ABB DCV 700 thyristor panels

ABB DCV 700 thyristor panels

DESCRIPTION

DCV 700 converters are fully digital and mounted in an enclosure complete with all necessary equipment, meeting the most stringent safety standards. The converter can be used for standard applications but has the flexibility to be customized for the most demanding applications.

Comprehensive Product Range

DCV 700 converters are available as 6-/ and 12- pulse 2- or 4-quadrant, in a current range 22 to 5150/10300 A and supply voltages of 200 to 1000 VAC. A selection of options is available to provide the user with a system meeting the most demanding technical requirements and performance expectations. Common control electronics throughout the range reduces spare parts inventory and training requirements.

Wide Variety of Industrial Applications

The DCV 700 series can handle the most demanding applications in: 

• rolling mills 

• pulp and paper 

• metals (casters, processing lines etc.) 

• material handling (cranes, hoists etc.)

Digital Control

To meet the most stringent control requirements, the DCV 700 features speed control, which reduces the effects from gear backlash and torsional vibration arising in mechanical systems. High-performance speed and torque control will fulfill all requirements for rapid response and control accuracy. Autotuning for armature current control will simplify the commissioning procedure.

Diagnostics

Digital control allows comprehensive diagnostics, including for example detection of 

• overcurrent 

• overvoltage 

• earth faults Troubleshooting is easily undertaken via the Control Panel and the Commissioning and Maintenance Tools.

Commonality with AC Drives – Flexible System Configurations

Some of the most important features and benefits common to both the DC and AC drives are: 

• application control system (APC) – fewer spare parts 

• link to automation systems 

• commissioning, maintenance and programming tools – less training 

• control panel – quick information 

• drive-MNS cabinets – standardization benefits; possibility to build mixed systems 

• EMC design available

Converter software for application, drive, and torque control

Drive Control receives either speed or torque reference and gives a torque reference to the Torque Control. Torque Control is controlling the armature current, the field current and the EMF. It receives the torque reference from the Drive Control or from the Application Controller (APC). Auto/manual tuning for armature current simplifies the commissioning and makes the tuning procedure flexible.

Several Solutions

• Ratings from 6 to 450 A 

• Integrated, separate or external 

• 2-phase or 3-phase versions 

• Digital control 

• Auto/manual tuning

The I/O connections in the Drive Controller DDC are used for safety and other drive specific functions like emergency stop and motor temperature measurement:

• 3 digital inputs 

• 4 digital outputs 

• 5 analogue inputs 

• 2 analogue outputs 

• 1 pulse encoder input 

• 1 emergency stop input 

• 1 emergency stop output 

• 1 current source 

• 1 voltage reference output 

• 1 actual armature current output