Liebert PDUTM, Maintenance Manual

Page 1: ...POWER DISTRIBUTION STS2 PDU INSTALLATION OPERATION MAINTENANCE MANUAL 250A 800A Three Phase 60 Hz ...

Page 2: ...orized service For Liebert Global Services to assist you promptly please have the following information available Part numbers _________________________________________________________________ Serial numbers ________________________________________________________________ Rating _______________________________________________________________________ Date purchased _________________________________...

Page 3: ...ly STS2 PDU Without Anchoring 7 4 0 POWER AND CONTROL WIRING 8 4 1 Input and Output Power Connections 8 4 2 System Grounding 11 4 3 Control Wiring Connections 11 4 4 Remote Source Selection Wiring 11 4 5 Power Supply 12 5 0 OUTPUT POWER WIRING 13 5 1 Customer Connections 13 6 0 OPTIONS 14 6 1 Programmable Relay Board 14 6 2 Input Contact Isolator Board 14 6 3 Comms Board 15 6 4 Internal Modem 15 6...

Page 4: ...ailure 73 9 1 7 On Off Sequence 73 9 2 Detailed Component Description 73 9 2 1 Controls 73 9 2 2 Circuit Breakers and Non Automatic Circuit Breakers 74 9 2 3 SCRs 74 9 2 4 Logic Modules 74 9 2 5 Audible Alarm 74 9 2 6 RS 232 Port 74 10 0 OPERATING INSTRUCTIONS 75 10 1 Normal System Turn On 75 10 2 Manual Transfer Preferred Source Selection 76 10 3 Enabling Remote Source Selection 77 10 4 Maintenan...

Page 5: ...4 13 7 6 Logo 114 13 8 Cleaning the LCD Touch Screen 114 14 0 SPECIFICATIONS 115 14 1 System Configuration 115 14 1 1 Frequency 115 14 1 2 Input Voltage 115 14 1 3 Output Voltage 115 14 1 4 System Current Ratings 115 14 1 5 Grounding 115 14 1 6 Electrical Requirements 116 14 1 7 Surge Suppression 116 14 1 8 Response Time 116 14 1 9 Environmental Requirements 116 14 2 System Components 116 14 2 1 F...

Page 6: ...Line distribution 25 Figure 16 Outline drawing 800A STS2 PDU with right side output breaker or I Line distribution 26 Figure 17 Outline drawing 800A STS2 PDU with right side inline distribution 27 Figure 18 Outline drawing 800A STS2 PDU with left side output breaker or I Line distribution 28 Figure 19 Outline drawing 800A STS2 PDU with left side inline distribution 29 Figure 20 Outline drawing 250...

Page 7: ...0 800A STS2 PDU 58 Figure 49 Control location drawing conduit box top entry 400 600A STS2 PDU 59 Figure 50 Control wiring for the programmable relay board option 60 Figure 51 Control wiring for the input contact isolator board option 61 Figure 52 Control wiring for comms board 62 Figure 53 Control wiring for the internal modem option 63 Figure 54 Control wiring for the Network Interface Card NIC o...

Page 8: ...Event messages 85 Table 13 Terminal commands 88 Table 14 Value types 90 Table 15 Group settings and values 91 Table 16 Binary hexadecimal conversions 93 Table 17 Setpoint parameters 102 Table 18 PDU setpoints 104 Table 19 Standard settings for programmable relays 109 Table 20 Input voltage 115 Table 21 Output voltage 115 Table 22 System current ratings 115 Table 23 Electrical requirements 116 Tabl...

Page 9: ...ontains hazardous voltages if any of the input sources are on even when the unit is in bypass To isolate the unit turn off and lock out all input power sources Verify that all input power sources are de energized and locked out before making connections inside unit Lethal voltages exist inside the unit during normal operation Only qualified service personnel should perform maintenance on the STS2 ...

Page 10: ...t to Part 15 Subpart J of the FCC rules and EN550022 These limits provide reasonable protection against harmful interference in a commercial environment This unit generates uses and radiates radio frequency energy and if not installed and used in accordance with this instruction manual may cause harmful interference to radio communications Operation of this unit in a residential area may cause har...

Page 11: ...ets to verify that the model numbers correspond with the one specified Record the model numbers and serial numbers in the front of this installation manual A record of this information is necessary should servicing be required 6 If unit is to be stored before installation it is recommended to store the unit in a dry environment with temperatures in the range of 40 to 176 F 40 to 80 C Use original ...

Page 12: ...s and leveling feet Lift the unit from the rear 5 Conduct an internal inspection of the unit See the list in 1 3 Internal Inspections 1 3 Internal Inspections After the STS2 PDU has been unpacked conduct an internal inspection 1 Verify that all items have been received 2 If spare parts were ordered verify their arrival 3 After the Static Transfer Switch 2 Power Distribution Unit has been removed f...

Page 13: ...e bending space must be provided by a raised floor or a floor stand For dimensions of each unit see Figures 7 through 22 If your unit is equipped with an optional key lockout switch see Figures 13 through 21 for the location of that switch 2 1 Recommended Minimum Service Clearances The recommended service clearances are at the front and side if equipped with output cabinet The minimum service clea...

