ESUC base is an option available for the celpac® 2G range.
This optional module is pluggable directly on SU / SUL / SUM Solid State Contactor and permanently measures the load current.
This is possible to make a diagnostic up to 5 heating elements in parallel.
The current value is compared to a reference value which has been stored during initialisation by means of the “Teach “ push button or “external Teach” input.
1-TEST MODE : Allows to test the system SSR and load by forcing of the SSR input control (Press for max. 2 sec)
2-TEACH MODE : Allows to measure and record the preset load current “Iteach” (Press for more than 3 sec). Teach mode must done at steady state. The quick Led flashing indicates that recording is complete and you can release.
If the current varies outside the reference value, the module detects a fault (partial load fault or overload).
At the same time, the module monitors a network failure (no current with control) or a thyristor fault (current without control).
Possible detections :
-Partial load break
-Overload (partial load short-circuit)
In case of a failure, the output status indicates a problem after a small delay (100ms max).
Different configurations and status are visualised by 3 LEDs.
We are offering 3 different versions :
For more information about its installation and uses, please watch our new tutorial video :