User ManualTable of ContentsImportant Safety Instructions9Save these instructions9Overview of Manual101.0 Safety Precautions112.0 Unpacking and Inspections122.1 External Inspections122.2 Unloading and Handling122.2.1 Handling Considerations132.2.2 Unit Preparation132.3 Internal Inspections133.0 Location Considerations143.1 Recommended Minimum Service Clearances143.2 Heat Output14Table 1 Heat Output143.3 Operating Environment143.4 Altitude15Figure 1 Recommended derating for high altitude operation15Figure 2 Maximum ambient temperature for full load operation at higher altitudes15Table 2 Altitude conversion-feet to meters154.0 Locating the STS2164.1 Leveling and Anchoring the Unit to the Floor164.2 Leveling of the Static Switch Without Anchoring164.3 Leveling and Anchoring the Static Switch Using Floor Stand165.0 Power and Control Wiring175.1 Input And Output Power Connections17Figure 3 Typical static transfer switch one-line diagram17Table 3 Input/output conduit plate specifications185.2 Input Junction Box Installation (Optional)18Table 4 Input junction box dimensions18Table 5 Input junction box terminal wire size range185.3 System Grounding19Figure 4 Typical one-line diagram of two PDUs and a static transfer switch195.4 Control Wiring Connections195.5 Remote Source Selection Wiring20Table 6 Remote source selection terminal block205.6 Power Supply20Table 7 Terminal block 1 and terminal block 2 wire connections206.0 Options216.1 Programmable Relay Board21Table 8 Programmable relay board pinout216.2 Optimized Transfer216.3 Distribution Cabinet With I-Line Panelboard-100-600A Units Only226.4 Input Contact Isolator Board226.5 Comms Board226.6 Internal Modem226.7 Network Interface Card (NIC)236.8 LED Display236.9 Remote Source Selection236.10 Key Lockout Switch236.11 Redundant Output Breaker236.12 Input Junction Boxes and Cables246.13 Seismic Floor Anchors246.14 Seismic Floor Stand247.0 Installation Drawings25Figure 5 Outline drawing: 100 - 250 amp STS225Figure 6 Outline drawing: 400 - 600 amp STS226Figure 7 Outline drawing: 800 - 1000 amp STS227Figure 8 Outline drawing: 100 - 250amp STS2 with a key lockout switch option28Figure 9 Outline drawing: 400 - 600 amp STS2 with a key lockout switch option29Figure 10 Outline drawing: 800 - 1000 amp STS2 with the key lockout switch option30Figure 11 Seismic anchor drawing: 100 - 250 amp STS231Figure 12 Seismic anchor drawing: 400 - 600 amp STS232Figure 13 Seismic anchor drawing: 800 - 1000 amp STS233Figure 14 Electrical field connections drawing: 100 - 250 amp STS2 with single output breaker34Figure 15 Electrical field connections drawing: 100 - 250 amp STS2 with dual output breakers35Figure 16 Electrical field connections drawing: 400 - 600 amp STS2 with single output breaker36Figure 17 Electrical field connections drawing: 400 - 600 amp STS2 with dual output breakers37Figure 18 Electrical field connections drawing: 800 - 1000 amp STS2 with single output breaker38Figure 19 Electrical field connections: 800 - 1000 amp STS2 with dual output breakers39Figure 20 Circuit breaker schedule40Figure 21 Control connection location diagram: 100 - 600 amp STS241Figure 22 Control connection location diagram: 800 - 1000 amp STS242Figure 23 Control wiring for remote source selection option43Figure 24 Control wiring for the programmable relay board option44Figure 25 Control wiring for the input contact isolator board option45Figure 26 Control wiring for comms board (see Figure 27 on page 39 for internal modem wiring)46Figure 27 Control wiring for the internal modem option47Figure 28 Control wiring for the network interface card (NIC) option48Figure 29 Control wiring for the RS-232 port49Figure 30 Outline drawing for input junction box50Figure 31 Color LCD touch screen display51Figure 32 LED display52Figure 33 Installation drawing, seismic floor stand 100-250A53Figure 34 Installation drawing, seismic floor stand 100-250A54Figure 35 Installation drawing, seismic floor stand 100-250A55Figure 36 Installation drawing, seismic floor stand 100-250A56Figure 37 Installation drawing, seismic floor stand 400-600A57Figure 38 Installation drawing, seismic floor stand 400-600A58Figure 39 Installation drawing, seismic floor stand 400-600A59Figure 40 Installation drawing, seismic floor stand 400-600A60Figure 41 Installation drawing, seismic floor stand 800-1000A61Figure 42 Installation drawing, seismic floor stand 800-1000A62Figure 43 Installation drawing, seismic floor stand 800-1000A63Figure 44 Installation drawing, seismic floor stand 800-1000A648.0 Introduction to STS2 Operations658.1 System Description658.1.1 Redundancy658.1.2 Reliability and Agency Requirements668.1.3 Factory Backup and Service Assistance668.2 Modes of Operation668.2.1 Normal (Preferred Source)668.2.2 Transfer668.2.3 Transfer Inhibit668.2.4 Bypass678.3 Operator Controls67Figure 45 STS2 touch screen display679.0 Theory of Operation689.1 General Description689.1.1 STS2 Static Transfer