Positive-displacement pump controller CSS-003

remotewith alarm functionfor pump management

Overview
The Peristaltic Pump Precision Fluid Control System (Model CSS-003) is a stepper-motor-based drive platform developed to minimize flow pulsation and deliver repeatable volumetric dosing in peristaltic pump applications. The unit combines up to 32× microstepping with sinusoidal current shaping, resonance-avoidance firmware, and multi-interface control to achieve ±1% steady-state flow accuracy across a 1–300 RPM range. Designed for OEM integration in medical, laboratory, food & beverage and industrial metering equipment.

Key Highlights

• 32× microstepping with sinusoidal current shaping — flow ripple < 3% of rated torque
• Resonance-avoidance speed table — automatic skip of mid-band resonance zones (typically 100–200 RPM)
• ±1% steady-state flow accuracy (±0.5% with closed-loop encoder)
• Multiple control interfaces: RS-485 Modbus RTU, analog 0–10 V (or 4–20 mA), pulse/direction
• Optional closed-loop encoder — roller slip and stall detection without external sensor
• Configurable acceleration ramps (S-curve or trapezoidal) to reduce liquid hammer and tubing fatigue

Summary
Drive Type: Stepper Motor (NEMA 17 / NEMA 23)
Microstep Resolution: Up to 32× (sinusoidal current shaping)
Flow Accuracy: ±1% of set point (steady-state)
Speed Range: 1 - 300 RPM
Control Interface: RS-485 / Analog 0–10V / Pulse
Supported Pump Heads: 3-roller, 6-roller, 8-roller

Drive & Motor — Full Specifications
Motor Type — 2-phase hybrid stepper (NEMA 17 / NEMA 23 / NEMA 24)
Microstepping Resolution — 1 / 2 / 4 / 8 / 16 / 32× selectable
Current Shaping — Sinusoidal (FOC-style) for smooth torque delivery
Peak Drive Current — Up to 4.0 A/phase (model-dependent)
Supply Voltage — 24–48 V DC
Encoder Option — Incremental ABZ 1000 ppr — closed-loop stall detection

Flow Control Performance
Operating Speed Range — 1–300 RPM
Steady-State Flow Accuracy — ±1% of set point (±0.5% with closed-loop encoder)
Flow Ripple (pulsation) — < 3% of rated torque at 32× microstepping
Resonance Avoidance — Firmware speed-skip table; configurable forbidden zones
Acceleration Profile — S-curve or trapezoidal; configurable ramp time 0.1–10 s
Roller Count Compensation — Configurable for 2-, 3-, or 4-roller pump heads

Command Interface
RS-485 Modbus RTU — speed setpoint, start/stop, fault readback; up to 32 nodes per bus
Analog Input — 0–10 V or 4–20 mA → speed command (12-bit resolution)
Pulse / Direction — 5 V / 24 V differential or single-ended; up to 200 kHz
Digital I/O — 4 DI (enable, direction, fault-clear, speed-preset) + 2 DO (ready, fault)
USB / UART — parameter configuration and firmware update via PC tool

Application Domains
Medical Infusion Equipment — syringe and IV infusion systems requiring high repeatability (±0.5% available with encoder)
Laboratory Reagent Dispensing — automated dispensers requiring low-speed precision (1–10 RPM)
Food & Beverage Dosing — sauce, syrup and viscous dosing; FDA-compatible tubing and washdown options available
Industrial Chemical Metering — acid/alkali dosing, water treatment; corrosion-resistant pump head options
Pharmaceutical Manufacturing — buffer preparation and media transfer; 21 CFR Part 11 audit-log option on request
OEM Machine Builder — drop-in drive module to replace DC brush motors without pump-head redesign

Customization & OEM Notes
Solution Type — representative application scenario; NEOTON can customize drive parameters, pump head compensation and tubing compatibility to project requirements
Typical Lead Time — project-dependent
Minimum Order — no minimum: single-unit prototypes to volume production
Documentation — system manual, Modbus register map, wiring diagram and PC configuration tool provided
OEM Experience — 30+ years manufacturing; 1800+ OEM clients worldwide

caractéristiques / spécifications techniques

• Model: CSS-003
• Drive Type: Stepper Motor (supports NEMA 17 / NEMA 23 / NEMA 24)
• Motor Type: 2-phase hybrid stepper
• Microstepping: 1 / 2 / 4 / 8 / 16 / 32× selectable
• Current Shaping: Sinusoidal (FOC-style)
• Peak Drive Current: Up to 4.0 A/phase (model-dependent)
• Supply Voltage: 24–48 V DC
• Encoder Option: Incremental ABZ 1000 ppr (closed-loop stall detection)
• Operating Speed Range: 1 - 300 RPM
• Steady-State Flow Accuracy: ±1% (±0.5% with closed-loop encoder)
• Flow Ripple: < 3% of rated torque at 32× microstepping
• Acceleration Profile: S-curve or trapezoidal; 0.1–10 s ramp
• Control Interfaces: RS-485 Modbus RTU, Analog 0–10V (or 4–20 mA), Pulse/Direction, USB/UART
• Digital I/O: 4 DI + 2 DO
• Supported Pump Heads: 3-roller, 6-roller, 8-roller (configurable compensation)
• Application Domains: Medical, Laboratory, Food & Beverage, Industrial Chemical Metering, Pharmaceutical, OEM