Liebert PDUTM, STS2

Power and Control Wiring

Figure 3 Typical STS2/PDU, one-line diagram

Figure 4 Typical STS2/PDU, one-line diagram, with dual static switch output circuit breakers

(not available on 250A units)

Contents

Main STS2/PDU CONTACTING LIEBERT FOR SUPPORT TABLE OF CONTENTS Page Page FIGURES Page TAB LE S IMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONS Page 1.0 UNPACKING AND INSPECTIONS 1.1 External Inspections 1.2 Unloading and Handling 1.2.1 Handling Considerations 1.2.2 Unit Preparation 1.3 Internal Inspections 2.0 LOCATION CONSIDERATIONS 2.1 Recommended Minimum Service Clearances 2.2 Heat Output 2.3 Operating Environment 2.4 Altitude Max. Ambient Temperature F (C) AltitudeFeet 3.0 LOCATING THE STS2/PDU 3.1 Anchoring the Unit to the Floor 3.2 Leveling of the 250A Only STS2/PDU Without Anchoring 4.0 POWER AND CONTROL WIRING 4.1 Input and Output Power Connections !WARNING Page Page 4.2 System Grounding 4.3 Control Wiring Connections 4.4 Remote Source Selection Wiring !WARNING 4.5 Power Supply 5.0 OUTPUT POWER WIRING 5.1 Customer Connections 6.0 O 6.1 Programmable Relay Board 6.2 Input Contact Isolator Board 6.3 Comms Board 6.4 Internal Modem 6.5 Network Interface Card (NIC) 6.6 Remote Source Selection 6.7 Key Lockout Switch 6.8 Static Switch Redundant Output Breaker 6.9 Inline Panelboards 6.10 I-Line Panelboards Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Table 9 Input circuit breaker schedule, 250-800A Table 10 Output circuit breaker schedule, 250-800A Table 11 Non-automatic breaker schedule, 250-800A 8.0 INTRODUCTION TO STS2/PDU OPERATIONS 8.1 System Description 8.1.1 Redundancy 8.1.2 Reliability and Agency Requirements 8.1.3 Factory Backup and Service Assistance 8.2 Modes of Operation 8.2.1 Normal (Preferred Source) 8.2.2 Transfer 8.2.3 Transfer Inhibit 8.2.4 Bypass 8.3 Operator Controls 9.0 THEORY OF OPERATION 9.1 General Description 9.1.1 Static Transfer Switch 2 Power Distribution Unit 9.1.2 Source Transfer 9.1.3 Automatic Transfer/Retransfer 9.2 Detailed Component Description 9.2.1 Controls Operator Interface Hardware Firmware 9.2.2 Circuit Breakers and Non-Automatic Circuit Breakers 9.2.3 SCRs 9.2.4 Logic Modules 9.2.5 Audible Alarm 10.0 OPERATING INSTRUCTIONS 10.1 Normal System Turn-On 10.2 Manual Transfer / Preferred Source Selection 10.3 Enabling Remote Source Selection 10.4 Maintenance Bypass 10.4.1 Bypass Procedures for Source 1 10.4.2 Bypass Procedures for Source 2 10.5 Normal System Shutdown 10.5.1 Shutdown in Static Transfer Switch Mode Page 11.0 A LARMS AND FAULTS 11.1 Event Mask 11.2 Event and History Logs 11.2.1 Event Log 11.2.2 History Log 11.3 Alarm Notes 11.4 List of Messages Table 12 Event messages Table 12 Event messages (continued) 12.0 COMMUNICATION INTERFACES 12.1 Using the RS-232 Port 12.1.1 Connecting and Using a Terminal 12.1.2 Configuring the STS2/PDU via the Terminal Groups Parameter Item Parameter Value Param eter Page 12.1.3 Setting Bitpacked Options With the Terminal Page Putting the Terminal Command Together 12.1.4 Setting Event Masks with the Terminal Page 13.0 TOUCH SCREEN DISPLAY 13.1 Display Overview 13.2 Menu Overview 13.2.1 Security Using the Optional Key Lockout Switch Using the Password 13.3 Mimic Display 13.4 Event Controls 13.5 Event Display 13.6 Menu Bar 13.7 Configuration Menu Event Masks User Settings Source Setpoints Page Page PDU Setpoints System Settings Comm Options Configuring the Modem Page Page Configuring the Input Contact Isolator Settings Configuring the Programmable Relay Board Settings Configuring the Network Interface Card SiteScan Configuration Saving Your Communications Configurations System Options Dual Output Breaker PDU 4 Pole Transfer Switch Shunt Trip Wye Output Transformer Remote Source Select 13.7.1 Logs Event Log History Log 13.7.2 Source Transfers 13.7.3 Startup Procedure 13.8 Cleaning the LCD Touch Screen 14.0 S 14.1 System Configuration 14.1.1 Frequency 14.1.2 Input Voltage 14.1.3 Output Voltage 14.2 System Components 14.2.1 Frame and Enclosure 14.2.2 Caster and Leveling - 250A only 14.2.3 Cooling 14.2.4 Access 14.2.5 Circuit Breakers 14.2.6 Cable Entrance 14.2.7 Doors 14.2.8 Color Graphical Display 14.2.9 RS-232 Port 14.2.10 Terminal Port Connections 14.2.11 RS-232 Interface Parameters 14.2.12 Maintenance Bypass 14.2.13 Fuseless Design 14.2.14 Options 15.0 EVENT MESSAGE HELP TEXT Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page 16.0 M 16.1 Proper Tightening of Nuts and Bolts 16.2 Testing the STS2/PDU 16.3 Changing the Air Filter 17.0 CUSTOMER SETTINGS 17.1 Programmable Relay Board Settings 17.2 Input Contact Isolator Settings Page The Company Behind the Products Technical Support/Service Locations POWER DISTRIBUTION STS2/PDU I NSTALLATION , O PERATION & M AINTENANCE M