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Liebert POWER PROTECTION STATIC TRANSFER SWITCH 15.2.9 RS-232 Port, MTA Plug Pinout, DB9 Pinout

Models: POWER PROTECTION STATIC TRANSFER SWITCH

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Specifications

15.2.9RS-232 Port

The unit is equipped with an RS-232 port for connecting a terminal or PC. See Figure 29 for the port’s location.

See 12.1 - Using the RS-232 Port for instructions on using a PC terminal with the unit.

15.2.10Terminal Port Connections

The system has an asynchronous serial port configured as Data Terminal Equipment for terminal access only (half duplex). The CPU services the terminal port with no handshaking. The serial port conforms to RS-232 levels with a data format of 9600 Baud, 1 start bit, 8 data bits, and no parity bits. The serial port is 1000 Volt DC isolated (non-SELV) and ESD protected to 15kV air discharge. The connector is a 6 Pin MTA plug with connections shown below.

Table 22 MTA Plug Pinout

Pin	Signal Name	Function / Comments

1	ISO_GND	Isolated service terminal ground

2	ISO_TXD	Isolated service terminal transmit output

3	ISO_RXD	Isolated service terminal receive input

4	NC	No Connection

5	NC	No Connection

6	NC	No Connection

A DB9 male connector is added and connected parallel to the 6 position header. It is configured as DTE.

Table 23	DB9 Pinout

Pin		Signal Name	Function / Comments

1		NC	No Connection

2		ISO_RXD	Isolated service terminal transmit output

3		ISO_TXD	Isolated service terminal receive input

4		NC	No Connection

5		ISO_GND	Isolated service terminal ground

6		NC	No Connection

7		NC	No Connection

8		NC	No Connection

9		NC	No Connection

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Liebert POWER PROTECTION STATIC TRANSFER SWITCH 15.2.9 RS-232 Port, 15.2.10Terminal Port Connections, MTA Plug Pinout

