Liebert Static Transfer Switch

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AC Power

For Business-Critical Continuity™

Liebert

Static Transfer Switch 2

™

User Manual–100-1000A, 50/60Hz

Main Page

Default Chapter3
- Table of Contents3
Important Safety Instructions9
- Save These Instructions9
Overview of Manual10
1 Safety Precautions11
2 Unpacking and Inspections12
- External Inspections12
- Unloading and Handling12
  - Handling Considerations13
  - Unit Preparation13
- Internal Inspections13
3 Location Considerations14
- Recommended Minimum Service Clearances14
- Heat Output14
- Operating Environment14
- Table 1 Heat Output14
- Altitude15
- Figure 1 Recommended Derating for High Altitude Operation15
- Figure 2 Maximum Ambient Temperature for Full Load Operation at Higher Altitudes15
4 Locating the Liebert Sts216
- Leveling and Anchoring the Unit to the Floor16
- Leveling of the Static Switch Without Anchoring16
- Leveling and Anchoring the Static Switch Using Floor Stand16
5 Power and Control Wiring17
- Input and Output Power Connections17
- Input Junction Box Installation-Optional18
- Table 3 Table19
- System Grounding20
- Control Wiring Connections20
- Figure 4 Typical One-Line Diagram of Two Pdus and a Static Transfer Switch20
- Remote Source Selection Wiring21
- Power Supply21
- Table 5 Remote Source Selection Terminal Block21
- Table 6 Terminal Block 1 and Terminal Block 2 Wire Connections21
6 Options22
- Programmable Relay Board22
- Optimized Transfer22
- Table 7 Programmable Relay Board Pinout22
- Distribution Cabinet with I-Line Panelboard-100-600A Units Only23
- Input Contact Isolator Board23
- Comms Board23
- Liebert Intellislot ® Web/485 Card with Adapter23
- LED Display24
- Remote Source Selection24
- Key Lockout Switch24
- Redundant Output Breaker24
- Input Junction Boxes and Cables25
- Seismic Floor Anchors25
- Seismic Floor Stand25
7 Installation Drawings26
- Figure 5 Outline Drawing: 100 - 250 Amp Liebert STS226
- Figure 6 Outline Drawing: 400 - 600 Amp Liebert STS227
- Figure 7 Outline Drawing: 800 - 1000 Amp Liebert STS228
- Figure 8 Outline Drawing: 100 - 250Amp Liebert STS2 with a Key Lockout Switch Option29
- Figure 9 Outline Drawing: 400 - 600 Amp Liebert STS2 with a Key Lockout Switch Option30
- Figure 10 Outline Drawing: 800 - 1000 Amp Liebert STS2 with the Key Lockout Switch Option31
- Figure 11 Seismic Anchor Drawing: 100 - 250 Amp Liebert STS232
- Figure 12 Seismic Anchor Drawing: 400 - 600 Amp Liebert STS233
- Figure 13 Seismic Anchor Drawing: 800 - 1000 Amp Liebert STS234
- Figure 14 Electrical Field Connections Drawing: 100 - 250 Amp Liebert STS2 with Single35
- Figure 15 Electrical Field Connections Drawing: 100 - 250 Amp Liebert STS2 with Dual36
- Figure 16 Electrical Field Connections Drawing: 400 - 600 Amp Liebert STS2 with Single37
- Figure 17 Electrical Field Connections Drawing: 400 - 600 Amp Liebert STS2 with Dual38
- Figure 18 Electrical Field Connections Drawing: 800 - 1000 Amp Liebert STS2 with Single39
- Figure 19 Electrical Field Connections: 800 - 1000 Amp Liebert STS2 with Dual Output Breakers40
- Figure 20 Liebert STS2 Non-Automatic Circuit Breaker Schedule41
- Figure 21 Control Connection Location Diagram: 100 - 600 Amp Liebert STS242
- Figure 22 Control Connection Location Diagram: 800 - 1000 Amp Liebert STS243
- Figure 23 Control Wiring for Remote Source Selection Option44
