Description, device design, dimension drawing
2.6 Electronic overload shutdown and reset
Selectivity modules
Manual, 12.2014, C98130-A7579-A1-1-7629
19
Electronic overload shutdown and reset
An overload is permitted for a defined period of time for each selectivity module output. The
output is electronically shut down according to the "Shutdown characteristic" diagram after
the limit value has been exceeded.
Figure 2-8 Shutdown characteristic SITOP select
● An output current is continuously permissible up to the selected current response
threshold (LED of the output is lit green).
● In the range 101...129 % of the selected current response threshold, an overload current
is permissible for 5 seconds; after this time, the output is electronically shut down (LED of
the output is lit red).
● In the range > 130 % of the selected current response threshold, the current is limited to
130 %, after approx. 50 … 100 ms the output is electronically shut down (LED of the
output is lit red).
● When the output current exceeds the selected current response threshold, and if the
supply voltage simultaneously dips below 20 V, then the output is electronically shutdown
(the LED of the output is lit red).
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