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INSTALLATION 

 

2-7

 

Document No.: SIG-00-11-10  Version: A.1 

2.1.5

 

 

Threshold Settings 

 

The current sensor module has adjustable threshold settings for each input. The 

settings are adjusted via DIP switches located on the front of the unit.  The DIP 

switch settings are shown in Figure 2-9. 

 

 

 

WARNING 

 

IT IS THE RAILROAD'S OR AGENCY'S RESPONSIBILITY 

THAT THE INSTALLATION IS FULLY OPERATIONALLY 

TESTED TO ENSURE SAFETY. SYSTEM OPERATION MUST 

BE VERIFIED PRIOR TO PLACING SYSTEM IN SERVICE

. 

 

 

WARNING 

UNDER LIMITED CONDITIONS, LOW VOLTAGE FOREIGN 

ENERGY MAY TRIGGER A CURRENT SENSOR. WHEN THIS 

OCCURS, THE CURRENT SENSOR INDICATES THAT THE 

LAMP IS LIT EVEN THOUGH IT IS NOT. THIS HAZARD 

OCCURS MOST OFTEN WHEN USING INCANDESCENT 

LAMPS. 

TO AVOID THIS HAZARD, USE  VOLTAGE SENSING 

COMBINED WITH CURRENT SENSING TO DETECT THE 

LAMP STATE. 

 

NOTE 

 

±1.03 Amps is the recommended setting for 

standard lamps and is the factory default 

setting. The ±0.65 Amps setting is reserved 

for future use. 

 

 

 

NOTE 

 

Ensure the threshold setting  is set for  ALL 

outputs. 

 

 

 

 

 

 

 

 

Summary of Contents for A80850

Page 1: ...rfront Drive Munhall Pennsylvania 15120 1 800 793 SAFE www usa siemens com rail manuals Copyright 2011 2019 Siemens Mobility Inc User Guide WIU Current Sensor A80850 DECEMBER 2011 REVISED MARCH 2019 DOCUMENT NO SIG 00 11 10 VERSION A 1 ...

Page 2: ... as stated in the current Terms and Conditions of Sale document Warranty adjustments will not be allowed for products or components which have been subjected to abuse alteration improper handling or installation or which have not been operated in accordance with Seller s instructions Alteration or removal of any serial number or identification mark voids the warranty SALES AND SERVICE LOCATIONS Te...

Page 3: ...nsion 2 6 2 1 5 Threshold Settings 2 7 2 1 6 Example Installations 2 9 Table of Figures Figure No Title Page Figure 1 1 Current Sensor Module 1 1 Figure 1 2 Current Sensor Adapter Board 1 2 Figure 2 1 Typical Three Lamp Signal Current Sensor Installation 2 1 Figure 2 2 Installed Current Sensor Adapter 2 2 Figure 2 3 Current Sensor Wiring without Terminal Board Adapter 2 3 Figure 2 4 Current Sensor...

Page 4: ...iscussion CAUTION REFERS TO PROPER PROCEDURES OR PRACTICES WHICH IF NOT STRICTLY OBSERVED COULD RESULT IN A POTENTIALLY HAZARDOUS SITUATION AND OR POSSIBLE DAMAGE TO EQUIPMENT CAUTIONS TAKE PRECEDENCE OVER NOTES AND ALL OTHER INFORMATION EXCEPT WARNINGS WARNING INDICATES A POTENTIALLY HAZARDOUS SITUATION WHICH IF NOT AVOIDED COULD RESULT IN DEATH OR SERIOUS INJURY WARNINGS ALWAYS TAKE PRECE DENCE ...

Page 5: ...cuit board but avoid touching circuit traces or components Handle circuit boards by the edges only Never physically touch circuit board or connector contact fingers or allow these fingers to come in contact with an insulator e g plastic rubber etc When not in use place circuit boards in approved static shielding bags contact fingers first Remove circuit boards from static shielding bags by graspin...

Page 6: ...vi Document No SIG 00 11 10 Version A 1 This Page Intentionally Left Blank ...

Page 7: ...ergized state of the wayside signal lamps and the signal aspect information is transmitted by the WIU to the locomotive 1 1 1 Current Sensor Board The current sensor board is designed to monitor up to three lamps The main board contains all the circuit components needed to create the digital outputs that represent the state of the lamps including the sensors themselves A Current Sensor Adapter boa...

Page 8: ...t sensor adapter board in its place an extension loop pre wired through the sensor is added to that lamp wire This is accomplished in a relatively simple easy and minimally disruptive manner Figure 1 2 shows the current sensor adapter board Figure 1 2 Current Sensor Adapter Board 1 2 Ordering Information The following is the ordering information for the WIU Current Sensor Part Number Description 8...

