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THIS MANUAL CONTAINS TECHNICAL INFORMATION FOR THE 

NSM-3E

 SERIES 

SIGNAL MONITOR UNIT. 

REVISION: JULY 2017 

pn 888-0003-002 

 

 

 

 

 

NSM-3E 

 

 

NEMA TS-1 

Enhanced Signal Monitor 

Operations Manual 

 

 

 

Summary of Contents for NEMA TS-1

Page 1: ...THIS MANUAL CONTAINS TECHNICAL INFORMATION FOR THE NSM 3E SERIES SIGNAL MONITOR UNIT REVISION JULY 2017 pn 888 0003 002 NSM 3E NEMA TS 1 Enhanced Signal Monitor Operations Manual ...

Page 2: ...RODUCTION OR USE IN WHOLE OR PART IS NOT PERMITTED EXCEPT UNDER TERMS AGREED UPON IN WRITING LEDGUARD IS A REGISTERED TRADEMARK OF EBERLE DESIGN INC COPYRIGHT 2017 EDI MAINTENANCE NOTE THIS EBERLE DESIGN INC AUXILIARY MONITOR UNIT HAS BEEN CAREFULLY INSPECTED AND TESTED TO ENSURE PROPER OPERATION IT IS RECOMMENDED THAT THE AUXILIARY MONITOR UNIT BE TESTED AT LEAST ANNUALLY TO ENSURE PROPER OPERATI...

Page 3: ...Test 5 Section 3 Installation 6 3 1 Harnessing Connectors 6 3 2 Minimum Flash Dip Switch Programming 6 3 3 SSM Dip Switch Programming 6 3 4 Option Dip Switch Programming 6 3 4 1 GY Enable 6 3 4 2 RP DISABLE 6 3 4 3 WALK DISABLE 7 3 4 4 CVM LATCH 7 3 4 5 24V LATCH 7 3 4 6 LEDguard 7 3 4 7 OPTION A 7 Section 4 Front Panel Description 8 4 1 Status Display 8 4 1 1 POWER Indicator 8 4 1 2 CONFLICT Indi...

Page 4: ...5 1 4 Logic Inputs 10 5 2 Timing Functions 10 5 3 Mechanical 11 5 4 Environmental 11 Section 6 Wiring Assignments 12 6 1 NSM 3E Monitor Unit Connector A 12 ...

Page 5: ...ations TS 1 part 6 the NSM 3E Signal Monitor will enter the fault mode causing the Output relay to de energize and two sets of contacts on the Output relay to transfer The cabinet assembly should be wired such that the closure of the signal monitor Output relay contacts will cause an automatic switching of the field signal outputs from normal operation to flashing operation The NSM 3E Signal Monit...

Page 6: ...e absence of the proper voltage level at either of the two 24VDC inputs 24V I 24V II will place the NSM 3ESignal Monitor into the fault mode causing the Output relay contacts to transfer The 24V 2 and or the 24V 1 indicator s will be displayed on the Fault Status Display along with the field output signals active at the time of the voltage fault Restoration of the voltage levels will not reset the...

Page 7: ...retain fault status information in the event of an AC Line power interruption The correct fault indications will be displayed upon restoration of AC Line power This EEPROM nonvolatile memory requires no battery back up No monitor configuration programming is stored under battery power 2 2 DUAL INDICATION MONITORING This monitoring function detects simultaneous indications of active Green Yellow Wa...

Page 8: ...ensing faults which are intermittent or pulsing in nature The RMS Engine is designed to filter out short term transients commonly found on the electrical service and provide noise immunity against false signal detections The Recurrent Pulse detection function is designed to respond to fault conditions which are intermittent in nature and do not meet the continuous timing requirements of the normal...

Page 9: ...ge Monitor Fault if the 24V Latch or CVM Latch options are enabled The NSM 3E Signal Monitor stores the fault and channel indicator status into non volatile EEPROM memory Should an AC power interruption occur while the monitor is in the fault mode then upon restoration of AC power the Output relay will remain in the fault mode and the correct fault and channel information will be displayed This fa...

Page 10: ...Off On 13 seconds On On On Off 14 seconds On On On On 15 seconds It is recommended that the Minimum Flash Time be programmed on the NSM 3E Signal Monitor to exceed the initialization time of all cabinet assembly components following an AC restoration The amount of flash time is typically equal to the amount programmed on the controller so that if the controller fails to execute a minimum flash per...

Page 11: ...s 1 3 1 and 2 2 2 3 4 4 CVM LATCH Set this switch to the ON position to change a CVM fault to the latched state See Section 1 4 2 3 4 5 24V LATCH Set this switch to the ON position to change a 24V 1 or 24V 2 fault to the latched state See Section 1 4 1 3 4 6 LEDGUARD Set this switch to the ON position to Enable the LEDguard function See Section 2 5 3 4 7 OPTION A This DIP switch is currently not a...

Page 12: ...icator will be illuminated when a Controller Voltage Monitor Fault is detected The Channel Status display will show the active signals for each channel at the time of the fault 4 1 5 24V 1 24V 2 VOLTAGE MONITOR INDICATORS These indicators will be illuminated if the corresponding voltage input is below the minimum specified level The Channel Status display will show the active signals for each chan...

Page 13: ... the field signals active at the time of the fault for 6 seconds and the channels which were involved in the fault fault status for 2 seconds The channels involved in the fault will flash their respective Green Yellow Walk and Red indicators simultaneously at a 4 Hz rate for the 2 second fault status interval If the fault displayed is a Recurrent Pulse Conflict Recurrent Pulse Dual Indication or a...

Page 14: ... Detect less than 50 Vrms Detect greater than 70 Vrms Red Enable Input No Detect less than 50 Vrms Detect greater than 70 Vrms LEDguard Low Threshold Signal Inputs No Detect less than 15 Vrms Detect greater than 25 Vrms LEDguard High Threshold Signal Inputs No Detect less than 50 Vrms Detect greater than 70 Vrms AC Line Voltage Monitor Drop out less than 92 _2 Vrms Restore greater than 96 _2 Vrms ...

Page 15: ...conds Fault greater than 500 milliseconds Typical 400 milliseconds Clearance Fail Short Yellow Fault less than 2 6 seconds No Fault greater than 2 8 seconds Typical 2 7 seconds AC Interruption disable greater than 475 milliseconds 25 milliseconds Minimum Flash after disable 4 to 15 seconds 1 second Start Delay Relay timer 2 5 seconds 1 second 5 3 MECHANICAL Height 6 5 inches Width 3 0 inches Depth...

Page 16: ... CHANNEL 3 YELLOW 11 L CHANNEL 2 GREEN 12 M CHANNEL 2 YELLOW 13 N CHANNEL 1 GREEN 14 P CHANNEL 1 YELLOW 15 R CHANNEL 1 WALK 16 S 24V MONITOR II 17 T CONTROLLER VOLTAGE MONITOR 18 U 24V MONITOR 19 V LOGIC GROUND 20 W CHASSIS GROUND 21 X AC 22 Y CABINET INTERLOCK A 23 Z OUTPUT RELAY 1 CLOSED 24 a OUTPUT RELAY 2 OPEN 25 b START DELAY RELAY CLOSED 26 c CHANNEL 3 WALK 27 d CHANNEL 3 RED 28 e CHANNEL 2 ...

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