DWT WACS PWM 203 - User Manual

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MĚNIČE

PWM

Samostatné 201

202

203

Descrizione

Description

Popis

La famiglia PWM stand-alone è la nuova frontiera degli inverter

WaCS. Sono destinati ad applicazioni professionali

complesse.

La serie 203 può pilotare pompe fino a 2,2 kW. Uniscono la sem-

plicità della serie PWM con la robustezza e la potenza

dell’inverter. Sono dispositivi da quadro e vanno corredati di

sensori di pres- sione e di flusso. Quest’ultimo garantisce una

migliore regolazione della pressione. Con questi modelli è inoltre

possibile assemblare gruppi di pressurizzazione con semplici cavi

di rete.

La famiglia Stand Alone unisce comfort e risparmio, integra tutte

le protezioni, è di facile installazione e configurazione.

The PWM stand-alone is the leading edge of the Wacs inver-ters.

The 3 models of this family are ideal for professional and very

severe applications. Series 203 can drive pumps of up to 2.2 kW.

These units combine the simplicity of the PWM series with the

robust design and power of an inverter drive. They can be

installed in a control panel and must be supplied with external

pressure and flow sensors. The use of a flow sensor, moreover,

allows a better pressure regulation. The PWM stand-alone can

easily be set up in booster sets, thanks to a standard wire cable

connection. Comfort, energy saving, protections and simplicity

are the keywords of this professional series.

Samostatné měniče řady PWM jsou špičkovými měniči značky

Wacs. Tři modely této rodiny jsou ideální pro profesionální a

náročné pouţití. Série 203 dokáţe pohánět čerpadla do 2,2 kW.

Tyto jednotky kombinují jednoduchost řady PWM s robustním

designem a výkonem pohonu měniče. Lze je nainstalovat do

řídícího panelu a musí být opatřeny externími tlakovými a

průtokovými čidly. Pouţití průtokového čidla mimo to umoţňuje

lepší regulaci tlaku. Samostatné měniče řady PWM mohou být

jednoduše spojeny do soupravy díky standardnímu propojení

ocelovým kabelem. Pohodlí, úspora energie, ochrana a

jednoduchost jsou klíčovými slovy této profesionální řady.

Need help?

Do you have a question about the DWT WACS PWM 203 and is the answer not in the manual?

The WACS PWM (Pulse Width Modulation) inverter is a sophisticated device designed for the control of electric pumps in various applications, offering significant energy savings and enhanced system management. This manual describes the PWM 201, 202, and 203 models, which are suitable for a range of professional and severe applications.

Function Description

The PWM inverter functions by controlling the speed of an electric pump, thereby regulating the flow and pressure within a hydraulic system. Instead of operating the pump at a constant, maximum speed, the PWM adjusts the motor's frequency and voltage based on demand, leading to substantial energy savings. The device is designed to be robust and easy to install, featuring a metallic enclosure for durability. It can be installed in a control panel or mounted directly on the pump.

Key functionalities include:

Pressure and Flow Control: The PWM maintains a constant pressure or flow setpoint by continuously adjusting the pump's speed.
Multi-pump Management: The inverter can manage multiple pumps in a system, operating them in sequence to meet demand efficiently.
Protection Features: It incorporates various protections for the pump and the system, such as against dry run, overcurrent, overvoltage, undervoltage, and short circuits.
User Interface: A graphic OLED display provides real-time information and allows for easy configuration of parameters.

Important Technical Specifications

The PWM series offers models with different power ratings and input/output configurations:

PWM 201:

Max Motor Power: 1 kW (single-phase)
Input Power Supply: 1x230V 50-60Hz
Output Power Supply: 3-phase 1x230V
Dimensions: 173 x 280 x 180 mm

PWM 202:

Max Motor Power: 1.5 kW (single-phase)
Input Power Supply: 1x230V 50-60Hz
Output Power Supply: 3-phase 1x230V
Dimensions: 173 x 280 x 180 mm

PWM 203:

Max Motor Power: 2.2 kW (single-phase)
Input Power Supply: 1x230V 50-60Hz
Output Power Supply: 3-phase 1x230V
Dimensions: 173 x 280 x 180 mm

Common Specifications:

Frequency Range: 50-200 Hz
Control Range: 1-24 bar (pressure), 1-24 m3/h (flow)
Protection Rating: IP20
Display: Graphic OLED
Sensors: Compatible with pressure and flow sensors (optional)
Communication: Modbus RTU (via RS485)

Usage Features

The PWM inverter is designed for ease of use and flexibility in various hydraulic systems.

Installation:

Panel Mounting: Can be installed inside an electrical panel.
Pump Mounting: Can be directly mounted on the pump motor, offering a compact solution.
Wiring: Simple electrical connections for power supply, motor, and sensors. The manual provides detailed diagrams for single-phase and three-phase connections.

Configuration:

Quick Start Guide: A simplified procedure for initial setup, allowing users to quickly configure basic parameters like pressure setpoint, motor direction, and current limits.
Advanced Parameters: A comprehensive menu allows for fine-tuning of various operational parameters, including minimum/maximum frequencies, acceleration/deceleration ramps, and multi-pump settings.
Sensor Integration: Supports both pressure and flow sensors, enabling precise control based on real-time system conditions.
Multi-pump Operation: When used in multi-pump systems, the PWM acts as a master, controlling other inverters (slaves) to optimize energy consumption and maintain stable pressure/flow.

Energy Saving Features:

Adaptive Control: The inverter continuously adjusts pump speed to match demand, avoiding unnecessary energy consumption.
Sleep Mode: The pump can enter a low-frequency sleep mode when demand is low, further reducing energy usage.
Energy Consumption Monitoring: The device can display real-time energy consumption, allowing users to track savings.

Safety and Protection:

Dry Run Protection: Automatically shuts down the pump if water supply is interrupted, preventing damage.
Overcurrent/Overvoltage Protection: Safeguards the motor and inverter from electrical anomalies.
Short Circuit Protection: Prevents damage in case of electrical faults.
Thermal Protection: Monitors the motor and inverter temperature to prevent overheating.

Maintenance Features

The PWM inverter is designed for minimal maintenance, with features that facilitate troubleshooting and ensure long-term reliability.

Diagnostics:

Error Codes: The OLED display shows specific error codes for easy identification of faults, such as "BL" for block due to lack of water, "HP" for high internal power supply voltage, and "SC" for short circuit.
Fault History: The device stores a history of faults, which can be accessed for diagnostic purposes.
Reset Options: Automatic and manual reset options are available for various faults, allowing the system to resume operation once the issue is resolved.

Troubleshooting:

Visual Indicators: The display provides clear messages and icons to guide users through troubleshooting steps.
Parameter Monitoring: Users can monitor various operational parameters in real-time, aiding in the diagnosis of system issues.
Technical Support: The manual provides detailed information for common issues and recommends contacting technical support for complex problems.

Preventive Measures:

Regular Checks: Periodic checks of electrical connections and sensor functionality are recommended to ensure optimal performance.
Cleanliness: Keeping the device and its surroundings clean helps prevent dust accumulation, which can affect cooling and performance.

The WACS PWM inverter is a reliable and efficient solution for managing electric pumps, offering advanced control, significant energy savings, and robust protection features for a wide range of applications.

DWT WACS PWM 203 Specifications

General

Brand	DWT
Model	WACS PWM 203
Category	Inverter
Language	English

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