Process Bus Modules - GE C30 Instruction Manual
Controller system
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Also See for C30:
- Instruction manual (480 pages) ,
- Communications manual (532 pages) ,
- Communications manual (526 pages)
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Table 3-2: Power supply LED on front panel
LED indication
Continuous on
On/off cycling
Off
3
3.3.4 Process bus modules
The C30 can be ordered with a process bus interface module. The module interfaces with the HardFiber Process Bus
System, or HardFiber Brick, allowing bidirectional IEC 61850 fiber optic communications with up to eight HardFiber Bricks.
The HardFiber system integrates seamlessly with the existing UR-series applications, including protection functions,
FlexLogic, metering, and communications.
This process bus system offers the following benefits:
•
Reduces labor associated with design, installation, and testing of protection and control applications using the UR by
reducing the number of individual copper terminations
•
Integrates seamlessly with existing UR applications, since the IEC 61850 process bus interface module replaces the
traditional CT/VT modules
•
Communicates using open standard IEC 61850 messaging
For details on the HardFiber system, see its Instruction Manual.
3.3.5 Contact inputs and outputs
Nearly all contact input/output modules have 24 terminal connections. The connections are arranged typically as three
terminals per row, with eight rows in total. A given row of three terminals can be used for the outputs of one relay. For
example, for form-C relay outputs, the terminals connect to the normally open (NO), normally closed (NC), and common
contacts of the relay. For a form-A output, there are options of using current or voltage detection for feature supervision,
depending on the module ordered. The terminal configuration for contact inputs is different for the two applications.
The contact inputs are grouped with a common return. The input/output modules have three versions of grouping: four
inputs per common return, five inputs per common return on a high-density module, and two inputs per common return.
When a contact input/output module is ordered, four inputs per common is used. If the inputs must be isolated per row,
then two inputs per common return are selected (4D module).
3-14
Power supply
OK
Failure
Failure or no power
Figure 3-13: Control power connection
CHAPTER 3: INSTALLATION
C30 CONTROLLER SYSTEM – INSTRUCTION MANUAL
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