Grizzly
New Member
Bonjour,
I do not know if this is a good idea, instead of the shunt connected between Amps pins 24 and 25 of the EMS DB37 connector, I would like to use a main 60A thermal breaker (in C position of the schematic on page 7-62 of the Skyview System Installation Guide V15.0). This one has a slope of 1.6 mV / A which must be corrected in the file of definition of the sensors.
If the circuit-breaker is opened, the voltage between the Amps + and Amps- pins could reach 15V (12 V installation circuit).
Would the EMS inputs support these voltages?
Indeed the pull-up resistances of the Amps inputs will have to dissipate a power that I can not estimate without having knowledge of the electrical circuit.
What is the risk of re-supplying the circuit through these inputs with and without back-up battery ?
Note that the question also arises when opening the standard shunt.
Another questions:
Can I use 0.1 A Resettable PTC (like Littelfuse RXEF005) instead of the 1A fuse to protect the inputs Amps + & -?
Is there a bidirectional TVS (transient voltage suppression) component between the pins Amp + & - ?
If none, can we put a "PI" configuration consisting of 2 PTC and a bidirectionnal TVS?
I do not know if this is a good idea, instead of the shunt connected between Amps pins 24 and 25 of the EMS DB37 connector, I would like to use a main 60A thermal breaker (in C position of the schematic on page 7-62 of the Skyview System Installation Guide V15.0). This one has a slope of 1.6 mV / A which must be corrected in the file of definition of the sensors.
If the circuit-breaker is opened, the voltage between the Amps + and Amps- pins could reach 15V (12 V installation circuit).
Would the EMS inputs support these voltages?
Indeed the pull-up resistances of the Amps inputs will have to dissipate a power that I can not estimate without having knowledge of the electrical circuit.
What is the risk of re-supplying the circuit through these inputs with and without back-up battery ?
Note that the question also arises when opening the standard shunt.
Another questions:
Can I use 0.1 A Resettable PTC (like Littelfuse RXEF005) instead of the 1A fuse to protect the inputs Amps + & -?
Is there a bidirectional TVS (transient voltage suppression) component between the pins Amp + & - ?
If none, can we put a "PI" configuration consisting of 2 PTC and a bidirectionnal TVS?