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Liebert
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Surge Protector
Liebert
100-1000A
user manual
Liebert STS2
Models:
1000A
100-1000A
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Specs
Install
ONE-LINE Diagram
Audible Alarm
Password
Alarm and Faults
Symbol
Power and Control Wiring
Dimension
Maintenance
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Contents
Liebert STS2
Page
Table of Contents
Theory of Operation
Alarm and Faults
Liebert STS2 Touch Screen Display
Communication Interfaces
Event Message Help Text 17.0 Maintenance
Specifications
Figures
Tables
Important Safety Instructions
Overview of Manual
Safety Precautions
Unloading and Handling
External Inspections
Unpacking and Inspections
Handling Considerations
Internal Inspections
Unit Preparation
Operating Temperature Range 0 to 40C 32 to 104F
Recommended Minimum Service Clearances
Heat Output
Operating Environment
Recommended derating for high altitude operation
Altitude
Leveling and Anchoring the Static Switch Using Floor Stand
Leveling of the Static Switch Without Anchoring
Leveling and Anchoring the Unit to the Floor
Locating the Liebert STS2
Power and Control Wiring
Input And Output Power Connections
Input/output conduit plate specifications
Input Junction Box Installation-Optional
Rating Max. number and size
Input junction box terminal wire size range
Input junction box dimensions
Length Width Height Switch Rating Inches mm
Switch Rating Power and Ground Lug Wire Range
System Grounding
Control Wiring Connections
Source MICB1 MICB2 Isolation Transformer
CB4 CB3
Power Supply
Remote Source Selection Wiring
Terminal block 1 and terminal block 2 wire connections
Remote source selection terminal block
Optimized Transfer
Programmable Relay Board
Options
Programmable relay board pinout
Comms Board
Input Contact Isolator Board
Liebert IntelliSlot SNMP/Web/Modbus 485 Card
LED Display
Key Lockout Switch
Remote Source Selection
Redundant Output Breaker
Seismic Floor Anchors
Input Junction Boxes and Cables
Seismic Floor Stand
Detail a
Installation Drawings
Rev
PS211800 Rev
PS211101 Rev
PS211401
PS211801
Liebert STS2
Seismic anchor
STS2
System Seismic ANCHORING, Figure
Front
ONE-LINE Diagram
Rev
Section A-A ONE-LINE Diagram
PS212401
Breaker
Drawing 800 1000 amp Liebert STS2 with
Single output
PS212801
ABB
Liebert STS2 non-automatic circuit breaker schedule
See Option Location Detail
Control connection location diagram 100 600 amp Liebert STS2
Front View with Front Door Removed Option Location Detail
Control Wiring
See Note
J72
J71
J73
J74
Table J51
Control wiring for the input contact isolator board option
02-810015-XX
No customer Connection
Connection
DB-9
No customer
TXD RXD GND
Control wiring for the RS-232 port
Input Junction BOX
Mimic
Description
Symbol
Installation drawing, seismic floor stand 100-250A
Seismic floor stand 100-250A
Installation drawing
Stand 100-250A
Installation drawing, seismic floor
PS215003 Rev
Drawing, seismic floor stand 400-600A
Hardware Torque Chart
Height Table
Seismic floor stand 400-600A
PS216001 Rev
PS216002 Rev
PS216003 Rev
Installation drawing, seismic floor stand 800-1000A
Seismic floor stand 800-1000A
Right Side View
Front Right Isometric View Rear Right Isometric View
Right
Side View
Front View
View
Introduction to Liebert STS2 Operations
System Description
Redundancy
Modes of Operation
Bypass
Operator Controls
Theory of Operation
General Description
Load Current Transfer Inhibit
Emergency Transfer
SCR Failure
7 On/Off Sequence
Controls Operator Interface
Detailed Component Description
Hardware
Firmware
Circuit Breakers
Audible Alarm
SCRs
Logic Modules
Operating Instructions for the Touch Screen Interface
Normal System Startup
Source transfer screen
Manual Transfer / Preferred Source Selection
Enabling Remote Source Selection
Maintenance Bypass
