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Operating Instructions ACU
205
If the output current has already been reduced due to the fact that the long-term overload has been
used up, the short-term overload is no longer available even if it has not been used up beforehand.
The defined overload reserve (Ixt) of the frequency inverter is available again after 10 minutes of
operation at reduced power.
Output signals
Reaching of a limit – selected
in Operation Mode
573
– can be signaled via digital outputs.
15 - Warning current limitation
The intelligent current limits limit the output current.
16 - Controller current limit. long
term Ixt
The overload reserve for 60 s has been used up and the
output current is being limited.
17 - Controller current limit.
short term Ixt
The overload reserve for 1 s has been used up and the output
current is being limited.
18 - Controller current limit Tk
Max. heat sink temperature T
K
reached. Intelligent current
limits are active.
19 - Controller current limit.
motor temp.
Max. heat sink temperature T
PTC
reached. Intelligent current
limits are active.
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