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Functions and Parameters
12.2.12 Converter Overload Pre-Warning
Converter overload pre-warning will be notified if the load for the converter is
too high for a defined time.
Code
Name
Converter overload pre-
C0.29
warning level
Converter overload pre-
C0.30
warning delay
When the frequency converter output current is higher than [C0.29] "Converter
overload pre-warning level" and lasts for longer than [C0.30] "Converter over-
load pre-warning delay", the "Converter overload pre-warning" signal will be ac-
tive on the selected digital output terminal. The signal will be immediately inac-
tive when the output current is lower than [C0.29].
Parameter E2.01, E2.15, H8.20, H8.21, H9.00, H9.01, H9.02, H9.03 can be set to
"11: Converter overload pre-warning" to configure the digital outputs to show
this warning.
Behavior of converter overload pre-warning is shown as the figure below:
Fig. 12-18: Converter overload pre-warning
The actual overload pre-warning level will be reduced by the carrier frequency
output current derating by the equation:
[Actual overload pre-warning level] = [C0.29] x [Derating percentage]
This derating percentage can be found in the hardware specification for each de-
vice.
Bosch Rexroth AG R912005854_Edition 09
Rexroth Frequency Converter EFC x610
Setting range
20.0...200.0
0.0...20.0
Default
Unit
Step
110.0
-
0.1
2.0
s
0.1
Series
Attri.
Stop
Stop
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