Parabola® Light Simplex VFD Control Panels - Constant Pressure Applications
Parabola® Light VFD Panels are advanced pre-engineered simplex control panels with a user-friendly HMI control keypad. The control panels are designed to control three phase pumps in constant pressure or pressure boosting applications.
Single Phase Input, Three Phase Output 208/240VAC
| Model | Input Line Voltage | Three Phase Motor HP |
| PLS1P1 | Simplex Single Phase 208/240VAC | 1.5 |
| PLS1P3 | Simplex Single Phase 208/240VAC | 3 |
| PLS1P5 | Simplex Single Phase 208/240VAC | 5 |
Three Phase Input, Three Phase Output 208/240/480VAC
| Model | Input Line Voltage | Three Phase Motor HP |
| PLS3P5 | Simplex Three Phase 208/240VAC | 5 |
| PLS32P7 | Simplex Three Phase 208/240VAC | 7.5 |
| PLS32P10 | Simplex Three Phase 208/240VAC | 10 |
| PLS32P15 | Simplex Three Phase 208/240VAC | 15 |
| PLS32P20 | Simplex Three Phase 208/240VAC | 20 |
| PLS34P7 | Simplex Three Phase 480VAC | 7.5 |
| PLS34P10 | Simplex Three Phase 480VAC | 10 |
| PLS34P15 | Simplex Three Phase 480VAC | 15 |
| PLS34P20 | Simplex Three Phase 480VAC | 20 |
Features
- Variable frequency drive operation with configurable parameter settings via HMI
- Single phase or three phase voltage supply, controls three phase 208/240/480VAC pump
- Drive protection: VFD offers output phase loss, input phase loss, IGBT overheating, overspeed, oversupply, and overcurrent
- NEMA type 1 enclosure: Heavy duty polycarbonate with stainless steel lockable latches
- Stainless steel pressure transducer 0-300 PSI, 1/4” NP, 4-20mA output included
- Fan and thermostat included on 7.5 to 20 HP models
- UL 508A listed
- Two-year limited warranty
Program/HMI
- Constant pressure operation with optional adjustable PID settings and high/low pressure alarms
- Multiple access levels for added security
- HMI touchscreen display features: Hand-Off-Auto (H.O.A.) switch, pump run indicator, pump fault indicators, pump and pressure status screens
Applications
- Commercial Pressure Booster Systems
- Booster Pumps
- Deep Well Submersible Pumps
- Irrigation Pumps
Custom Options
- LAD/LAW = Lightning Secondary Surge Arrestor (LAD Delta / LAW Wye)
- SS4 = Upgraded Enclosure (304 Stainless Steel)
- SS6 = Upgraded Enclosure (316 Stainless Steel)
Overview
The HMI’s main menu displays live pump data and H.O.A. switch. This menu is the user’s command center.
PSI Overview
Check the current PSI. Adjust the PSI set point to optimize efficiency.
Speed Parameters
Adjust the minimum and maximum frequency, acceleration, deceleration, and the Hand frequency of the VFD.
Motor Parameters
Adjust the current, speed, frequency, and other parameters of the motor.
PID Parameters
Adjust the PID parameters, including: proportional, integral, derivative, low speed, timeout, and deadband.