Emerson MAN -0016-00, UVC120 manual Relay Outputs, Current Outputs

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OUTPUTS

Relay Outputs:

The Instant, Area and Fault relays have SPDT contacts rated 5 Amps at 30 Volts DC or 250 Volts AC.

The Instant and Area alarm relays are programmable for either normally energized or normally de-energized operation and for latching or non-latching (programmable as a group not individually). The fault relay is only normally energized. The relays can be configured with jumpers for normally open or normally closed contacts.

RECOMMENDATION

The fault relay output should not be used to activate an automatic shutdown procedure. The fault output indicates a potential problem with the controller, not an alarm condition.

Refer to Table 1 for a summary of the relay programming options.

 

Selectable Normally

Selectable Normally

Selectable

OUTPUT

Open/Closed

Energized/De-Energized

Latching/Non-Latching

AREA1

Y

Y

Y

INSTANT

Y

Y

Y

FAULT

Y

N2

N 3

Table 1 - Selectable Output Options

1

2

3

Area alarms are programmed together, not individually. Fault relay is normally energized.

Fault relay is non-latching.

Current Outputs:

4-20 mA DC current outputs transmit system information to other devices. The current outputs can be wired for isolated or non-isolated operation by changing the jumpers as shown in Figure 4. Refer to Unit IV, System Operation for a description of the current output signal levels.

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Contents Ultraviolet Fire Detection System Page Page Page Table of Contents Unit V Maintenance Unit I General Information Detector Specifications Dimensions Basic Operation Controller Controller Faceplate Description Current Outputs OutputsRelay Outputs Programming Options External ResetAutomatic Diagnostics and Fault Identification Petroleum Products Handling Unit II UV Fire DetectionDetector System ApplicationOther Processes Detector Sensitivity Spectral Sensitivity RangeGaseous Fuel Handling System Sensitivity Cone of VisionController Wiring Unit III System InstallationInstallation General Wiring Requirements Page W iring for U1F-UV with Non-Isolated Current Output W iring for U1F-UV with Isolated Current Output W iring for U2F-UV with Non-Isolated Output W iring Diagram for U2F-UV with Isolated Current Output W iring for U4F-UV with Non-Isolated Current Output W iring for U4F-UV with Isolated Current Output Mounting the Detector DIP Switch SettingsPosition and Density of Detectors U2F and U4F Controller Sensitivity AdjustmentChannel Selection U1F, U2F and U4FExample Relay Outputs LATCHING/NON-LATCHINGRelay Outputs ENERGIZED/DE-ENERGIZED Page Relay Settings Time Delay for Area AlarmsUnit IV System Operation Startup ProcedureCheckout Procedure Manual Check Procedure Normal Operation Fire Response Alternate Test ProcedureCurrent Output Situation Main Menu Special Function Menu Error Check Mode Err ChcCurrent Calibration Mode CuC Device Repair and Return Unit V MaintenanceRoutine Maintenance TroubleshootingPage Appendices B lis h ed in Accordance with E1A Standard Appendix B Procedure For Activating Reed Switches Appendix C Record Of Dip Switch Settings Appendix D Common Ultra-Violet Absorbing Gases AWG #20 AWG #18 AWG #16 AWG #14 AWG #12 AWG #10 AWG #8 Appendix E Wire Resistance In Ohms

0016-00, UVC120, MAN -0016-00 specifications

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