VFD Overview
The US Filtermaxx variable-speed centrifuge uses a Variable Frequency Drive (VFD) to control rotor speed continuously from approximately 2,000 G to 10,000 G via a front-panel potentiometer.
Factory Parameter Settings
| Parameter | Value | Function |
|---|---|---|
| P001 | 1 | External control (potentiometer) |
| P002 | 1 | Frequency reference = potentiometer |
| P003 | 84.5 Hz | Base frequency |
| P004 | 50/60 Hz | Input power frequency |
| P005 | 84.5 Hz | Maximum output frequency |
| P014 | 20 sec | Acceleration ramp time |
| P026 | 1 | Stop mode = coast to stop |
| P142 | 4.5 A | Maximum current per phase |
Programming Procedure
- Press PROG — enters programming mode, opens parameter list
- Press ▲ / ▼ — navigate to the desired parameter number
- Press SET — displays current value of selected parameter
- Press ▲ / ▼ — adjust to new desired value
- Press SET — saves the new value
- Press PROG — exits programming mode, returns to run mode
Note: A wiring diagram and default function table are included with the physical unit. Contact US Filtermaxx for replacement documentation.