This document covers hardware troubleshooting for an Extended Automation System 800xA. It discusses LED indications, hardware error indications, CPU memory issues, and power supply/grounding problems. Specific topics covered include LEDs for PM8xx modules, S800 I/O modules, errors shown in the controller system status viewer, alarm lists, an I/O fault diagnostic flowchart, checking CPU memory usage and availability, power supply layout, and proper earthing techniques. The document provides guidance on troubleshooting hardware issues at various levels of the automation system.

1. ©ABBUniversity-1
RevisionA
E x t e n d e d A u t o m a t i o n S y s t e m 8 0 0 x A
Chapter 2
Hardware
Troubleshooting
Course T302

2. ©ABBUniversity-2
RevisionA
 LED Indications
 Hardware Error Indications
 CPU Memory
 Power Supply and Grounding
Hardware Troubleshooting
Hardware
Troubleshooting

3. ©ABBUniversity-3
RevisionA
PM8xx LED Indications
LED
Indications

4. ©ABBUniversity-4
RevisionA
S800 I/O Indication
LED
Indications
AI 810 AO 810

5. ©ABBUniversity-5
RevisionA
S800L I/O Indication
LED
Indications

6. ©ABBUniversity-6
RevisionA
 LED Indications
 Hardware Error Indications
 CPU Memory
 Power Supply and Grounding
Hardware Troubleshooting
Hardware
Troubleshooting

7. ©ABBUniversity-7
RevisionA
CBM Fault and Warning Indications
Hardware Error
Indications
Error
Warning

8. ©ABBUniversity-8
RevisionA
Controller System Status Viewer
Hardware Error
Indications

9. ©ABBUniversity-9
RevisionA
Hardware Status
Hardware Error
Indications

10. ©ABBUniversity-10
RevisionA
Alarm List
Hardware Error
Indications

11. ©ABBUniversity-11
RevisionA
IO Fault Diagnostic Flow Chart
How many units display error icons?
Check error message
in Unit Status tab Check the Lock switch on the MTU
Check the type and position of
the IO module in the CB Project
Explorer
Check the module
bus connections
What IOs are not working?
Lock the MTU Check the Error message in
the unit status tab
Connect Module bus
Check the Module bus fuse
Check the type and position of
the IO module compared to the
CB project explorer
Replace IO Module
More than one
One
Wrong IO Module
IO Module
missing
Unlocked Locked
Module bus connected Module bus
disconnected
Analogue IOs
Go to A
A
Analogue and
digital IOs
Wrong IO Module
“IO Channel error” or “IO
module missing”
Hardware Error
Indications

12. ©ABBUniversity-12
RevisionA
 LED Indications
 Hardware Error Indications
 CPU Memory
 Power Supply and Grounding
Hardware Troubleshooting
Hardware
Troubleshooting

13. ©ABBUniversity-13
RevisionA
Memory Usage
CPU
Memory

14. ©ABBUniversity-14
RevisionA
Available Memory
CPU
Memory

15. ©ABBUniversity-15
RevisionA
System Diagnostics
CPU
Memory

16. ©ABBUniversity-16
RevisionA
 LED Indications
 Hardware Error Indications
 CPU Memory
 Power Supply and Grounding
Hardware Troubleshooting
Hardware
Troubleshooting

17. ©ABBUniversity-17
RevisionA
PSU Layout
Power Supply
Grounding

18. ©ABBUniversity-18
RevisionA
Earthing
Din Rail
Equipment
Earth
Safety Earth
To plant earth
Power Supply
Grounding

19. ©ABBUniversity-19
RevisionA