Solid State Code Transmitter (SSCT) Upgrade for
Contents
1. covered in Service Manual 4568A 1 2 Description Since the SSCT is a direct plug in replacement for the GRS ALSTOM Type B Size 2 mechanical code transmitter the physical size and positioning of the contact fingers are predetermined Operation of this type of mechanical code transmitter is based on an oscillating armature on a vertical shaft which has a natural frequency of oscillation Motion is sustained by an electromagnetic circuit which alternately attracts the oscillating armature in opposite directions The oscillating armature alternately closes and opens opposing sets of contacts In the neutral position of the pendulum which also corresponds to its position with no voltage applied to the coil neither set of contacts are closed For nearly one half of the oscillating armature motion one set of contacts are closed and for the opposing range of motion a second set of contacts are closed Available nominal code rates are 50 75 120 180 270 and 420 Codes Per Minute CPM Since the contacts are arranged as break before make both sets are alternately closed for less than 50 of the oscillation period It is this fundamental operation that is duplicated electronically by the SSCT Side Front Figure 1 1 GRS ALSTOM Type B Size 2 Mechanical Code Transmitter After Upgrade SM 4568 Rev 2 March 2006 1 1 General Information UNION SWITCH amp SIGNAL Different types of contacts are provided for varying applications with broa2. UNION SWITCH amp SIGNAL Union Switch amp Signal Inc an Ansaldo Signal company 1000 Technology Drive Pittsburgh PA 15219 e 645 Russell Street Batesburg SC 29006 S M 4568 Solid State Code Transmitter SSCT Upgrade for GRS ALSTOM Type B Size 2 Mechanical Code Transmitter Installation Operation Copyright 2006 SM 4568 Rev 2 Union Switch amp Signal Inc March 2006 UNION SWITCH amp SIGNAL eds Proprietary Notice This document and its contents are the property of Union Switch amp Signal Inc hereinafter US amp S This document has been furnished to you on the following conditions no right or license under any patents or any other proprietary right in respect of this document or its content is given or waived in supplying this document This document or its content is not to be used or treated in any manner inconsistent with the rights of US amp S or to its detriment and are not to be copied reproduced disclosed to others or transferred without the prior written consent of US amp S Important Notice US amp S constantly strives to improve our products and keep our customers apprised of changes in technology Following the recommendations contained in the attached service manual will provide our customers with optimum operational reliability The data contained herein purports solely to describe the product and does not create any warranties Within the scope of the attached manual it is impossible to
3. d classifications of low voltage and high voltage ratings In order to ensure that units of different code rates or contact ratings are not interchanged an indexing plate is used that matches a set of holes to a set of pins on the plug in base Thus the fundamental specification of the SSCT is determined Unlike the mechanical counterpart however the high voltage version of the SSCT will be relegated to AC switching only The low voltage version will be suitable for either AC or DC switching 1 3 Specifications Table 1 1 Operating Specifications Switch Rating Low Voltage AC or DC 2 5 amperes 32 volts DC Max or 22 VRMS AC Max 0 5 W ON resistance Short circuit protected Tranzorb transient protected at 34 volts peak High Voltage 2 5 amperes Peak 150 VRMS Max AC only The voltage drop is 1 25 volts across an ON switch and is independent of load current an external 10 ampere fuse is required for short circuit protection MOV transient protected at 230 VRMS Number of Switches Four arranged in opposing pairs Dielectric Strength 2000 VRMS between all external isolated connections and case except across open switches which are limited by transorb or MOV protection Maximum voltage is determined by a transorb to protect DC switches from excessive voltage spikes when operating code following relays for the AC version a 230 VRMS MOV is similarly used anticipating 120 VRMS as the source voltage Table 1 2 SSCT Code Sp
4. ecifications Version Nominal US amp S Code Part Voltage Code Tolerance Model No Number Rate ES Rate Percentage 0 0 0 5 5 5 20 20 20 1 2 SM 4568 Rev 2 March 2006 UNION SWITCH amp SIGNAL General Information US amp S ke dell On Time Model No Nuber Percentage N32000104 175 193 180 AC DC N32000112 INET 175 193 Figure 1 2 Index Plate Table 1 3 SSCT Indexing Model High Voltage Low Voltage Hi Low Voltage 50 1 3 10 25 1 2 5 6 TBD 75 1 2 17 19 1 2 5 14 1 4 5 7 120 1 2 17 20 1 2 5 15 TBD 180 1 2 17 21 1 2 5 16 TBD 276 1 3 9 22 1 3 7 8 TBD 420 TBD TBD TBD SM 4568 Rev 2 March 2006 1 3 General Information UNION SWITCH amp SIGNAL 1 4 SM 4568 Rev 2 March 2006 UNION SWITCH amp SIGNAL Installation and Operation 2 Installation and Operation 2 1 General To avoid personal injury or equipment damage observe all electrical safety precautions when installing the SSCT Power does not have to be turned off to perform this procedure 2 2 Installation Procedure Refer to Figures 1 1 and 2 1 1 The SSCT is designed to directly replace the GRS ALSTOM Type B Size 2 mechanical code transmitter No wiring or circuitry changes are required 2 Ensure that the correct SSCT model is available for installation Verify that the drilling of the index plate is correct for the code rate and model type AC or DC See Section 1 3 and Tab
