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28 94-1100-00002874 A0 EN│TruFit™ Power Distribution Unit

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4

Alarms and Events

All referenced voltages and currents are based on the standard 480 -208/120V units. See as built
documents and/or unit nameplate for unit specific voltages.

4.1

Overview

Alarms and events are conveyed to the user through the Display Module’s graphical user interface and
audible alarm.  Alarm and warning threshold levels are configured in the installed PowerView metering
module.  PowerView will monitor various voltages & currents in a power distribution panel, will also
compute various other parameters such as power, energy, demand, frequency, power factor, etc.  Finally,
PowerView provides the Modbus connection to interface with a building management system.

4.2

Product description

The PowerView metering module will acquire the voltage & current signals from an analog signal
conditioning board. It will calculate energy and power quality parameters. These parameters are passed
to the display board/PC for display and data logging. It will also receive control/command/system
parameter data from display board or a third-party display module.

4.3

Event Log and alarm/warning

4.3.1

Overview

System events are logged in the Event Log. Each event contains the following attributes:

1.

Timestamp

2.

Severity of event ( Information, Warning, Alarm).

3.

Active state ( )

4.

Acknowledgement state ( )

5.

Event description

Some events remain active in the Event Log if the event status is true.  The event becomes
inactive only when the condition is cleared.  For example, an event triggered by a metered value
that exceeds a high limit will remain active until that metered value falls back below the high limit.

Some alarm/warning events also require acknowledgement from the user after they become
inactive. This will be discussed below. Other types of alarm/warning events do not require
acknowledgement.

4.3.2

Viewing events

The events can be viewed in the Event Log by clicking the Event icon

.

The Event Log displays the number of active events.

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Содержание TruFit

Страница 1: ...on the market today with almost unlimited configurations of panelboards and sub feed breakers to meet every load requirement One cabinet design supports ratings up to 300kVA For a comprehensive overview of publications available for the ABB TruFit PDU product line refer to the inside cover of this publication Web link and QR code references are also included ...

Страница 2: ...mance ABB s products result from over 100 years of experience combined with a continuous program of innovative design and development to incorporate the latest technology Quality control To ensure that we meet our responsibilities and obligations to our customers our people our partners our suppliers and to our shareholders we are committed to deliver on time and on quality products systems and se...

Страница 3: ... plans and service contracts For repair or maintenance service outside the 48 contiguous United States contact ABB if available in your area Please provide the following information for customer service when you contact the ABB service center Equipment Part number Serial number Voltage rating Current rating Purchase date Installation date Location To get important information on all equipment warr...

Страница 4: ...ating the PDU Adhere to all warnings on the unit and in this manual 1 1 1 List of symbols These symbols may appear on your PDU or on labels inside the PDU Most international safety agents accept them Everyone in your organization who works with your system should understand the meaning of these symbols SAFETY ALERT SYMBOL This is the safety alert symbol It is used to alert you to potential physica...

Страница 5: ...ust be performed by a manufacturer s qualified technicians or a certified service partner General Move the PDU in an upright position in its original package to the final destination room To lift the cabinets use a forklift or lifting belts with spreader bars Check for sufficient floor and elevator loading capacity Check the integrity of the PDU equipment carefully If you notice visible damage do ...

Страница 6: ...ts and protected against animal intrusion WARNING HIGH LEAKAGE CURRENT TO GROUND Ground connection is essential before connecting to AC input Switching OFF the Unit does not isolate the PDU from the Utility Do not install the PDU in an excessively humid environment or near water Avoid spilling liquids on or dropping any foreign object into the PDU The Unit must be placed in a sufficiently ventilat...

Страница 7: ...otection is to be supplied by the user in accordance with nameplate ratings in applications where the PDU has no main breaker 1 4 Safety considerations The TruFit PDU is designed for commercial applications and should be handled with appropriate care following these guidelines Keep surroundings clean and free from excess moisture Do not operate the PDU system close to gas or electric heat sources ...

Страница 8: ...rity 18 3 3 1 Login and logout 18 3 4 System setup 20 3 4 1 Network Settings screen 20 3 4 2 Protocol Settings screen 21 3 4 3 Email Settings screen 23 3 4 4 General Settings screen 24 3 4 5 Display Settings screen 25 3 4 6 Information screen 26 3 4 7 User Interface Board UIB 27 4 Alarms and Events 28 4 1 Overview 28 4 2 Product description 28 4 3 Event Log and alarm warning 28 4 3 1 Overview 28 4...

Страница 9: ...t status screens 54 5 6 Setting alarm warning limits and ratings 56 5 6 1 PDU configuration settings 57 5 6 2 Panel configuration settings 60 5 6 3 Branch configuration settings 63 5 6 4 Sub feed configuration settings 67 5 6 5 Thermocouple configuration settings 69 6 Specifications 70 6 1 Standards 70 6 2 Electrical characteristics 71 6 3 Environmental characteristics 71 7 System maintenance 72 7...

Страница 10: ...rning filters enabled 31 Figure 4 7 Event screen showing the filter criteria 32 Figure 5 1 Metering Overview screen 35 Figure 5 2 PDU Graphical screen Output side 36 Figure 5 3 PDU Graphical screen Input side 36 Figure 5 4 PDU Tabular screens 37 Figure 5 5 PDU Thermal screen 38 Figure 5 6 PDU Waveform Capture screen 38 Figure 5 7 PDU Waveform Capture Save screen 39 Figure 5 8 Panel and Branch Main...