Page 14: ...emperature for full load operation at altitudes above 4000 feet 1200m Figure 2 Maximum ambient temperature for full load operation at higher altitudes Table 3 Altitude conversion feet to meters Feet Meters 4000 1200 7500 2286 4500 1372 8000 2438 5000 1524 8500 2591 5500 1676 9000 2743 6000 1829 9500 2896 6500 1981 10000 3048 7000 2134 100 98 96 94 92 90 88 86 9000 Rating 10000 9500 8500 8000 7500 ...

Page 15: ...ed to the concrete floor to ensure stability for the unit in the event of seismic activity 3 2 Leveling of the 250A Only STS2 PDU Without Anchoring The 250A Static Transfer Switch 2 Power Distribution Unit is furnished with casters and leveling feet After final positioning of the unit adjust the leveling feet located in each corner of the frame base to level and stabilize the unit For leveling fee...

Page 16: ...bution used Power connections on standard units with an output breaker are made to the busbars inside the unit These busbars are accessible through the front on 250A units and on the side on 400 800A units See Figures 26 through 31 for details on the busbars Power connections on units with panelboard distri bution are made directly to the panelboard breakers Busbars are provided in the output cabi...

Page 17: ...Power and Control Wiring 9 Figure 3 Typical STS2 PDU one line diagram Figure 4 Typical STS2 PDU one line diagram with dual static switch output circuit breakers not available on 250A units ...

Page 18: ...rs The input and output power wire size should be based on the overcurrent protection device observing the NEC and local codes The STS2 PDU output power ground and neutral busbars accommodate a wide range of wire sizes The STS2 PDU busbars accommodate standard two hole lugs Table 4 Input output conduit plate specifications Rating Maximum Number of Conduits Size in 250A 12 2 8 2 1 2 6 3 or 3 1 2 40...

Page 19: ...ement of optional cards 4 4 Remote Source Selection Wiring An optional Remote Source Selection board may be installed in your STS2 PDU This board is installed in the same bay as the communications options See Figures 47 and 48 for the location of these options See Figure 56 for information on the control wiring for the Remote Source Selection option The Remote Source Selection allows you choose th...

Page 20: ...Liebert Global Services or your local Liebert representative Table 6 provides transformer tap information Table 6 Terminal block 1 and terminal block 2 wire connections Voltage Connect Connect Jumper Between F1 TB1 XX F2 TB1 YY F3 TB2 XX F4 TB2 YY 200 1 9 1 9 1 7 220 2 12 2 12 6 8 380 1 8 1 8 2 7 415 1 10 1 10 4 7 600 1 12 1 12 6 7 208 1 10 1 10 1 7 240 1 11 1 11 1 7 400 1 9 1 9 3 7 480 1 11 1 11 ...

Page 21: ... local Liebert representative or call 1 800 LIEBERT The STS2 PDU distribution may be mounted on either the right or left side at the customer s option Location of output conduit connections is affected by the location of the output cabinet See Figures 8 9 12 13 16 and 17 for wiring a right side distribution configuration and Figures 10 11 14 15 18 and 19 for wiring a left side distribution configu...

Page 22: ...t exter nal user alarm or message inputs to be routed through the Static Transfer Switch 2 Power Distribu tion Unit s alarm network The eight contacts are normally open dry contacts When a contact closes an event is triggered The Input Contact Isolator options are configured through the Input Contact Isolator dialog box which is accessed from the Comm Option dialog box on the touch screen display ...

Page 23: ...e STS2 PDU or accept ing incoming calls and connecting to a remote terminal or computer Using an ASCII Query and Answer format the modem connection can be used to view system status and alarms The modem pro vides all information normally available on the LCD of the STS2 PDU No control functions are avail able via the modem such as making transfers selecting a preferred source or changing configura...

Page 24: ...oca tion on each unit See 13 2 1 Security and Figure 65 for instructions on using the key lockout switch 6 8 Static Switch Redundant Output Breaker A plug in non automatic circuit breaker is provided which allows redundancy in the static switch out put power path The breaker is connected in parallel with the static switch output plug in non auto matic circuit breaker 6 9 Inline Panelboards An outp...

Page 25: ...Installation Drawings 17 7 0 INSTALLATION DRAWINGS Figure 7 Outline drawing 250A STS2 PDU ...

Page 26: ...Installation Drawings 18 Figure 8 Outline drawing 250A STS2 PDU with right side I Line distribution ...

Page 27: ...Installation Drawings 19 Figure 9 Outline drawing 250A STS2 PDU with right side inline distribution ...

Page 28: ...Installation Drawings 20 Figure 10 Outline drawing 250A STS2 PDU with left side I Line distribution ...

Page 29: ...Installation Drawings 21 Figure 11 Outline drawing 250A STS2 PDU with left side Inline distribution ...

Page 30: ...Installation Drawings 22 Figure 12 Outline drawing 400 600A STS2 PDU with right side inline distribution ...

Page 31: ...Installation Drawings 23 Figure 13 Outline drawing 400 600A STS2 PDU with right side output breaker or I Line distribution ...

Page 32: ...Installation Drawings 24 Figure 14 Outline drawing 400 600A STS2 PDU with left side inline distribution ...

Page 33: ...Installation Drawings 25 Figure 15 Outline drawing 400 600A STS2 PDU with left side output breaker or I Line distribution ...

Page 34: ...Installation Drawings 26 Figure 16 Outline drawing 800A STS2 PDU with right side output breaker or I Line distribution ...

Page 35: ...Installation Drawings 27 Figure 17 Outline drawing 800A STS2 PDU with right side inline distribution ...

