WEG CTW-04 AC/DC converter User´s Guide

Below you will find brief information for AC/DC converter CTW-04 CTW-04. The CTW-04 series is intended for driving of DC-motors with independent excitation by changing and controlling the speed in 1 or 4 quadrants according to the torque x speed curve. The main characteristics of this drive are: it operates at any sequence of the supply phase (RST - RTS), it operates at 50/60 Hz three-phase lines, HMI (Human-Machine-Interface), it indicates the four last faults, isolated digital inputs (bi-directional current), isolated digital outputs, differential analog inputs from - (0 to 10)V or from (4 to 20)mA - 10 and 12 bits, analog outputs – 8 and 12 bits, digital relay outputs, field current control – Ic, speed feedback by: back-EMF, DC-tachogenerator or incremental encoder, feedback inputs by DC-tachogenerator for tachogenerator voltages from 9 to 350Vdc, 24Vdc isolated sources available for the user (DI’s and DO’s), power supply from 0 to 10V available for the user (Al’s), field weakening – +EC, field supply up to 440V, fieldbus communication networks (Profibus-DP and DeviceNet), RS-232 serial communication.

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AC/DC converter CTW-04 CTW-04 User's Guide | Manualzz

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Key features

  • Three-phase supply
  • HMI (Human-Machine-Interface)
  • Isolated digital inputs & outputs
  • Analog inputs & outputs
  • Speed feedback by: back-EMF, DC-tachogenerator, incremental encoder
  • Field current control
  • Fieldbus communication networks
  • RS-232 serial communication

Frequently asked questions

The version of the Software can be read at Parameter P023.

The CTW-04 series is intended for driving of DC-motors with independent excitation by changing and controlling the speed in 1 or 4 quadrants according to the torque x speed curve. It operates at any sequence of the supply phase (RST - RTS), it operates at 50/60 Hz three-phase lines, HMI (Human-Machine-Interface), it indicates the four last faults, isolated digital inputs (bi-directional current), isolated digital outputs, differential analog inputs from - (0 to 10)V or from (4 to 20)mA - 10 and 12 bits, analog outputs – 8 and 12 bits, digital relay outputs, field current control – Ic, speed feedback by: back-EMF, DC-tachogenerator or incremental encoder, feedback inputs by DC-tachogenerator for tachogenerator voltages from 9 to 350Vdc, 24Vdc isolated sources available for the user (DI’s and DO’s), power supply from 0 to 10V available for the user (Al’s), field weakening – +EC, field supply up to 440V, fieldbus communication networks (Profibus-DP and DeviceNet), RS-232 serial communication.

The 1 quadrant or 4 quadrants CTW-04 converter is determined by the intelligent product code: 1 quadrant – Unidirectional. Ex: CTWU4XXXXTXXXXXZ 4 quadrants –Antiparallel. Ex: CTWA4XXXXTXXXXXZ
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