Emerson Static Transfer Switch instruction

						Installation Drawings
Figure 20 Liebert STS2 non-automatic circuit breaker schedule

	Liebert STS2
	Ampere					Withstand
	Rating, A	Vendor	Type	Ampacity, A	Voltage	Current
					200-240V	125K
	100	Square D	HL	150	380-480V	100K
					600V	50K
					200-240V	125K
	250	Square D	JL	250	380-480V	100K
					600V	50K
					200-240V	100K
	400	Merlin Gerin	NSJ	400	380-480V	100K
					600V	25K
					200-240V	100K
	600	Merlin Gerin	NSJ	600	380-480V	100K
					600V	25K
					200-240V	100K
	800	Square D	PJ	800	380-480V	65K
					600V	25K
					200-240V	100K
	1000	Square D	PJ	1200	380-480V	65K
					600V	25K

1.The Liebert STS2 non-automatic breakers are 3-pole, 600VAC rated with magnetic trip only.

2.Upstream devices (by others) must be used to provide overcurrent protection. Upstream overcurrent protection should have ampacity equal to or less than the ampere rating of the static switch.

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Emerson Static Transfer Switch user manual Liebert STS2 non-automatic circuit breaker schedule

Contents

Liebert Static Transfer Switch Page Table of Contents Theory of Operation Alarm and Faults Liebert STS2 Touch Screen Display SpecificationsCommunication Interfaces System Components Event Message Help Text Maintenance Figures Tables Important Safety Instructions Overview of Manual Safety Precautions Unpacking and Inspections External InspectionsUnloading and Handling Unit Preparation Internal InspectionsHandling Considerations Heat Output Recommended Minimum Service ClearancesOperating Environment Location Considerations Recommended derating for high altitude operation Altitude Leveling and Anchoring the Static Switch Using Floor Stand Leveling of the Static Switch Without AnchoringLeveling and Anchoring the Unit to the Floor Locating the Liebert STS2 Power and Control Wiring Input And Output Power Connections Rating Max. number and size Input Junction Box Installation-OptionalInput/output conduit plate specifications Input junction box terminal wire size range Input junction box dimensionsLength Width Height Switch Rating Inches mm Switch Rating Power and Ground Lug Wire Range System Grounding Control Wiring ConnectionsSource MICB1 MICB2 Isolation Transformer CB1 STS1 STS2 CB2 Power Supply Remote Source Selection WiringRemote source selection terminal block Contact Connection Optimized Transfer Programmable Relay BoardOptions Programmable relay board pinout Liebert IntelliSlot Web/485 Card With Adapter Input Contact Isolator BoardComms Board LED Display Key Lockout SwitchRemote Source Selection Redundant Output Breaker Seismic Floor Stand Input Junction Boxes and CablesSeismic Floor Anchors Outline drawing 100 250 amp Liebert STS2 Installation Drawings Rev Outline drawing 800 1000 amp Liebert STS2 PS211101 Rev PS211401 PS211801 Seismic anchor Seismic anchor drawing 400 600 amp Liebert STS2 System Seismic ANCHORING, Figure Front Drawing 100 250 amp Liebert STS2 with single output breaker Electrical field connections Rev Ground BUS INPUT/OUTPUT BUS Front View Right Side View Drawing 400 600 amp Liebert STS2 with single output breaker PS212401 Drawing 800 1000 amp Liebert STS2 with single output Breaker PS212801 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 J71J73 J74 Table J51 Control wiring for the input contact isolator board option 02-810015-XX DB-9J3 TB3 TB3 TXD RXD GND Control wiring for the RS-232 port Input Junction BOX ColorLCD Load touch screendisplay Mimic Description Symbol Installation drawing, seismic floor stand 100-250A Stand Installation PS215002 Rev PS215003 Rev Height Table Hardware Torque Chart PS216001 Rev PS216002 Rev PS216003 Rev Installation drawing, seismic floor stand 800-1000A Drawing 800 Detail a Front Right Isometric View Rear Right Isometric ViewRight Side View Right Side ViewFront View View Redundancy System DescriptionIntroduction to Liebert STS2 Operations Modes of Operation Bypass Operator