Page 36: ...Installation Drawings 28 Figure 18 Outline drawing 800A STS2 PDU with left side output breaker or I Line distribution ...

Page 37: ...Installation Drawings 29 Figure 19 Outline drawing 800A STS2 PDU with left side inline distribution ...

Page 38: ...Installation Drawings 30 Figure 20 Outline drawing 250A STS2 PDU with key lockout switch option ...

Page 39: ...Installation Drawings 31 Figure 21 Outline drawing 400 600A STS2 PDU inline distribution right side with key lockout switch option ...

Page 40: ...Installation Drawings 32 Figure 22 Outline drawing 800A STS2 PDU inline distribution right side with key lockout switch option ...

Page 41: ...Installation Drawings 33 Figure 23 Electrical field connections 250A STS2 PDU input output with CB8 ...

Page 42: ...Installation Drawings 34 Figure 24 Electrical field connections 250A STS2 PDU input with CB3 ...

Page 43: ...Installation Drawings 35 Figure 25 Electrical field connections 250A STS2 PDU input with CB3 CB3A ...

Page 44: ...Installation Drawings 36 Figure 26 Electrical field connections 400 600A STS2 PDU input with CB3 ...

Page 45: ...Installation Drawings 37 Figure 27 Electrical field connections 400 600A STS2 PDU input with CB3 and CB3A ...

Page 46: ...Installation Drawings 38 Figure 28 Electrical field connections 800A STS2 PDU input with CB3 ...

Page 47: ...Installation Drawings 39 Figure 29 Electrical field connections 800A STS2 PDU input with CB3 and CB3A ...

Page 48: ...Installation Drawings 40 Figure 30 Electrical field connections 250A STS2 PDU output with inline panelboards ...

Page 49: ...Installation Drawings 41 Figure 31 Electrical field connections 400 800A STS2 PDU output with inline panelboards ...

Page 50: ...Installation Drawings 42 Figure 32 Electrical field connections STS2 PDU output with I Line panelboard ...

Page 51: ...Installation Drawings 43 Figure 33 Electrical field connections 400 600A STS2 PDU with right side output breaker ...

Page 52: ...Installation Drawings 44 Figure 34 Electrical field connections 400 600A STS2 PDU with left side output breaker ...

Page 53: ...Installation Drawings 45 Figure 35 Electrical field connections 800A STS2 PDU with right side output breaker ...

Page 54: ...Installation Drawings 46 Figure 36 Electrical field connections 8600A STS2 PDU with left side output breaker ...

Page 55: ...Installation Drawings 47 Figure 37 Electrical field connections 800A STS2 PDU interconnect wiring ...

Page 56: ...Installation Drawings 48 Figure 38 Electrical field connections 800A STS2 PDU interconnect wiring breaker section ...

Page 57: ...Installation Drawings 49 Figure 39 Electrical field connections 800A STS2 PDU interconnect wiring STS section ...

Page 58: ...Installation Drawings 50 Figure 40 Electrical field connections 800A STS2 PDU interconnect wiring left side distribution cabinet ...

Page 59: ...Installation Drawings 51 Figure 41 Electrical field connections 800A STS2 PDU interconnect wiring left side one line ...

Page 60: ...Installation Drawings 52 Figure 42 Electrical field connections 800A STS2 PDU interconnect wiring left side one line with CB3A ...

Page 61: ...Installation Drawings 53 Figure 43 Electrical field connections 800A STS2 PDU interconnect wiring right side one line ...

Page 62: ...Installation Drawings 54 Figure 44 Electrical field connections 800A STS2 PDU interconnect wiring right side one line with CB3A ...

Page 63: ...Installation Drawings 55 Figure 45 Control wiring 800A STS2 PDU left side distribution ...

Page 64: ...Installation Drawings 56 Figure 46 Control wiring 800A STS2 PDU right side distribution ...

Page 65: ...Installation Drawings 57 Figure 47 Control connection location 250A STS2 PDU ...

Page 66: ...Installation Drawings 58 Figure 48 Control connection location 400 800A STS2 PDU ...

Page 67: ...Installation Drawings 59 Figure 49 Control location drawing conduit box top entry 400 600A STS2 PDU ...

Page 68: ...Installation Drawings 60 Figure 50 Control wiring for the programmable relay board option ...

Page 69: ...Installation Drawings 61 Figure 51 Control wiring for the input contact isolator board option ...

Page 70: ...Installation Drawings 62 Figure 52 Control wiring for comms board ...

Page 71: ...Installation Drawings 63 Figure 53 Control wiring for the internal modem option ...

Page 72: ...Installation Drawings 64 Figure 54 Control wiring for the Network Interface Card NIC option ...

Page 73: ...Installation Drawings 65 Figure 55 Control wiring for the RS 232 Port ...

Page 74: ...Installation Drawings 66 Figure 56 Control wiring for remote source selection option ...

Page 75: ...Installation Drawings 67 Figure 57 Color LCD touch screen display ...

Page 76: ...250 800A STS2 PDU Rating STS2 PDU Input Volts Circuit Breakers See One Line Diagrams Vendor Type Ampacity Voltage Interrupting Rating Amps 250A 208V CB8 MERLIN GERIN NJHN 250A 208 240V 100K 400A 208V CB8 MERLIN GERIN NJHN 400A 208 240V 100K 600A 208V CB8 MERLIN GERIN PJD 600A 208 240V 100K 800A 208V CB8 MERLIN GERIN PJD 800A 208 240V 100K Table 11 Non automatic breaker schedule 250 800A STS2 PDU R...

