pecanflyboy
Well Known Member
G3X non-touch
GSU 73
G3x Installation Manual Rev. AM, Page 26-71
DISCRETE IN* 1 J731 Pin 9
I'm configuring a DISCRETE IN* 1 to give me a notification when the smoke pump is turned on (similar to an electric boost pump). I've taken the GSU 73 J731 Pin 9 to the side of the relay that is energized with 12Vdc when the pump switch is turned on. I've configured the DISCRETE IN* 1 to Active High.
DISCRETE IN* 1 always shows active and the message is displayed, regardless of power to the pin. I’ve pulled the circuit breaker and checked that no power is going to Pin 9, and it still shows Active. In fact, Pin 9 is being powered with 12Vdc from the GSU 73. This is problematic as it would be putting 12Vdc to the pump with the switch off.
As I read the installation manual closer, the asterisk on page 26-71 says, *Indicates Active Low. This asterisk carries over the interconnect drawings. Does this mean that the DISCRETE IN’s are only usable in Active Low configuration? It seems counter to the explanation on page 26-71 on parameters for Active High.
Does the GSU 73 allow ACTIVE LOW and ACTIVE HIGH for the DISCRETES? If so, why is my ACTIVE HIGH DISCRETE IN *1 always active?
GSU 73
G3x Installation Manual Rev. AM, Page 26-71
DISCRETE IN* 1 J731 Pin 9
I'm configuring a DISCRETE IN* 1 to give me a notification when the smoke pump is turned on (similar to an electric boost pump). I've taken the GSU 73 J731 Pin 9 to the side of the relay that is energized with 12Vdc when the pump switch is turned on. I've configured the DISCRETE IN* 1 to Active High.
DISCRETE IN* 1 always shows active and the message is displayed, regardless of power to the pin. I’ve pulled the circuit breaker and checked that no power is going to Pin 9, and it still shows Active. In fact, Pin 9 is being powered with 12Vdc from the GSU 73. This is problematic as it would be putting 12Vdc to the pump with the switch off.
As I read the installation manual closer, the asterisk on page 26-71 says, *Indicates Active Low. This asterisk carries over the interconnect drawings. Does this mean that the DISCRETE IN’s are only usable in Active Low configuration? It seems counter to the explanation on page 26-71 on parameters for Active High.
Does the GSU 73 allow ACTIVE LOW and ACTIVE HIGH for the DISCRETES? If so, why is my ACTIVE HIGH DISCRETE IN *1 always active?
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