5. ee eee eee eee eee n n 2 1 3 RAIL Team and Technical Support ssssssssssssssssssssssrsrssnnnnnnnnnnnnsnn annan aaa Sana Rn nn nn 3 1 List of Figures Figure Page Figure 1 1 GRS ALSTOM Type B Size 2 Mechanical Code Transmitter After Upgrade 1 1 Figure 1 2 Index Plate sssnsssorossssesdsapsnsssbuainensisosan ta kvrsakordnkendssessserrn oda 1 3 Figure 2 1 Solid State Code Transmitter Basic Package 2 eeeeeeeeeeeeeen n 2 2 List of Tables Table Page Table 1 1 Operating Specifications ici ts 1 2 Table 1 2 SSCT Code Specifications eneee eeen ennet enerne rennan ennnen nananana nananana RSK RR SR RR SR 1 2 Fable 1 3 SS CT Nden aas ba ata 1 3 SM 4568 Rev 2 March 2006 iii Table of Contents UNION SWITCH amp SIGNAL iv SM 4568 Rev 2 March 2006 UNION SWITCH amp SIGNAL General Information 1 General Information 1 1 Introduction This service manual provides description and installation information for Union Switch amp Signal s Upgrade to the GRS ALSTOM Type B Size 2 mechanical code transmitter Figure 1 1 This upgrade provides a solid state option for customers with existing installations utilizing the GRS ALSTOM mechanical code transmitter Model numbers are determined by the nominal code rate and operating voltage of the code transmitter as outlined in Table 1 1 The US amp S version of this code transmitter with a GRS ALSTOM base the Solid State Code Transmitter SSCT is
6. le 1 1 for code rates and power options and Figure 1 2 and Table 1 2 for index patterns 3 Unscrew the two retaining nuts and remove the old code transmitter unit Save the retaining nuts for securing the SSCT 4 Install the SSCT into the existing base replace the retaining nuts and tighten securely 2 3 Verify Operation 1 Verify that the newly installed SSCT is operating by observing that the two LED indicators are blinking in an alternating fashion 2 Verify that the overall system which the SSCT is a part of is functioning properly 2 4 Maintenance and Periodic Inspection 1 The SSCT is a maintenance free unit 2 There are no FRA requirements for periodic checking of solid state code transmitter units Periodic verification of SSCT code rate operation is at the customer s discretion 3 Malfunctioning SSCT units should be returned to Union Switch amp Signal for warranty repair SM 4568 Rev 2 March 2006 2 1 Installation and Operation UNION SWITCH amp SIGNAL A 3 F BE 4 3 2 1 L Y E o o Rear View 6 5 16 gt A O Index Plate lt LU y Figure 2 1 Solid State Code Transmitter Basic Package 2 2 SM 4568 Rev 2 March 2006 UNION SWITCH amp SIGNAL RAIL Team and Technical Support 3 RAIL Team and Technical Support The Rapid Action Information Link RAIL Team is com
7. prised of experienced product and application engineers ready to assist and resolve technical issues concerning any US amp S product Any questions regarding the contents of this service manual can be answered by contacting the RAIL Team via e mail at railteam switch com or a toll free call to 1 800 652 7276 4 nou N gt SM 4568 Rev 2 March 2006 3 1 RAIL Team and Technical Support UNION SWITCH amp SIGNAL 3 2 SM 4568 Rev 2 March 2006
8. take into account every eventuality that may arise with technical equipment in service Please consult your local US amp S Account Executive in the event of any irregularities with our product We expressly disclaim liability resulting from any improper handling or use of our equipment even if these instructions contain no specific indication in this respect We strongly recommend that only approved US amp S spare parts be used as replacements SM 4568 Rev 2 March 2006 i Revision History UNION SWITCH amp SIGNAL Revision History October 1997 Original Issue December 2000 Revision 1 March 2006 Incorporate ECN CRS 1407 Revised operating voltage range from 8 to 16 VDC to 9 to 16 VDC Prepared and sent for FTR ii SM 4568 Rev 2 March 2006 UNION SWITCH amp SIGNAL Table of Contents Table of Contents 1 General Information sssssssssssssssrssnsnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn nana n nn Ann n Rn nn Rn RR RR ARR RAR RR RAR RR RAR RR nn 1 1 1 1 A P RO bes bre sen O O O O P AS Ae O O O O O O Or ANDENS ERAN 1 1 1 2 Descrip altillo 1 1 1 3 Specifications A a 1 2 2 Installation and Operation avion RA ikea dave RR RR RER RR RANA RR Rn nn 2 1 2 1 General O 2 1 2 2 Installation Procedure iii A A Ghee k nakup nod o a st ho ts 2 1 2 3 Ver OD STAN OM cay cass He Repos added Becca a oe ach ad oc Be cones eater ee aslo 2 1 2 4 Maintenance and Periodic Inspection 2 22 2222 eee eee eee ee eee eee e
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