Page 77: ...of the preferred source manual transfer initiation Buttons pro vide for audible alarm silence and reset Through the touch screen specific voltage current and environmental parameters can be configured to trigger events that can sound an alarm write to a history log and either transfer sources or inhibit a transfer Preferred input source selection alarm reset and alarm silencing are done through bu...

Page 78: ...rgize the load All non automatic switches or circuit breakers are the plug in or draw out type to allow replacement without de energizing the load All other com ponents including transformers power cables and connections circuit breaker bases etc are replaceable from the front rear or top of the unit however this requires all power to be removed from the unit for safety All solid state power switc...

Page 79: ...and bypass connec tions Bypass instructions are available from the touch screen and are discussed later in this manual 8 3 Operator Controls The STS2 PDU is equipped with an interface to configure and monitor the unit either locally or remotely The Color Graphical Display is a touch screen LCD that provides a color diagram Mimic that displays the current status of the unit System parameters are di...

Page 80: ...r good source 9 1 2 Source Transfer The STS2 PDU allows manually initiated transfers between the two sources providing the alternate source is within acceptable voltage limits and phase tolerances with the preferred source You begin a manual transfer by selecting the inactive source as the preferred source On a manual transfer the STS2 PDU transfers between the two sources with less than one 1 mil...

Page 81: ...e STS2 PDU automatically triggers an alarm and trips open the other source isolation breaker In the event of a shorted SCR on the other input source the STS2 PDU automatically triggers an alarm and trips open the other source isolation breaker In the event of an open SCR the switch automatically triggers an alarm and transfers the load to the other source All open and shorted SCR alarm conditions ...

Page 82: ...on of the solid state switching devices with an input non automatic breaker for each source and a load isolation non automatic breaker Two non automatic breakers provide for maintenance bypassing of the solid state switching devices to either input source All breakers in the STS2 PDU are plug in types which allows any breaker to be replaced without de energizing the output bus The breakers have an...

Page 83: ...s CB12 and CB13 See Figures 3 through 6 for location of breakers a Retract the bolts on the key interlocks for CB1 and CB2 b Extend the bolts on the key interlocks for CB4 and CB5 thus preventing CB4 or CB5 from being turned ON 2 Apply source input power to both STS2 PDU inputs by closing CB6 and CB7 The touch screen control panel should become active and operate properly when at least one of the ...

Page 84: ... CB8 The output and load are energized 14 If unit is equipped with output inline panelboards close panelboard main breakers CB8 and CB9 and if supplied CB10 and CB11 Turn on panelboard breakers If optional subfeed breakers are supplied close subfeed breakers CB12 and CB13 15 Turn on the load equipment as directed in the load equipment manufacturer s recommendations 10 2 Manual Transfer Preferred S...

Page 85: ...s to the desired source The Mimic is updated to indicate the new preferred source The source is now highlighted with blue and that source is labeled as the preferred source If the Transfer Inhibit message is displayed check for alarm messages on the Active Status window Correct alarm conditions before attempting a source transfer 10 3 Enabling Remote Source Selection If your system is equipped wit...

Page 86: ...input source For convenience instructions for the bypass procedure can be displayed on the touch screen by select ing the BYP PROC option from the menu bar The Mimic is used to verify the status of the unit during the bypass procedures In the unlikely event that the Color Graphical Display is not available open the front door and look through the slots in the control door If you can see green LEDs...

Page 87: ...er from static switch To return to the normal mode 1 Remove the key from CB5 and insert it in the CB1 breaker interlock 2 Rotate key to retract interlock 3 Close source input breaker CB1 4 Verify the Source 1 and CB1 breaker status on the Mimic screen 5 Close output breakers CB3 and CB3A if supplied 6 Verify CB3 and CB3A breaker status and STS SOURCE 1 and OUTPUT boxes are highlighted on the Mimic...

Page 88: ...and CB3A breaker status and STS SOURCE 2 and OUTPUT boxes are highlighted on the Mimic screen 7 Open bypass breaker CB5 8 Rotate the keys in CB5 interlock to extend the interlock 9 Remove the proper key from CB5 interlock and insert it into CB1 breaker interlock 10 Rotate the key to retract the CB1 breaker interlock 11 Close source input breaker CB1 12 Verify the STS SOURCE 1 box and CB1 breaker s...

Page 89: ...ower Distribution Unit is operating on bypass 1 Turn off the load equipment per manufacturer s recommendations 2 Open CB8 or panelboard breakers and main if supplied 3 Open the bypass switch CB4 or CB5 to turn off the static transfer switch output 4 To completely de energize the unit turn open CB6 and CB7 ...

Page 90: ...condition is resolved If an alarm event mask is set to latch the alarm messages remain active until the alarm condition has been corrected and the RESET button is pushed See 11 1 Event Mask for more information on latching When the system is furnished with an optional internal or external modem and a telephone line is connected to the modem the system can be programmed to automatically dial out up...

Page 91: ...frame number The last 512 events are stored in a nonvolatile memory and can be viewed from the Event Log Event logs wrap meaning when the log is full the oldest event is deleted when a new event is written to the log The Event Log tracks the sequence number in which the event occurred since the log was last cleared Message the event that occurred such as Ambient Over temp Source 1 Fail etc Type ei...

