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Frequently Asked Questions

Power Controller Topic: Detecting Disconnection for Multiple Heaters

 

FAQ No. FAQ01969

 

Question

What are the conditions for detecting disconnection for G3PX-2[][]EHN-CT Power Controllers that detect disconnection for multiple heaters?
 


Answer

The disconnection detection conditions are listed below.

1. The load current must be 1 A min.

2. The CT detection current must be 30% or higher of the rated maximum load current.

Note: Increase the number of CT turns if the CT detection current is 30% or less.

3. Up to five heaters can be connected (20% multiple heater disconnection detection characteristics)

 

Circuit Diagram

Care must be taken because the following phases are not detected by heater disconnection detection.
 

Undetectable phases


 

Other Power Controller FAQs

 Why is the same power supply used for both the circuit and the load?

 Is it possible to use a three-phase power supply for single-phase G3PX Units?

 Why does the constant-current model sometimes have all indicators ON?