuration fast and simple.

The VFDC-4100 can be configured for simplex, duplex, triplex and quadplex pump control using a single variable frequency drive per pump.  SJE-Rhombus is a UL certified panel shop that can customize the VFDC-4100 controller in a control panel to suit specific requirements. 

 

VFDC-4100 Controller

VFDC-4100 Controller

Features:

  • 1 - 4 VFD control
  • PID control
  • Graphic screen display with Lback light
  • System status display:
    • Operating pressure
    • Set pressure
    • Auto/off
    • Time and date
    • Alarm with time and date
  • Pump status display
    • Pumps in use
    • Lead pump
    • Pump run/stop
    • Pump speed
    • VFD fault
  • Four (4) arrow buttons for easy navigation and setup
  • Automatic alternation (cycle-based or timed-based)
  • 13 programmable digital outputs
  • Scheduled pressure setup function
  • Jockey pump operation
  • Pressure transmitter setup
  • Password protection
  • RS232 Modbus Serial communication
  • Low pressure alarm
  • High pressure alarm
  • Low suction pressure/low level with programmable restart

 

 

VFDC-4100 Controller

Specifications:

INPUT TYPE:
4-20 mA signal

INPUT RESOLUTION:
0.1% resolution

DIGITAL INPUTS:
Six (6) input channels

RELAY OUTPUTS:
Eleven (11) relay outputs, each capable of switching 5A at 250V

ANALOG OUTPUT:
Four (4) optically isolated analog outputs to control the speed of each VF
D

POWER:
24 VDC

LCD TOUCH SCREEN DISPLAY:
240 x 64 dots resolution

WARRANTY:
One-year limited warranty


 

Available Downloads

Adobe Acrobat is a free download to view .pdfs

Visit our downloads section of this website for additional literature.

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