Page 92: ...statuses Frozen Not Frozen and Retrieving Data please stand by Critical Event The event which triggered this log to be written The event is indicated in red on the bar graph Frame Number the current frame in the replay A negative number indicates the replay is at a point before the triggering event occurred 11 3 Alarm Notes The I PK on Source 1 and I PK on Source 2 alarms inhibit automatic transfe...

Page 93: ... E 17 S1 CURR SENSE FAIL The Source 1 SCR current module failed D A E 18 S2 CURR SENSE FAIL The Source 2 SCR current module failed D A E 19 S1 GATE DRIVE FAIL The Source 1 gate drive module failed D A E 20 S2 GATE DRIVE FAIL The Source 2 gate drive module failed D A E 21 INTERNAL COMM FAIL Internal CAN communications failed D A E 23 CB1 SHUNT TRIP FAIL CB1 shunt trip failed D A E 24 CB2 SHUNT TRIP...

Page 94: ...t A E 103 LOAD VOLTAGE THD Voltage THD has exceeded the set limit A E 104 INPUT 1 CB6 OPEN Source 1 input Circuit Breaker 6 is open A E 105 INPUT 2 CB7 OPEN Source 2 Input Circuit Breaker 7 is open A E 106 INPUT 1 OF UF Source 1 over frequency under frequency A E 107 INPUT 2 OF UF Source 2 over frequency under frequency A E 120 121 122 123 124 125 126 127 INPUT CONTACT 1 INPUT CONTACT 2 INPUT CONT...

Page 95: ...ional the NIC provides connectivity to any TCP IP based Ethernet network to allow the device to communicate with network management systems NMS via SNMP Events can be transmitted to the NMS to provide remote status monitoring plus fault and alarm detection The NIC includes an RJ 45 port for an Ethernet connection via Category 5 cable The NIC can also integrate the system with an existing Building ...

Page 96: ...l interface is working properly 3 Enter the desired commands as listed in Table 13 For additional help type command or HELP command Refer to the corresponding menu options in 13 0 Touch Screen Display for more details about the commands Some terminal commands require a password to function Use the PWD command and a valid pass word to gain access Table 13 Terminal commands Keys Function Displays th...

Page 97: ...e of configuration For example Event Masks are group 4 and Sys tem Settings are group 2 The numbers shown below are entered for the group parameter For exam ple start of a System Settings command is SPT 2 The group parameters are 1 System Ratings 2 System Settings 3 User Settings 4 Event Mask Settings For example the start of a System Settings command is SPT 2 where SPT is the system setpoints com...

Page 98: ...ings are represented by alphanumeric character strings such as setting the System Model Number to ProductName Enumeratio n This type uses an indexed list to represent possible choices One example is the Modem Baud Rate which uses a value of 0 to select 2400 bps 1 for 9600 bps and 2 for 19200 bps Bit packed This type of value uses a hexadecimal binary word where each of the sixteen bits in the word...

Page 99: ...6 Comms Options 2 Bitpacked See section 12 1 3 Group 3 User Settings 1 SRC1 Fast Undervoltage Setpoint Integer In of nominal below nominal 2 SRC1 Slow Undervoltage Setpoint Integer In of nominal below nominal 3 SRC1 Slow Undervoltage Detect Delay Integer In number of lines cycles 4 SRC1 Overvoltage Setpoint Integer In of nominal above nominal 5 SRC1 Overvoltage Detect Delay Integer In 1 4 lines cy...

Page 100: ...s and features are as follows Options_1 bit0 HasDualOutputBreaker bit1 HasPDU bit2 Has4PoleTransferSwitch bit3 HasShuntTrip bit4 HasWyeOutputXfmr bit5 HasExternalPrecisionTimeSource bit6 HasSFA bit7 HasRemoteSourceSelect bit8 through bit15 not used set to 0 Comms Options 1 bit0 HasIntModem bit1 HasExtModem bit2 HasNIC bit3 not used set to 0 bit4 HasSiteScan bit5 not used set to 0 bit6 not used set...

Page 101: ...creates a binary value for that group For example if the fourth bit in a group is set to 1 the group s binary value is 0001 Each group is translated into a hexadecimal equivalent The group with the value of 0001 has a hex equivalent of 1 You can use Table 16 below to help with the conversion The hex value for each group is entered in the command as four digits To summarize the procedure 1 Set each...

Page 102: ...ns that particular event mask is enabled while a minus sign means that mask is disabled Refer to 11 1 Event Mask for more information on event masks and their associated flags Unlike the System and User Settings mask values are set by designated letters not hex values However as with other RS 232 interface settings four parameters are passed See 12 1 2 Configur ing the STS2 PDU via the Terminal fo...

Page 103: ...and go into the Event Log use SPT 4 12 D E To disable all masks for event 120 INPUT CONTACT 1 use SPT 4 120 D L S E A To breakdown this syntax for the last example SPT SVT command 4 group parameter identifying System Setting group under which the Event Mask settings reside 120 item parameter In this command that is the event ID D L S E A value parameter In this case the minus sign disables all mas...

Page 104: ...n and other system setpoints The touch screen also provides buttons to reset alarms and turn off audible alarms such as a horn 13 1 Display Overview The STS2 PDU Color Graphical Display provides three areas of information plus buttons and a series of menu choices The Color Graphical Display contains the following features Mimic a graphical diagram of the status of the unit Event controls allow you...