Page 9: ...ND WIRING ARE PROPERLY INSTALLED AND MEET THE RAILROAD S OR AGENCY S APPROVED WIRING OR INSTALLATION DIAGRAM FAILURE TO DO SO MAY LEAD TO INCORRECT OR UNSAFE OPERATION OF THE SIGNAL SYSTEM CAUTION SIEMENS MOBILITY INC STRONGLY RECOMMENDS INSTALLING PRIMARY SURGE PROTECTION ON EXTERNAL LINES CONNECTING TO THE VIU NOTE The WIU Current Sensor is not intended to be used for current sensing of Pulse Wi...

Page 10: ...s and make them PTC ready with minimal effort Figure 2 1 shows the comparison of an existing terminal board and a modified terminal board with the current sensor adapter installed Figure 2 2 displays a current sensor adapter mounted on a signal terminal block The optional current sensor adapter cab be installed on each lamp terminal Figure 2 2 Installed Current Sensor Adapter ...

Page 11: ...t current output is picked up from the WIU device The current sensor output J2 is connected to the WIU device I O using shielded cable Figure 2 3 Current Sensor Wiring without Terminal Board Adapter Figure 2 4 Current Sensor Wiring with Terminal Board Adapter J1 J2 J3 J4 J2 Cable Shield VITAL DIGITAL INPUTS VITAL TEST CURRENT OUTPUT POWER INPUT WIU BATTERY To Lamp From Lamp Driver Terminal Board J...

Page 12: ...THE CURRENT SENSOR AND THE WIU NOTE The shielded cable used in connecting the current sensor output to the WIU device I O input has the shield terminated at the output source current sensor The shield is NOT connected at the WIU I O to avoid creating a ground loop Trim any excess shield wire flush with the wire insulation Belden 9939 or equivalent cable is recommended Figure 2 5 Shielded Current S...

Page 13: ...ring going to the signal lamp is shown in the figure below Siemens Mobility Inc strongly recommends this type of installation CAUTION SIEMENS MOBILITY INC STRONGLY RECOMMENDS INSTALLING PRIMARY SURGE PROTECTION ON EXTERNAL LINES CONNECTING TO THE VIU Figure 2 6 Typical Installation with Surge Suppression J1 J2 J3 J4 J2 To Lamp Terminal Board From Lamp Driver Current Sensor Adapter Board Existing T...

Page 14: ... To install an expansion module insert J3 of the expansion module into J4 of the main module as shown in Figure 2 7 Up to nine additional expansion modules maximum of 10 interconnected units may be installed as shown in Figure 2 8 Figure 2 7 Current Sensor Module Expansion Figure 2 8 Multiple Expansion Modules 10 maximum Main Module 1 Expansion Module 2 Expansion Module 3 Expansion Module 4 Main M...

Page 15: ...SYSTEM OPERATION MUST BE VERIFIED PRIOR TO PLACING SYSTEM IN SERVICE WARNING UNDER LIMITED CONDITIONS LOW VOLTAGE FOREIGN ENERGY MAY TRIGGER A CURRENT SENSOR WHEN THIS OCCURS THE CURRENT SENSOR INDICATES THAT THE LAMP IS LIT EVEN THOUGH IT IS NOT THIS HAZARD OCCURS MOST OFTEN WHEN USING INCANDESCENT LAMPS TO AVOID THIS HAZARD USE VOLTAGE SENSING COMBINED WITH CURRENT SENSING TO DETECT THE LAMP STA...

Page 16: ... 2 8 Document No SIG 00 11 10 Version A 1 Figure 2 9 Threshold Settings Threshold 1 80 Amps Threshold 1 42 Amps Threshold 1 03 Amps Factory Default Threshold 0 65 Amps Reserved for future use A A A A B B B B OFF ON ...

Page 17: ...module and an expansion module Six current sensor adapters are installed to provide the six lamp current to the sensor modules Six surge suppressors are installed to protect the equipment from power and lightning surges The current sensor modules are fed into an Siemens Mobility Inc VIU 16i that will supply data to a network via hardwire or data radio Figure 2 10 Example Current Sensor Installatio...

Page 18: ...00 11 10 Version A 1 An example drawing of current sensing of the individual signal lamps using an Siemens Mobility Inc VIU and surge suppression is shown in Figure 2 11 Figure 2 11 Example of Current Sensing for Individual Signal Lamps ...

Page 19: ...age sensing installation where current sensing is used on the lamp common and voltage sensing is used on the individual signal lamps is shown in Figure 2 12 The Siemens Mobility Inc VIU and surge suppression equipment is used in the installation Figure 2 12 Example of Current Voltage Sensing ...

Page 20: ...Nelson Miller Parkway Louisville Kentucky 40223 502 618 8800 Siemens Mobility Inc 939 South Main Street Marion Kentucky 42064 270 918 7800 Siemens Mobility Inc 700 East Waterfront Drive Munhall Pennsylvania 15120 1 800 793 SAFE ...

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