Controls Theory of Operation General Description Detailed Component Description Firmware HardwareCircuit Breakers SCRs 6 RS-232 Port Audible AlarmLogic Modules Operating Instructions for the Touch Screen Interface Normal System Turn-On Manual Transfer / Preferred Source Selection Settings on To manually select the preferred source Maintenance BypassEnabling Remote Source Selection Touch Screen Viewing Slot for the Source 1 Gate Drive Board Viewing Slot for the Source 2 Gate Drive Board To return to the normal mode Bypass Procedures for SourceTo bypass the switch for Source Shutdown in Maintenance Bypass Mode Shutdown in Static Transfer Switch ModeTo return to normal mode Normal System Shutdown Event Mask Alarm and Faults History Log Event and History LogsEvent 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 Keys Function Connecting and Using a TerminalTerminal commands Groups Parameter Configuring the Liebert STS2 via the TerminalItem Parameter UPMDR? Value types Group settings and valuesValue Parameter Event Mask User Comms Options Setting Bitpacked Options with the TerminalOptions1 Non-Critical Option Enabling Critical Option EnablingBinary-hexadecimal conversions Hex Setting Event Masks with the Terminal Putting the Terminal Command Together Examples of Event Mask Settings Liebert STS2 Touch Screen Display Display Overview Backspace Menu Overview Using the Password Using the Optional Key Lockout SwitchTo set or reset the password Changes disabled Changes enabled Event Controls Mimic DisplayEvent Display Menu bar To set the event masks User SettingsTo access the User Settings dialog box Source Set Points User settings dialog box Sepoint parameters To configure the setpoints for each sourceButton Range Default Comments Liebert STS2 Touch Screen Display To access the System Settings menu System SettingsComm Options Option buttons To configure the modem Configuring the Modem Configuring the Input Contact Isolator Settings Configuring Pager Support Input contact isolator dialog box To configure the Input Contact Isolator relays Relay Setting Definition Configuring the Programmable Relay Board SettingsStandard settings for programmable relays Programmable relay board dialog box Saving Your Communications Configurations Liebert SiteScan ConfigurationSystem Options Dual Output Breaker Shunt Pole Transfer SwitchWye Output Transformer Remote Source Selection To use the Event Log Logs Cleaning the LCD Touch Screen Front Panel Controls LEDs and Buttons and Key Lockout SwitchOperating the Liebert STS2 LED Display LED and push button description LED and Push Button DescriptionDescription Action Cause. See 12.0 Communication Interfaces for PC terminal Operations Key Lockout SwitchEvent Controls Normal System Turn On Manual Transfer / Preferred Source Selection 107 If transfer to Source 2 is not desired Maintenance Bypass If transfer to Source 1 is not desired Normal System Shutdown When the Static Transfer Switch is operating on bypass Specifications System ConfigurationFrequency Input/Output Voltage Electrical Requirements GroundingInput Surge Suppression Response Time Frame and Enclosure System ComponentsCasters, Leveling and Seismic Anchoring Cooling Cable Entrance AccessDoors Color Graphical Display or LED Display 15.2.9 RS-232 Port Pin Signal Name Function / CommentsTerminal Port Connections MTA plug pinout Parameter Setting RS-232 settings15.2.11 RS-232 Interface Parameters Fuseless Design S1 SCR Short Event Message Help TextS2 SCR Short S1 SCR Open S2 SCR Open 119 120 S1 SCR Sense Fail S1 Volt Sense FailS2 Volt Sense Fail S1 Curr Sense Fail S2 SCR Sense FailS2 Curr Sense Fail S1 Gate Drive Fail S2 Gate Drive Fail Heat Sink Overtemp S1 OV S1 UVS1 UV RMS S2 UV S1 OF/UFS1 Fail S2 UF/OF S2 UV RMSS2 OV S2 Fail S2 I-PEAK S1 I-PEAK 130 CB5 S1 BYP Closed 132 133 134 135 136 137 Maintenance Testing the Liebert STS2Proper 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 Page Iti Ne tTi n That