ABB IRB 2000 - Page 19

Diagnostics
The control system is provided with its own built-in diagnostics with the following
characteristics:
• Test on start-up:
- computer board;
- programming unit;
- monitor (option);
- voltage supply unit;
- rectifier unit.
- location control of I/O boards and drive units
• During test running, a red LED on the computer board will switch from a
continuous light to a flashing light.
• Successful test running indicated by:
- no red LEDs on all units;
- a green LED lights up on the computer board.
• Unsuccessful test running indicated by:
- a red LED lights up on the faulty board;
- if possible, a fault message appears on the programming unit and on the
monitor (if installed).
• Running of the control system in a special test mode during service, with the
following functions:
- start-up test;
- full test of the I/O boards, jumpers included;
- test running of the drive units at full voltage;
- program for cleaning the floppy disk unit read/write heads.
Description IBB 2000
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