GE B30 Instruction Manual page 527
Bus differential system
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Also See for B30:
- Instruction manual (626 pages) ,
- Communications manual (532 pages) ,
- Technical reference manual (252 pages)
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CHAPTER 7: COMMANDS AND TARGETS
port, and that the field unit settings are correct. An indication of communications loss means that no messages are
being received. Check that the patching is correct, and that the Brick has power. If that is not the problem, use a
professional optical fiber connector cleaning kit to clean both sides of all optical fiber connections from the Process
Card through to the affected Brick. If the problem continues after cleaning, consult the factory.
BRICK TROUBLE
•
Description of problem: Brick internal self-testing has detected trouble internal to the Brick.
•
Severity: This self-test error does not directly inhibit protection. However, some or all of the affected Brick inputs/
outputs may not be available to the UR device.
•
What to do: Check the Brick environment for over/under temperatures and the voltage of its power source. If the
ambient temperature and supply voltage are within Brick specifications, consult the factory. Troubles resulting from a
Brick output failing to respond to an output command can only be detected while the command is active, and so in
this case the target is latched. A latched target can be unlatched by pressing the front panel reset key if the command
has ended, however the output can still be non-functional.
B30 BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL
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