Page 105: ...tory to default settings These settings enable the unit to be brought up without the need to enter all selectable parameters The menus allow the set tings to be customized Figure 63 Menus Figure 64 Keyboard and keypad displays NOTE Some menu choices display a keyboard or keypad on the touch screen Enter data on the touch screen Click OK to save the data that you have entered Use the back arrow but...

Page 106: ...thout opening the front door See Figures 20 through 22 for location of the key lockout switch To disable the changes turn the key to the top of the switch toward the closed padlock To enable changes turn the key to the horizontal position toward the open padlock Figure 65 Key lockout switch Using the Password If the unit is not equipped with a keylock a password is required when you attempt to Sav...

Page 107: ...nt Display The Event Display lists the condition of the STS2 PDU in real time Both nominal system parameters and alarm messages are displayed in the Event Display You can touch any message in the Event Dis play to display more information in the Display Panel to the left The selected status is displayed in bold type 13 6 Menu Bar As previously mentioned the menu bar provides both configuration cho...

Page 108: ...rms and Faults for more information on events and 11 1 Event Mask for the definitions of the Event Mask types To set the event masks 1 Access the Event Mask dialog box a Select CONFIG b Select EVENT MASK from the pop up menu The Event Mask dialog box is displayed See Figure 66 2 Select the mask settings for each fault and alarm a Select YES to enable the setting OR b Select NO to disable the setti...

Page 109: ...er voltage meaning the amount of voltage below the nominal voltage OV refers to over voltage or the amount of voltage over the nominal voltage Fast UV Setting if the voltage drops below this set percentage of the nominal voltage the STS2 PDU transfers from the current source to the opposite source Slow UV Setting if the voltage remains this set percentage below the nominal voltage for the period o...

Page 110: ... between the sources and applies to all manual transfers as well as any auto retransfer a Configure this setting with a range of 1 30 degrees The default setting is 15 degrees and the resolution is 1 deg b Select OK to save the setting The setting is now displayed in the adjacent field in the User Settings dialog box Table 17 Setpoint parameters Button Range Default Comments Fast UV Setting 10 to ...

Page 111: ...x is displayed with HI and LO settings This choice sets the brightness for the touch screen a Configure the Contrast and Brightness settings with a range of 1 10 ten b Select OK to save the settings 12 Set the AUTO REXFER ENABLE choice The auto retransfer enable setting determines whether the switch automatically returns the preferred source after that source is restored Select YES to enable the a...

Page 112: ...nd resolution for each parameter System Settings The System Settings choice under the Config menu displays another pop up menu with three choices Comm Options System Options System ID To access the System Settings menu 1 Select CONFIG from the menu bar 2 Select SYSTEM SETTINGS from the Config menu Table 18 PDU setpoints Button Range Default Resolution Load Voltage THD 3 0 to 99 9 15 0 0 1 Neutral ...

Page 113: ...tch 2 Power Distribution Unit Only one modem can be utilized by the STS2 PDU The dialog box contains a series of choices that access either a keypad or a secondary dialog to config ure settings Auto dial can also be configured for the modem to be triggered by events as set up in the Event Mask choices Designated major alarms activate the auto dial modem sequence Automatic dial attempts are made to...

Page 114: ...cent to the Secondary Line choice 9 Select INIT STRING to configure the initialization string This string configures the parameters of the modem This setting only needs to be configured if an external modem is used Check your modem s documentation for this setting The string for the internal modem set by the manufacturer and does not need to be changed 10 Select BAUD RATE to display a dialog with ...

Page 115: ...ct NO to deactivate the dial in feature 13 Configure AUTO DIAL OUT Auto Dial Out allows the STS2 PDU to automatically dial out to a system to notify a user of an event or status a Select YES to activate the dial out feature b Select NO to deactivate the dial out feature 14 Select SAVE to keep the modem configuration settings 15 Select YES in the Comm Options dialog box to activate the settings You...

Page 116: ...d the user entered label This label also appears in the Display Panel when an event related to an Input Isolator Connector is triggered The Input Contact Isolator dialog box allows you to Label the input contact assignments for your setup Set the delay for an external event triggering an alarm Review the isolator contact assignments once the labels are entered The delay allows you to set the numbe...

Page 117: ... are the factory configured settings The STANDARD SET for the programmable relay board settings are The USER DEFINED SET allows you to assign faults and alarms to each contact on the relay boards Utilizing the USER DEFINED SET you can also select Input Contact Isolators to associate with a programmable relay In addition individual events three other assignment choices are available SELECT ALL send...

Page 118: ...d in the Relay column You can associate up to ten 10 events with one relay If you do so you should group the events logically to simplify troubleshooting when an event is triggered 4 Select SAVE to keep the settings 5 Select OK for the applicable Programmable Options Board option in the Comm Options dialog box to activate the settings Configuring the Network Interface Card An optional Liebert Open...

Page 119: ...configurations ensure you have selected YES for all the settings that you want activated 2 Select SAVE to keep the settings Whenever you make modifications to the any of the Comm Options select SAVE to keep the changes System Options Most System Options are configured at the factory However you may need to set two of the choices after the unit is installed Wye Output Transformer and Remote Source ...

