15.2.9 RS-232 Port, Terminal Port Connections | Liebert 1000A

Specifications

15.2.9RS-232 Port

The unit is equipped with an RS-232 port for connecting a terminal or PC. See Figure 28 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 1000VDC isolated (non-SELV) and ESD protected to 15kV air discharge. The connector is a 6 Pin MTA plug with connections shown below.

Table 21 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 22	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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Image 123

Liebert 100-1000A user manual 15.2.9 RS-232 Port, Terminal Port Connections, MTA plug pinout, DB9 pinout

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 External Inspections Unloading and HandlingUnpacking and Inspections Internal Inspections Handling ConsiderationsUnit Preparation Operating Environment Recommended Minimum Service ClearancesOperating Temperature Range 0 to 40C 32 to 104F Heat Output Recommended derating for high altitude operation Altitude Locating the Liebert STS2 Leveling of the Static Switch Without AnchoringLeveling and Anchoring the Static Switch Using Floor Stand Leveling and Anchoring the Unit to the Floor Power and Control Wiring Input And Output Power Connections Input Junction Box Installation-Optional Input/output conduit plate specificationsRating Max. number and size Switch Rating Power and Ground Lug Wire Range Input junction box dimensionsInput junction box terminal wire size range Length Width Height Switch Rating Inches mm CB4 CB3 Control Wiring ConnectionsSystem Grounding Source MICB1 MICB2 Isolation Transformer Remote source selection terminal block Remote Source Selection WiringPower Supply Terminal block 1 and terminal block 2 wire connections Programmable relay board pinout Programmable Relay BoardOptimized Transfer Options Input Contact Isolator Board Comms BoardLiebert IntelliSlot SNMP/Web/Modbus 485 Card Redundant Output Breaker Key Lockout SwitchLED Display Remote Source Selection Input Junction Boxes and Cables Seismic Floor AnchorsSeismic 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 Drawing 800 1000 amp Liebert STS2 with BreakerSingle 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 J74 J71J72 J73 Table J51 Control wiring for the input contact isolator board option 02-810015-XX No customer ConnectionNo customer Connection DB-9 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 Hardware Torque Chart Drawing, seismic floor stand 400-600AHeight 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 View Side ViewRight Front View System Description Introduction to Liebert STS2 OperationsRedundancy Modes of Operation Bypass Operator Controls Theory of Operation General Description 7 On/Off Sequence Emergency TransferLoad Current Transfer Inhibit SCR Failure Firmware Detailed Component DescriptionControls Operator Interface Hardware Logic Modules Audible AlarmCircuit Breakers SCRs Operating Instructions for the Touch Screen Interface Normal System Startup Source transfer screen Manual Transfer / Preferred Source Selection Maintenance Bypass Enabling Remote Source SelectionTo 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 Bypass Procedures for Source To bypass the switch for SourceTo return to normal mode Shutdown in Static Transfer Switch Mode Shutdown in Maintenance Bypass ModeNormal System Shutdown Event Mask Alarm and Faults Event and History Logs Event LogHistory 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 Connecting and Using a Terminal Terminal commandsKeys Function Configuring the Liebert STS2 via the Terminal Groups ParameterItem Parameter Group settings and values Value ParameterValue types Event Mask User Setting Bitpacked Options with the Terminal Options1Comms Options Hex Critical Option EnablingNon-Critical Option Enabling Binary-hexadecimal conversions 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 Changes disabled Changes enabled Using the Optional Key Lockout SwitchUsing the Password To set or reset the password Event Display Configuration MenuMimic Display Event Controls User Settings To access the User Settings dialog boxTo set the event masks Source Set Points User settings dialog box To configure the setpoints for each source Button Range Default CommentsSepoint parameters Liebert STS2 Touch Screen Display Option buttons System SettingsTo access the System Settings menu Comm Options To configure the modem Configuring the Modem Configuring Pager Support To configure the Input Contact Isolator relays Configuring the Input Contact Isolator Settings Configuring the Programmable Relay Board Settings Standard settings for programmable relaysRelay Setting Definition Configuring the Liebert IntelliSlot SNMP/Web/Modbus 485 Card Dual Output Breaker Liebert SiteScan ConfigurationSaving Your Communications Configurations System Options Wye Output Transformer Pole Transfer SwitchSystem ID Shunt To use the Event Log Logs13.11.1Event Log 13.11.2History Log Source Transfers Startup ProcedureBypass Procedure Cleaning the LCD Touch Screen LEDs and Buttons and Key Lockout Switch Operating the Liebert STS2 LED DisplayFront Panel Controls Cause. See 12.0 Communication Interfaces for PC terminal LED and Push Button DescriptionLED and push button description Description Action 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 Input/Output Voltage System ConfigurationSpecifications Frequency Response Time GroundingElectrical Requirements Input Surge Suppression Cooling System ComponentsFrame and Enclosure Casters, Leveling and Seismic Anchoring Color Graphical Display or LED Display AccessCable Entrance Doors MTA plug pinout Pin Signal Name Function / Comments15.2.9 RS-232 Port Terminal Port Connections Fuseless Design RS-232 settingsParameter Setting 15.2.11 RS-232 Interface Parameters S2 SCR Short Event Message Help TextKey S1 SCR Short S2 SCR Open 119 120 S1 Volt Sense Fail S2 Volt Sense FailS1 SCR Sense Fail S1 Gate Drive Fail S2 SCR Sense FailS1 Curr Sense Fail S2 Curr Sense Fail S2 Gate Drive Fail Heat Sink Overtemp S1 UV S1 UV RMSS1 OV S1 OF/UF S1 FailS2 UV S2 UV RMS S2 OVS2 UF/OF S2 Fail S2 I-PEAK S1 I-PEAK 130 CB5 S1 BYP Closed 132 133 134 135 136 137 Changing the Air Filter Testing the Liebert STS2Maintenance Proper Tightening of Nuts and Bolts Support Information Channel Programmable Relay Board Settings Record Channel PRB Notes Input Contact Isolator Settings Record Page Care Ne tIs t Twor k