To manually select the preferred source
Touch Screen Viewing Slot for the Source 1 Gate Drive Board
Viewing Slot for the Source 2 Gate Drive Board
To bypass the switch for Source
Bypass Procedures for Source
To return to normal mode
Shutdown in Maintenance Bypass Mode
Shutdown in Static Transfer Switch Mode
Normal System Shutdown
Event Mask
Alarm and Faults
Event Log
Event and History Logs
History Log
List of Messages
Alarm Notes
Event messages
Alarm Message Description/Cause Action
See Configuring the Input Contact Isolator Settings on
Communication Interfaces
Using the RS-232 Port
Terminal commands
Connecting and Using a Terminal
Keys Function
Groups Parameter
Configuring the Liebert STS2 via the Terminal
Item Parameter
Value Parameter
Group settings and values
Value types
Event Mask
User
Options1
Setting Bitpacked Options with the Terminal
Comms Options
Non-Critical Option Enabling
Critical Option Enabling
Binary-hexadecimal conversions
Hex
Putting the Terminal Command Together
Examples of Event Mask Settings
Setting Event Masks with the Terminal
Liebert STS2 Touch Screen Display
Display Overview
Backspace
Menu Overview
Using the Password
Using the Optional Key Lockout Switch
To set or reset the password
Changes disabled Changes enabled
Mimic Display
Configuration Menu
Event Controls
Event Display
To access the User Settings dialog box
User Settings
To set the event masks
Source Set Points
User settings dialog box
Button Range Default Comments
To configure the setpoints for each source
Sepoint parameters
Liebert STS2 Touch Screen Display
To access the System Settings menu
System Settings
Comm Options
Option buttons
To configure the modem
Configuring the Modem
Configuring Pager Support
To configure the Input Contact Isolator relays
Configuring the Input Contact Isolator Settings
Standard settings for programmable relays
Configuring the Programmable Relay Board Settings
Relay Setting Definition
Configuring the Liebert IntelliSlot SNMP/Web/Modbus 485 Card
Saving Your Communications Configurations
Liebert SiteScan Configuration
System Options
Dual Output Breaker
System ID
Pole Transfer Switch
Shunt
Wye Output Transformer
13.11.1Event Log
Logs
13.11.2History Log
To use the Event Log
Bypass Procedure
Startup Procedure
Cleaning the LCD Touch Screen
Source Transfers
Operating the Liebert STS2 LED Display
LEDs and Buttons and Key Lockout Switch
Front Panel Controls
LED and push button description
LED and Push Button Description
Description Action
Cause. See 12.0 Communication Interfaces for PC terminal
Event Controls
Key Lockout Switch
Normal System Startup
Operations
Manual Transfer / Preferred Source Selection
Maintenance Bypass
109
Normal System Shutdown
When the Liebert STS2 is operating on bypass
Specifications
System Configuration
Frequency
Input/Output Voltage
Electrical Requirements
Grounding
Input Surge Suppression
Response Time
Frame and Enclosure
System Components
Casters, Leveling and Seismic Anchoring
Cooling
Cable Entrance
Access
Doors
Color Graphical Display or LED Display
15.2.9 RS-232 Port
Pin Signal Name Function / Comments
Terminal Port Connections
MTA plug pinout
Parameter Setting
RS-232 settings
15.2.11 RS-232 Interface Parameters
Fuseless Design
Key
Event Message Help Text
S1 SCR Short
S2 SCR Short
S2 SCR Open
119
120
S2 Volt Sense Fail
S1 Volt Sense Fail
S1 SCR Sense Fail
S1 Curr Sense Fail
S2 SCR Sense Fail
S2 Curr Sense Fail
S1 Gate Drive Fail
S2 Gate Drive Fail
Heat Sink Overtemp
S1 UV RMS
S1 UV
S1 OV
S1 Fail
S1 OF/UF
S2 UV
S2 OV
S2 UV RMS
S2 UF/OF
S2 Fail
S2 I-PEAK
S1 I-PEAK
130
CB5 S1 BYP Closed
132
133
134
135
136
137
Maintenance
Testing the Liebert STS2
Proper Tightening of Nuts and Bolts
Changing the Air Filter
Support Information
Channel
Programmable Relay Board Settings Record
Channel PRB Notes
Input Contact Isolator Settings Record
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