Page 120: ...d PDU input breakers have to be closed when you start up the system Based on whether the input side of the PDU transformer is configured as a Wye or Delta changes the firing sequence of the SCRs If the STS2 PDU is connected to a PDU configured as a Wye Select YES for the Wye Output Transformer choice in the System Options dialog box Remote Source Select If your system is configured with the option...

Page 121: ...ect LOGS from the menu bar to open the Logs menu 2 Select EVENT LOG from the menu 3 Use the UP and DOWN buttons to scroll through the event list 4 Select OK to close the Event Log The data remains in the log History Log Two History Logs are available to track major alarms If so configured an alarm freezes the history buffer When the History Status buffer is frozen a History Log is created that can...

Page 122: ...rom the menu bar select STARTUP PROC These instructions are also provided on 10 1 Normal System Turn On 13 7 4 Bypass Procedure You can access instructions for bypassing the Static Transfer Switch 2 Power Distribution Unit from the menu bar From the menu bar select BYP PROC The instructions are provided in the display panel Bypass procedures are also discussed in 10 4 Maintenance Bypass 13 7 5 Hel...

Page 123: ...e shall be within 10 of the nominal voltage The following table provides nominal voltages listed according to frequency 14 1 3 Output Voltage The output voltage shall be three phase AC 4 wire plus ground 14 1 4 System Current Ratings These ratings are based upon continuous switch current rating All units are 100 continuous cur rent rated Some ratings are not available in certain voltages 14 1 5 Gr...

Page 124: ...instructions on configuring these settings 14 1 9 Environmental Requirements See 3 0 Locating The STS2 PDU for details concerning environmental requirements for the STS2 PDU 14 2 System Components All STS2 PDU models provide two isolation transformers connected to a solid state three pole dual position static transfer switch within one enclosure with the ability to transfer between two input sourc...

Page 125: ...vel ing feet for final installation 14 2 3 Cooling The STS2 PDU 250A units utilize convection air cooling for the enclosure with forced air cooling of the heat sinks The 400 800A units are fan cooled using low velocity fans to minimize audible noise All fans are redundant so that a single fan failure cannot cause temperatures to increase beyond acceptable lim its Air intake is through screened pro...

Page 126: ... position Mechanical interlocks are provided on the breakers to prevent improper maintenance bypassing of the solid state switch A bypass breaker cannot be closed unless the solid state switch is connected to the same input source and only one bypass breaker can be closed at a time All breakers are equipped with N O and N C auxiliary switches for monitoring of the breaker positions The two solid s...

Page 127: ...ted non SELV and ESD protected to 15kV air discharge The connector is a 6 Pin MTA plug with connections shown below A DB9 male connector is added and connected parallel to the 6 position header It is configured as DTE Table 26 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 t...

Page 128: ...is in mainte nance bypass See 10 4 Maintenance Bypass for instructions 14 2 13 Fuseless Design All STS2 PDU units are fuseless 14 2 14 Options The following options are available for the STS2 PDU Panelboards Subfeed Breakers K Factor Transformers Surge Suppression System TVSS Redundant Static Switch Output Breaker Programmable Relay Board Comms Board w SiteScan and Modem Interface Internal Modem I...

Page 129: ...rd to turn off the audible alarm This event and the system status surrounding it have been written to a History Log if the History Logs were not already full This event was also written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured S1 SCR OPEN Source 1 SCR Open One or more SCRs on Source 1 is open Transferring between sources has been ...

Page 130: ...nited States contact Liebert Global Services if available in your area For international areas not covered by Liebert Global Services the Liebert authorized distributor can provide technical support Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audib...

Page 131: ...ert authorized distributor can provide technical support Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured I...

Page 132: ...a For international areas not covered by Liebert Global Services the Liebert authorized distributor can provide technical support Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log is so configured The...

Page 133: ...t technical support in the United States call 1 800 LIEBERT 1 800 543 2378 Outside the 48 contigu ous United States contact Liebert Global Services if available in your area For international areas not covered by Liebert Global Services the Liebert authorized distributor can provide technical support This event was written to the Event Log if so configured The alarm has triggered a message to be s...

Page 134: ...f you are accessing the STS2 PDU system from a terminal type CA and press RETURN on your keyboard S2 CURR SENSE FAIL Source 2 Current Sense Failure The module monitoring the current from Source 2 has failed This module is contained on the right side gate driver board Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the STS2 PDU system from a ter...

Page 135: ... Contact technical support in the United States call 1 800 LIEBERT 1 800 543 2378 Outside the 48 contigu ous United States contact Liebert Global Services if available in your area For international areas not covered by Liebert Global Services the Liebert authorized distributor can provide technical support This event was written to the Event Log if so configured The alarm has triggered a message ...

Page 136: ...t already full This event was also written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured INPUT 1 SURGE FAILURE Input 1 Surge Failure Source 1 input surge suppression module has failed Contact technical support in the United States call 1 800 LIEBERT 1 800 543 2378 Outside the 48 contigu ous United States contact Liebert Global Services...

Page 137: ...l voltage as set in the Fast UV setpoint under the User Settings An S1 Fail alarm was also issued and source transfer has been inhibited The load of the STS2 PDU has been transferred to Source 2 Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible a...

Page 138: ...alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard S1 FAIL Source 1 Failure Source 1 has failed due to under voltage UV over voltage OV or from running over or under frequency OF UF This alarm is a companion to S1 UV S1 UV RMS S1 OV and S1 OF UF The load of the STS2 PDU has been transferred to Source 2 Press SILENCE on the touch...