- Figure 24 Control Wiring for the Programmable Relay Board Option45
- Figure 25 Control Wiring for the Input Contact Isolator Board Option46
- Figure 26 Control Wiring for Comms Board47
- Figure 27 Control Wiring for the Liebert Intellislot Web/485 Card with Adapater48
- Figure 28 Control Wiring for the RS-232 Port49
- Front View49
- Figure 29 Outline Drawing for Input Junction Box50
- Power Terminal Block50
- Figure 30 Color LCD Touch Screen Display51
- Figure 31 LED Display52
- Figure 32 Installation Drawing, Seismic Floor Stand 100-250A53
- Figure 33 Installation Drawing, Seismic Floor Stand 100-250A54
- Figure 34 Installation Drawing, Seismic Floor Stand 100-250A55
- Figure 35 Installation Drawing, Seismic Floor Stand 100-250A56
- Figure 36 Installation Drawing, Seismic Floor Stand 400-600A57
- Figure 37 Installation Drawing, Seismic Floor Stand 400-600A58
- Figure 38 Installation Drawing, Seismic Floor Stand 400-600A59
- Figure 39 Installation Drawing, Seismic Floor Stand 400-600A60
- Figure 40 Installation Drawing, Seismic Floor Stand 800-1000A61
- Figure 41 Installation Drawing, Seismic Floor Stand 800-1000A62
- Figure 42 Installation Drawing, Seismic Floor Stand 800-1000A63
- Figure 43 Installation Drawing, Seismic Floor Stand 800-1000A64
8 Introduction to Liebert Sts2 Operations65
- System Description65
- Modes of Operation66
- Operator Controls67
- Figure 44 Liebert STS2 Touch Screen Display67
9 Theory of Operation68
- General Description68
- Detailed Component Description69
10 Operating Instructions for the Touch Screen Interface72
- Normal System Turn-On73
- Figure 45 Liebert STS2 Touch Screen Display73
- Manual Transfer / Preferred Source Selection74
- Figure 46 Source Transfer Screen74
- Enabling Remote Source Selection75
- Maintenance Bypass75
- Normal System Shutdown78
  - 10.5.1 Shutdown in Static Transfer Switch Mode78
  - 10.5.2 Shutdown in Maintenance Bypass Mode78
11 Alarm and Faults79
- Event Mask79
- Event and History Logs80
  - 11.2.1 Event Log80
  - 11.2.2 History Log80
- Alarm Notes81
- List of Messages81
- Table 8 Event Messages82
- C Ommunication I Nterfaces84
- Interfaces84
  - Using the RS-232 Port84
13 Liebert Sts2 Touch Screen Display93
- Display Overview93
- Figure 48 Liebert STS2 Touch Screen Display93
- Menu Overview94
- MIMIC Display96
- Event Controls96
- Event Display96
- Menu Bar96
- Cleaning the LCD Touch Screen110
  - Leds and Buttons and Key Lockout Switch111
  - O Perating the L Iebert Sts2 Led D Isplay111
14 O Lsts2 Led D111
- Perating the111
- Front Panel Controls111
- Figure 62 LED Display111
- LED and Push Button Description112
- Table 15 LED and Push Button Description112
- Event Controls113
- Key Lockout Switch113
- Operations113
15 Specifications119
- System Configuration119
- System Components121
16 Event Message Help Text125
17 Maintenance146
- Proper Tightening of Nuts and Bolts146
- Testing the Liebert STS2146
- Changing the Air Filter146
- Table 24 Torque Tightening146
Support Information147
Programmable Relay Board Settings Record148
Input Contact Isolator Settings150

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Liebert Static Transfer Switch Specifications

General

Brand	Liebert
Model	Static Transfer Switch
Category	Switch
Language	English

Liebert Static Transfer Switch - User Manual

Table of Contents

Liebert Static Transfer Switch Specifications