Functions
8.16 Automatic restart
Control Units CU240S
Operating Instructions, 11/2006, A5E00766042B AA
8-93
8.16 Automatic restart
Data
P1210 Parameter range:
P1211
Warnings: A0571
Faults: F0035
Function chart number: -
Description
After a power failure (F0003 "Undervoltage"), the "Automatic restart" function, enabled using
P1210, will on next power up automatically acknowledge any faults and start the inverter
again.
The automatic restart function will only take place if a RUN command was present prior to
the power failure. For automatic restart to be performed a RUN command must be present
on power up and must also have been present prior to power failure.
When it comes to power failures (line supply failure), then a differentiation is made between
the following conditions:
Line undervoltage (brownout)
"Line undervoltage" is a situation where the line supply is interrupted and returns before (if
installed) the OP display has gone dark (this is an extremely short line supply interruption
where the DC link hasn't completely collapsed).
Line failure (blackout)
"Line failure" is a situation where the display on the OP has gone dark (this represents a
longer line supply interruption where the DC link has completely collapsed) before the line
supply returns.
The automatic restart function P1210 is shown in the table below as a function of external
states/events.