Page 139: ...ay setpoints configured under the User Settings An S2 Fail alarm was also issued and source transfer has been inhibited The load of the STS2 PDU has been transferred to Source 1 Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event w...

Page 140: ...s SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the displa...

Page 141: ... if so configured If you are accessing the STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm This event and the system status surrounding it have been written to a History Log if the History Logs were not already full This event was also written to the Event Log if so configured If this alarm is configured to automatically reset under the setpo...

Page 142: ...his alarm condition assign the alternate source as the preferred source This alarm also is cleared if the unit transfers to the preferred source due to an alternate source AC volt failure i e an emergency transfer Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the STS2 PDU system from a terminal type SH and press RETURN on your keyboard to tur...

Page 143: ... you are accessing the unit from a terminal type CA and press RETURN on your keyboard CB5 S1 BYP CLOSED Circuit Breaker 5 Source 2 Bypass Breaker Closed Circuit breaker 5 is not open The input from Source 2 is bypassing the Static Transfer Switch 2 Power Distribu tion Unit Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the STS2 PDU system from...

Page 144: ...ss RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard S2 PHASE ROT ERROR Source 2 Phase Rotation Error A phase rotation error condition exists on Source 2 Check the phase sequence ABC of Source 2 Transferring to Source 1 has been inhibited Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing ...

Page 145: ... status surrounding it have been written to a History Log if the History Logs were not already full This event was also written to the Event Log if so configured INPUT 1 OVERVOLTAGE Input 1 Overvoltage Source 1 is over voltage Contact technical support in the United States call 1 800 LIEBERT 1 800 543 2378 Outside the 48 contigu ous United States contact Liebert Global Services if available in you...

Page 146: ...n to a History Log if the History Logs were not already full This event was also written to the Event Log if so configured LOAD OVERCURRENT Load Overcurrent Output is over current Contact technical support in the United States call 1 800 LIEBERT 1 800 543 2378 Outside the 48 contigu ous United States contact Liebert Global Services if available in your area For international areas not covered by L...

Page 147: ...ess RETURN on your keyboard to turn off the audible alarm This event was also written to the Event Log if so configured INPUT 1 CB6 OPEN Input 1 CB6 Open Source 1 input Circuit Breaker 6 is open Contact technical support in the United States call 1 800 LIEBERT 1 800 543 2378 Outside the 48 contigu ous United States contact Liebert Global Services if available in your area For international areas n...

Page 148: ...eyboard to turn off the audible alarm This event was also written to the Event Log if so configured INPUT CONTACT 1 Input Contact Isolator 1 Occurrence of the indicated external event has been detected by Input Contact Isolator 1 of the Open Comms Digital Input option board Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the STS2 PDU system fro...

Page 149: ...press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on your keyboard INPUT CONTACT 5 Input Contact Isolator 5 Occurrence of the indicated external event has been detected by Input Contact Isolator 5 of the Open Comms Digital Input option board Press SILENCE on the touch screen to turn off the audible alarm if so configured If you are accessing the STS2...

Page 150: ...he STS2 PDU system from a terminal type SH and press RETURN on your keyboard to turn off the audible alarm The event with its assigned name was written to the Event Log if so configured The alarm has triggered a message to be sent to the modem if so configured If configured to be a latching alarm press RESET on the display If you are accessing the unit from a terminal type CA and press RETURN on y...

Page 151: ...ailable in your area For international areas not covered by Liebert Global Services the Liebert authorized distributor can provide technical support This event was also written to the Event Log if so configured KW HRS COUNTER CLEARED KW HRS counter cleared KW Hrs counter reset to 0 Contact technical support in the United States call 1 800 LIEBERT 1 800 543 2378 Outside the 48 contigu ous United St...

Page 152: ...rce Selection 16 3 Changing the Air Filter A standard furnace filter is installed behind the air intake in the front door The air intake allows air to circulate to cool the unit Replace the filter when it becomes dirty and impedes air flow The fre quency of changing or cleaning the filter depends on the location in which the unit is located The size of the filter is 1 x 25 x 25 in 254 x 635 x 635m...

Page 153: ...p to ten 10 events can be programmed to each channel See 6 1 Programmable Relay Board for more information on the PRB If your STS2 PDU has the PRB option installed list the settings below for future reference If control power is lost in the STS2 PDU the settings are not saved Table 31 Programmable relay board settings record Channel 1 Channel 2 Channel 3 Channel 4 Channel 5 Channel 6 ...

Page 154: ...larm network See 6 2 Input Contact Isolator Board for more information on the ICI If your STS2 PDU has the ICI option installed list the settings below for future reference If control power is lost in the STS2 PDU the settings are not saved Channel 7 Channel 8 Channel 9 Channel 10 PRB Notes Table 32 Input contact isolator settings record Channel 1 Channel 2 Channel 3 Channel 4 Channel 5 Channel 6 ...

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Page 156: ...ity for damages resulting from use of this information or for any errors or omissions 2003 Liebert Corporation All rights reserved throughout the world Specifications subject to change without notice Liebert and the Liebert logo are registered trademarks of Liebert Corporation All names referred to are trademarks or registered trademarks of their respective owners SL 20730 2 04 Rev 0 Technical Sup...