Emerson Process Management Rosemount 2410 manual Relay Outputs, Reference Manual

Reference Manual

Rosemount 2410

300530EN, Rev BA September 2012

Relay Outputs

There are two optional relay outputs. You can choose Normally Open (NO) or Normally Closed (NC) by setting a switch as described in “Relay Output Configuration” on page 6-15.

NO and NC refers to the contact position when a relay is deenergized. This is also referred to as the Alarm state. The terminology can be summarized as follows:

Table 3-9. Designation of relay

contact positions	Normally Closed (NC)		Normally Open (NO)
	Deenergized	Energized	Deenergized	Energized
	Closed	Open	Open	Closed
	Not active	Active	Not active	Active
	Alarm (Reset)	Normal	Alarm (Reset)	Normal

NOTE!

Ensure that maximum current through the relays does not exceed the specifications in Appendix A: Reference Data.

See “Relay Output” on page C-6in Appendix C: Advanced Configuration for information on how to configure the relay source signal, set points etc. for the Rosemount 2410 Tank Hub.

3-26 Section 3. Installation