ABB DSPC406 | Processor Board for Advant OCS

Description

The ABB DSPC406 is identified as a processor board associated with the ABB Advant OCS and MasterPiece control-system family. It is listed under product ID 57310001-EU and is intended for identification within legacy industrial control hardware configurations. The processor-board designation distinguishes it from field I/O modules and passive connection or termination units.

For replacement selection, the full product identification is important. Confirm the product ID printed on the installed board, the controller model, and the associated hardware configuration before selecting a replacement. The DSPC406 designation alone does not establish compatibility with every Advant OCS or MasterPiece controller configuration.

Key Technical Specifications

Detailed Product Overview

Product identification and function

The ABB DSPC406 is identified as a processor board for industrial control-system hardware. Within a controller architecture, a processor board provides the processing resources used by the control system, distinguishing it from modules dedicated to field-signal acquisition, signal conditioning, or communication termination.

The DSPC406 designation is associated with the Advant OCS and MasterPiece product context. When identifying this board for maintenance or procurement, the complete product ID is an important reference because a model designation by itself may not capture every hardware variation.

Controller compatibility

Compatibility should be assessed against the installed controller rather than assumed from the ABB brand or product-family name alone. Before selecting a replacement, compare the existing board’s product identification and hardware arrangement with the controller’s technical documentation.

This is particularly important when maintaining an established control system in which processor hardware is integrated with other boards and system-specific configuration. A matching model designation does not independently establish that firmware, memory, or other hardware requirements are satisfied.

ABB Advant OCS Product Guide

ABB Advant OCS Product Guide

Governor control

Droop control

The generator is running in manual control, the adjustment of speed/frequency/power is operated from the central point of control by using the speed up/down keys. In the event of engine/generator failure, governor failure, breaker opened, local control or by command from the “Auto Sequencer” function, the control mode will automatically change to the droop control mode. Depending on the reason for switching to the droop control mode, audible alarms will be created. The actual MW value is transferred to the MW setpoint; this will give a bumpless switch over to another control mode.

MW control

The operator is able to give a MW setpoint to the generator, and the regulator will keep the generator at this value. After a new value is set, the setpoint will change slowly to the new value. If the generator can not follow the changes, an audible alarm is created.

The setpoint will be set back to the actual value of the generator and start again changing the setpoint slowly to the new value.

The reason for not reaching the setpoint can be that the regulator is out of range, not having enough steam or fuel, or a generator is not connected to another generator on the grid, etc.

MW demand control

The MW demand control mode can only selected if the generator is already in MW control mode. The MW setpoint is now issued by the “Active Power Control” function, see also chapter 5. Before using this setpoint, the value must be valid.

An audible alarm is created and the generator will return into the MW control mode if:

• the MW setpoint value is not valid within 10 minutes
• communication loss with the “Active Power Control” function, the mode will also be switched back to the MW Mode

The output setpoint into the MW demand control mode acts the same as in MW control mode.