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Rules for Failsafe Operation of an S5-95F
Checking Observance of the Conditions of the Prototype Test
This step is intended to make sure that all conditions of the prototype test and all rules for failsafe
operation detailed in the Product Manual have been observed.
This includes, for instance, checking to make sure that the quiescent current principle has been
observed for all external safety circuits connected to the system. Other tests include the power
supply, the electrical wiring and the memory used in failsafe mode.
Within this framework, a check should also be made to make sure that ambient conditions
mentioned in the technical specifictions have been observed.
Documentation
Documentation should include the current user program as listing as well as on floppy disk or
EPROM. The EPROM labels should include the following information:
•
Installation
•
Date
•
Signature of the EPROM submodules
Warning
!
Once the acceptance test has been completed and approval granted, every change to
the hardware or software must be discussed with the inspector. Changes made on one's
own initiative can result in critical system states.
18-6
S5-95F
EWA 4NEB 812 6210-02
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