Scenario 2 - Repeated Power Failure After Completion Of Scenario 1 - Siemens SITOP PSU8600 Manual

1 Task
Scenario 2 – repeated power failure after completion of scenario 1
1.2.2
After the first power failure the IPC was shutdown correctly and the input voltage is
available again on the SITOP PSU8600. The output is provided with voltage again
and the panel PC starts the startup t
has to be configured in the hardware configuration of the SITOP PSU8600, since
the IPC requires a voltage pulse to start the start-up process). After a while t
the input voltage is available again, the buffer module is being charged (t
Shortly after that there a power failure/breakdown occurs again.
Figure 1-4
Input voltage
U
in
Buffer capacity
Panel PC
Ramp up/shut
down
Operating state
Panel PC
Start/Stop
After finishing the startup of the IPC and the software controller, the software con-
troller detects the insufficient buffer capacity and starts the shutdown process.
In order to ensure a correct start up (t
this case to provide for sufficient buffer capacity. Capacity increase can be realized
via expansion with an additional buffer module.
Note For a correct start up and shutdown of the IPC make sure that the buffer mod-
ules are sufficiently charged.
Shutdown IPCs in the SITOP PSU8600 Buffer Mode
Entry ID: 109737962, V1.2,
t t
break delay
t
load
10/2017
(a brief voltage interruption on output t
on
t t
on shutdown
t t
buffer shutdown,r
) and shutdown (t
on shutdown
delay
break
).
load
t
t
delay
) it is important in
7