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S800 I/O will start under four different conditions.
1.
Without configuration and without communication with the controller. Start the
first time or after a long power off.
2.
Without configuration but with communication with the controller. Start the
first time or after a long power off.
3.
With configuration but without communication with the controller. Start after a
short power off.
4.
With configuration and with communication with the controller. Start after a
short power off.
Below follows a description how to start and how S800 behaves during start-up
under different conditions.
1.
Check that the circuit breakers on the power switch units are switched off.
2.
Switch on the mains power, and check for correct mains voltage with a
multimeter.
3.
Switch on the circuit breaker on the power switch unit(s).
Without configuration and without communications with the controller:
See timing diagram
Figure 2-1
.
,QGLFDWLRQVRQ)&,
F (fault)
“on” at power up and “off” after self-test ok
R (run)
“off”
P (pow ok)
“on” if power supply ok
T1
“off”
T2
“off”
PR
“on” (only primary FCI in a redundant configuration)
DU
“off” (both FCI in a redundant configuration).
Содержание S800 I/O
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