Contents

Static Transfer Switch Power ProtectionPage Table of Contents Operating Instructions for the Touch Screen Interface Alarm and FaultsTheory of Operation Operating the LED Display STS2 Communication Interfaces13.0 STS2 Touch Screen Display Specifications Event Message Help Text 17.0 Maintenance Figures Tables Important Safety Instructions Overview of Manual Safety Precautions Unpacking and Inspections External InspectionsUnloading and Handling Unit Preparation Internal InspectionsHandling Considerations Operating Environment Recommended Minimum Service ClearancesHeat Output Location Considerations Rating Ambient Temperature MaxAltitude Altitude Feet Above Sea Level Leveling and Anchoring the Unit to the Floor Leveling of the Static Switch Without AnchoringLeveling and Anchoring the Static Switch Using Floor Stand Locating the STS2 Input And Output Power Connections Power and Control Wiring Input junction box dimensions Input Junction Box Installation OptionalInput/output conduit plate specifications Input junction box terminal wire size range Control Wiring Connections System Grounding Remote source selection terminal block Remote Source Selection WiringPower Supply Contact Connection Options Programmable Relay BoardOptimized Transfer Programmable relay board pinout Internal Modem Input Contact Isolator BoardComms Board LED Display Key Lockout SwitchNetwork Interface Card NIC Remote Source Selection Seismic Floor Stand Input Junction Boxes and CablesSeismic Floor Anchors Drawing 100 250 amp STS2 Static Transfer SwitchDrawings Detail a Side View Amp STS2 Outline drawing 800 Front View Side View Switch option 400 600 AMP with KEY Lockout Switch Option Key lockout switch option Amp STS2 with Seismic anchor Drawing 100 250 amp STS2 Seismic anchor drawing 400 600 amp STS2 Front System Seismic ANCHORING, Figure Electrical field connections Drawing 100 250 amp STS2 with single output breaker 100 250 amp STS2 with dual output breakers Electrical field connections drawing Drawing 400 600 amp STS2 with single output breaker Ground BUS INPUT/OUTPUT BUS Front View Right Side View Drawing 400 600 amp STS2 with dual output breakers Electrical field connections Drawing 800 1000 amp STS2 with single output breaker PS212801 Rev Static Transfer Switch 2, Molded Case Breaker Schedule Control connection location diagram 100 600 amp STS2 See Option Location Detail Control connection location diagram 800 1000 amp STS2 Front View with Front Door Removed Option Location Detail Selection option WiringFor Source J73 J71J72 J74 3 4 5 6 7 8 9 10 1112 13 14 15 No Customer Connection See Detail B For internal modem wiringSitescan J1A Detail a RJ-11 Connector J1A See Detail a Control wiring for the network interface card NIC option TB2 Control wiring for the RS-232 port LCD Display For input junction box Input Junction BOX Screen ColorTouch Display LED display Installation drawing, seismic floor stand 100-250A Installation Stand PS215002 Rev PS215003 Rev Hardware Torque Chart Height Table PS216001 Rev PS216002 Rev PS216003 Rev Installation drawing, seismic floor 800 Drawing TOP View of Floor Stand With Lower Rear Mounting Bracket Front Right Isometric View Rear Right Isometric View Right Side View Front View Side ViewRight View Redundancy System DescriptionIntroduction to STS2 Operations Modes of Operation Operator Controls Bypass General Description Theory of Operation Detailed Component Description Circuit Breakers HardwareFirmware SCRs 6 RS-232 Port Audible AlarmLogic Modules Operating Instructions for the Touch Screen Interface Normal System Turn-On Settings on Manual Transfer / Preferred Source Selection To manually select the preferred source Maintenance BypassEnabling Remote Source Selection Viewing Slot for the Source 2 Gate Drive Board Touch Screen Viewing Slot for the Source 1 Gate Drive Board To return to the normal mode Bypass Procedures for SourceTo bypass the switch for Source To return to normal mode Shutdown in Static Transfer Switch ModeShutdown in Maintenance Bypass Mode Normal System Shutdown Alarm and Faults Event Mask History Log Event and History LogsEvent Log Alarm Notes Event Messages Alarm Message Description/Cause ActionList of Messages See Configuring the Input Contact Isolator Settings on Using the RS-232 Port Communication Interfaces Keys Function Connecting and Using a TerminalTerminal Commands Item Parameter Configuring the STS2 via the TerminalGroups Parameter Value types Group settings and valuesValue Parameter User Event Mask Comms Options Setting Bitpacked Options with the TerminalOptions1 Binary-Hexadecimal Conversions Critical Option EnablingNon-Critical Option Enab Hex Putting the Terminal Command Together Setting Event Masks with the Terminal Examples of Event Mask Settings Display Overview 13.0 STS2 Touch Screen Display Menu Overview Backspace To set or reset the password Using the Optional Key Lockout SwitchUsing the Password Changes disabled Changes enabled Event Display Mimic DisplayEvent Controls Menu bar To set the event masks User SettingsTo access the User Settings dialog box User settings dialog box Source Set Points Set Point Parameters To configure the set points for each sourceButton Range Default Comments STS2 Touch Screen Display Comm Options System SettingsTo access the System Settings menu Option buttons Configuring the Modem To configure the modem Configuring Pager Support Configuring the Input Contact Isolator Settings To configure the Input Contact Isolator relays Input contact isolator dialog box Relay Setting Definition Configuring the Programmable Relay Board SettingsStandard Settings for Programmable Relays Configuring the Network Interface Card If the optional OpenComm NIC is installed in the STS2 System Options SiteScan ConfigurationSaving Your Communications Configurations Dual Output Breaker Wye Output Transformer Pole Transfer SwitchShunt Remote Source Selection Logs To use the Event Log Cleaning the LCD Touch Screen Front Panel Controls LEDs and Buttons and Key Lockout SwitchOperating the LED Display STS2 LED and push button description SymbolLED and push button description Description Action Event Controls Key Lockout SwitchOperations Normal System Turn-On Manual Transfer / Preferred Source Selection Maintenance Bypass If transfer to Source 2 is not desired If transfer to Source 1 is not desired When the Static Transfer Switch is operating on bypass Normal System Shutdown Frequency System ConfigurationSpecifications Input/Output Voltage Input Surge Suppression GroundingElectrical Requirements Response Time Castors, Leveling and Seismic Anchoring System ComponentsFrame and Enclosure Cooling Doors AccessCable Entrance Color Graphical Display or LED Display 15.2.10Terminal Port Connections Pin Signal Name Function / Comments15.2.9 RS-232 Port MTA Plug Pinout 15.2.11RS-232 Interface Parameters 15.2.12Maintenance BypassRS-232 Settings 15.2.13Fuseless Design S2 SCR Short Event Message Help TextS1 SCR Short S1 SCR Open S2 SCR Open 118 119 S1 Volt Sense Fail S2 Volt Sense Fail S1 Gate Drive Fail S1 Curr Sense FailS2 Curr Sense 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 S1 I-PEAK S2 I-PEAK 129 CB5 S1 BYP Closed S1 Phase ROT Error S2 Phase ROT Error 132 133 134 135 136 Proper Tightening of Nuts and Bolts Testing the STS2Maintenance Changing the Air Filter Support Information Programmable Relay Board Settings Record Channel Channel PRB Notes Input Contact Isolator Settings Record Maintenance 142 Page Locations Technical Support/ServiceCompany Behind the Products United States