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Advant
®
Controller 450 User’s Guide
Chapter 5 Maintenance
5-38
3BSE 002 415R701 Rev A
Advanced Fault Finding
In addition:
•
Advant Station 100 Series Engineering Station or Advant Station 500 Series Engineering
Station (with option On-line Builder).
5.5.6 Safety Regulations
Section 5.1.1, Safety Regulations
are always to be followed when
installing, fault finding and operating an Advant Controller system to minimize the risks of
injury to personnel and damage to the equipment. Local statutory regulations, to the degree that
they are more strict are to take precedence.
In connection to faults, fault finding and user repair there are some specific additional safety
regulations and aspects on safety. Please refer to:
•
Section 5.5.7, On-line/Off-line Aspects
•
Section 5.5.9.3, Safety at Start/Stop
•
Notes in the “Check...” instructions and user repair instructions given.
5.5.7 On-line/Off-line Aspects
In connection to fault finding and user repair a primary decision has to be made whether the
work has to be carried out on-line (if relevant) or off-line or with the mains supply disconnected.
On-line means that all work is carried out while the controller is in full operation.
Off-line here means that the controller is shut down to a safe position, working mode
STOPPED. The mains supply is still switched on.
This is a question of system availability, possibility of fault finding, and safety.
If redundant functions are included then the system availability probably is given precedence.
Most modules located in subracks can be replaced on-line. However not all of them. See
5.5.10.1, Board and Subrack Mounted Unit Exchange
Due to the risk of manual mistake in on-line handling and possible severe consequences to the
process controlled you are recommended to use this facility restrictively.
The most confident way of working is:
•
Stop the system during fault finding
•
Switch off the mains voltage supply during unit replacement and when a new function is
installed.
Disconnection of the mains supply may have impact on dynamic information stored in the
application program. For example counter/register content, integrator content and so on will be
lost if not secured by special considerations in the application program design. However this is
general design considerations. The controller should manage “normal” mains supply
interruptions.
Summary of Contents for Advant Controller 450
Page 1: ...Advant OCS with Master software GYDQW RQWUROOHU User s Guide 3BSE 002 415R701 Rev A ...
Page 26: ...Advant Controller 450 User s Guide Table of Contents 3BSE 002 415R701 Rev A xvi ...
Page 30: ...Advant Controller 450 User s Guide Table of Contents 3BSE 002 415R701 Rev A xx ...
Page 488: ... GYDQW RQWUROOHU 8VHU V XLGH SSHQGL DUGZDUH 0RGXOHV A 48 3BSE 002 415R701 Rev A ...
Page 508: ...Advant Controller 450 User s Guide Appendix D Item Designations D 12 3BSE 002 415R701 Rev A ...
Page 518: ...Advant Controller 450 User s Guide Appendix F Load Calculation F 4 3BSE 002 415R701 Rev A ...
Page 522: ...Advant Controller 450 User s Guide Appendix G Memory Calculation G 4 3BSE 002 415R701 Rev A ...
Page 528: ...Advant Controller 450 User s Guide Appendix H Halt Codes H 6 3BSE 002 415R701 Rev A ...
Page 562: ...Advant Controller 450 User s Guide Index iv 3BSE 002 415R701 Rev A ...
Page 563: ......
Page 564: ...3BSE 002 415R701 Rev A March 2000 ...