Operating Instructions ACTIVE06/07 109
06/07 Operating Instructions ACTIVE 109
12 Error and warning behavior
Operation of the frequency inverter and the connected load are monitored continu-
ously. The monitoring functions are to be parameterized with the corresponding limit
values specific to the application. If the limits were set below the switch-off limit of
the frequency inverter, a fault switch-off can be prevented by suitable measures if a
warning message is issued.
The warning message is displayed by the LED's of the frequency inverter and can be
read out on the control unit via the parameter
Warnings 269 or output via one of the
digital control outputs.
12.1 Overload Ixt
The admissible load behavior depends on various technical data of the frequency in-
verters and the ambient conditions.
The selected
Switching Frequency 400 defines the nominal current and the available
overload for one second and sixty seconds, respectively. The
Warning Limit Short-
Term Ixt
405 and Warning Limit Long-Term Ixt 406 are to be parameterized accord-
ingly.
Parameter Settings
No. Description Min. Max. Fact. sett.
405 Warning Limit Short Term Ixt 6 % 100 % 80 %
406 Warning Limit Long Term Ixt 6 % 100 % 80 %
12.2 Temperature
The ambient conditions and the power dissipation at the current operating point result
in the frequency inverter heating up. In order to avoid a fault switch-off of the fre-
quency inverter, the
Warning Limit Heat Sink Temperature 407 for the heat sink
temperature limit and the
Warning Limit Inside Temperature 408 as an internal tem-
perature limit are to be parameterized. The temperature value at which a warning
message is output is calculated from the type-dependent temperature limit minus the
adjusted warning limit.
The switch-off limits of the frequency inverter are an internal temperature of 65 °C
and a heat sink temperature range of 80°C up to 90°C.
Parameter Settings
No. Description Min. Max. Fact. sett.
407 Warning Limit Heat Sink Temp. -25 °C 0 °C -5 °C
408 Warning Limit Inside Temp. -25 °C 0 °C -5 °C
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