Switch689.1.2 Source Transfer689.1.3 Automatic Transfer/Retransfer68Automatic Retransfer Inhibited689.1.4 Emergency Transfer699.1.5 Load Current Transfer Inhibit699.1.6 SCR Failure699.1.7 On/Off Sequence699.2 Detailed Component Description699.2.1 Controls69Operator Interface69Hardware70Firmware709.2.2 Circuit Breakers709.2.3 SCRs709.2.4 Logic Modules719.2.5 Audible Alarm719.2.6 RS-232 Port7110.0 Operating Instructions for the Touch Screen Interface7210.1 Normal System Turn-On73Figure 46 STS2 touch screen display7310.2 Manual Transfer / Preferred Source Selection74Figure 47 Source transfer screen7410.3 Enabling Remote Source Selection7510.4 Maintenance Bypass75Figure 48 Gate board viewing slot locations7610.4.1 Bypass Procedures for Source 17710.4.2 Bypass Procedures for Source 27810.5 Normal System Shutdown7810.5.1 Shutdown in Static Transfer Switch Mode7810.5.2 Shutdown in Maintenance Bypass Mode7811.0 Alarm and Faults7911.1 Event Mask7911.2 Event and History Logs8011.2.1 Event Log8011.2.2 History Log8011.3 Alarm Notes8111.4 List of Messages82Table 9 Event Messages8212.0 Communication Interfaces8412.1 Using the RS-232 Port8412.1.1 Connecting and Using a Terminal85Table 10 Terminal Commands8512.1.2 Configuring the STS2 via the Terminal86Groups Parameter86Item Parameter86Value Parameter87Table 11 Value types87Table 12 Group settings and values8712.1.3 Setting Bitpacked Options with the Terminal89Table 13 Binary-Hexadecimal Conversions90Putting the Terminal Command Together9112.1.4 Setting Event Masks with the Terminal91Examples of Event Mask Settings9213.0 STS2 Touch Screen Display9313.1 Display Overview93Figure 49 STS2 touch screen display9313.2 Menu Overview94Figure 50 Menus94Figure 51 Keyboard and keypad displays9413.2.1 Security95Using the Optional Key Lockout Switch95Figure 52 Key lockout switch.95Using the Password9513.3 Mimic Display9613.4 Event Controls9613.5 Event Display9613.6 Menu bar9613.6.1 Configuration Menu96System Ratings96Event Masks96Figure 53 Event mask dialog box97User Settings97Figure 54 User settings dialog box98Source Set Points98Figure 55 Source setpoints99Table 14 Set Point Parameters99System Settings101Comm Options101Figure 56 Comm options dialog box101Configuring the Modem102Figure 57 Modem dialog box102Configuring Pager Support103Configuring the Input Contact Isolator Settings103Figure 58 Input contact isolator dialog box104Configuring the Programmable Relay Board Settings105Table 15 Standard Settings for Programmable Relays105Figure 59 Programmable relay board dialog box106Configuring the Network Interface Card106SiteScan Configuration107Saving Your Communications Configurations107System Options107Figure 60 System options107Dual Output Breaker107PDU1074 Pole Transfer Switch108Shunt108Wye Output Transformer108Remote Source Selection108System ID10813.6.2 Logs109Event Log109Figure 61 Event log109History Log109Figure 62 History log10913.6.3 Source Transfers11013.6.4 Startup Procedure11013.6.5 Bypass Procedure11013.6.6 Help11013.6.7 Logo11013.7 Cleaning the LCD Touch Screen11014.0 Operating the LED Display STS211114.1 LEDs and Buttons and Key Lockout Switch11114.1.1 Front Panel Controls111Figure 63 LED display11114.1.2 LED and push button description112Table 16 LED and push button description11214.1.3 Event Controls11314.1.4 Key Lockout Switch113Figure 64 Key lockout switch.11314.2 Operations11314.2.1 Normal System Turn-On11314.2.2 Manual Transfer / Preferred Source Selection11414.2.3 Maintenance Bypass115Bypass Procedures for Source 1115Bypass Procedures for Source 211614.2.4 Normal System Shutdown117Shutdown in Static Transfer Switch Mode117Shutdown in Maintenance Bypass Mode11715.0 Specifications11815.1 System Configuration11815.1.1 Frequency11815.1.2 Input/Output Voltage118Table 17 Input/Output Voltage11815.1.3 System Current Ratings118Table 18 System Current Ratings11815.1.4 Grounding11915.1.5 Electrical Requirements119Table 19 Electrical Requirements119Table 20 Unit Short Circuit Withstand Capability11915.1.6 Input Surge Suppression11915.1.7 Response Time11915.1.8 Environmental Requirements11915.2 System Components12015.2.1 Frame and Enclosure120Table 21 Frame Sizes12015.2.2 Castors, Leveling and Seismic Anchoring12015.2.3 Cooling12015.2.4 Access12115.2.5 Circuit Breakers12115.2.6 Cable Entrance12115.2.7 Doors12115.2.8 Color Graphical Display or LED Display12115.2.9 RS-232 Port12215.2.10 Terminal Port Connections122Table 22 MTA Plug Pinout122Table 23 DB9 Pinout12215.2.11 RS-232 Interface Parameters123Table 24 RS-232 Settings12315.2.12 Maintenance Bypass12315.2.13 Fuseless Design12315.2.14 Options12316.0 Event Message Help Text12417.0 Maintenance14517.1 Proper Tightening of Nuts and Bolts145Table 25 Torque tightening14517.2 Testing the STS214517.3 Changing the Air Filter145Support Information146Programmable Relay Board Settings Record147Input Contact Isolator Settings Record149Size: 3.52 MBPages: 152Language: EnglishOpen manual