Страница 11: ...menu options with Settings icon 63 Figure 5 44 Branch Alarm Limits screen 1 pole 63 Figure 5 45 Branch Alarm Limits screen 2 or 3 pole 63 Figure 5 46 Branch Duration Settings screen 1 pole 64 Figure 5 47 Branch Duration Settings screen 2 or 3 pole 64 Figure 5 48 Branch Ratings screen 1 pole 65 Figure 5 49 Branch Ratings screen 2 or 3 pole 65 Figure 5 50 Branch Parameter Reset screen 1 pole 66 Figu...

Страница 12: ...ind of security breaches unauthorized access interference intrusion leakage and or theft of data or information ABB Ltd and its affiliates are not liable for damages and or losses related to such security breaches any unauthorized access interference intrusion leakage and or theft of data or information We recommend connecting the system in private network if not the case additional hardware that ...

Страница 13: ...ircuit breaker 3 Energize the TruFit product by turning the system s main input circuit breaker to the ON position 4 Next the output voltages from the system should be verified Identify the output voltage of the transformer by using a true RMS digital volt meter If the output voltage of the transformer is not the desired voltage access the system s 2 1 2 compensation taps Compensation tap configur...

Страница 14: ...The GUI display control panel is surrounded by a ring light which displays green yellow or red depending on operating status and active alarms as described in Section 4 3 Each PDU unit has a User Interface Board UIB which is provided for the user s connections External monitoring systems e g Building Management Systems can be used to poll the PDU units using Modbus RTU on an RS 485 bus or Modbus T...

Страница 15: ...ay Module is also surrounded by a ring light whose color will change depending on the alarm or warning that is currently in need of attention Details on alarms and warning are described in Section 4 USB DEVICE is configured as the Service Port DISPLAY WITH RING LIGHT USB HOST USB DEVICE Figure 3 2 Display module Front view as mounted on door EPO ...

Страница 16: ...16 94 1100 00002874 A0 EN TruFit Power Distribution Unit Figure 3 3 Display module Rear view ...

Страница 17: ...IGURATIONS WAVEFORMS TABLEVIEW SETTINGS GRAPHICAL WAVEFORM BRANCH METERING SUBFEED INPUT SENSORS SLOT SERVICE INFO HELP TABLEVIEW THERMAL VIEW SETTINGS GRAPHICAL WAVEFORM TABLEVIEW SETTINGS GRAPHICAL WAVEFORM TEMPERATURE CONFIGURATIONS DIGITAL INPUT THERMAL SCREENS REGISTERS VIEWS REPORT UPGRADE RESET NETWORK PROTOCOL EMAIL GENERAL DISPLAY SYSTEM SOFTWARE LOGIN LOGOUT MANAGE PASSWORD LEVEL 1 LEVEL...

Страница 18: ... 4 Security Login screen Select the proper User Name from the pull down list Click Enter Password for the keyboard to appear as shown below Click the letters to enter the password then click the keyboard icon in the lower right to close the keyboard Click the blue Login button to complete login Figure 3 5 Password Keyboard This will login the user to the appropriate security level ...

Страница 19: ...omatically navigate to the home screen To logout select Logout Once the user logs out the screen will automatically navigate to the Home screen and the items in the menus for opening these windows will be hidden for security purposes Each login name can change their own password We recommend changing the passwords immediately after initial system installation A login table has been inserted in thi...

Страница 20: ... unit as shown below The user must be logged in as admin or higher to access the items under Settings Figure 3 6 The Settings submenu 3 4 1 Network Settings screen The Network Settings screen is used to configure the IP gateways subnet address of the system Figure 3 7 Network Settings screen Dynamic Figure 3 8 Network Settings screen Static ...

Страница 21: ...ocol Settings screen 3 4 2 1 Modbus TCP configuration Figure 3 10 Modbus TCP configuration Modbus TCP can be configured from this tile The on off toggle slider is used to enable disable this feature IP1 IP2 are the IP address of the polling device o If IP1 IP2 are 0 0 0 0 any device can poll o If either IP1 IP2 is set only the IP address that is entered can poll the unit ego If IP1 is 192 168 5 4 ...

Страница 22: ...gured from 1 250 Baud rates can be configured as 9600 19200 38400 57600 Parity can be configured as None Even Odd Stop bit can be set to 1 or 2 3 4 2 3 Secured Shell Figure 3 12 Secure Shell configuration card The Secure Shell SSH service can be enabled disabled via the toggle button 3 4 2 4 TFTP Server Address Figure 3 13 TFTP Server configuration tile The TFTP server can be configured in the abo...

Страница 23: ...ibution Unit 94 1100 00002874 A0 EN 23 3 4 3 Email Settings screen The Email Settings screen is used to configure the system email parameters e g Email server Port Email address Content Figure 3 14 Email Settings screen ...

Страница 24: ...en The following parameters can be configured in this screen They can be changed by clicking on the parameter to enable editing Date Time 1 Time 2 Date 3 Time Zone 4 NTP System Settings 1 Audible Alarm 2 Security 3 Manual Restart 4 Temperature Scale Figure 3 15 General Settings screen ...

Страница 25: ... disabled by the on off toggle button When screen saver is enabled the system turns off the backlight and logs off the user after the number of minutes entered for Timeout When the screen saver is disabled the user will not be automatically logged out of the system The screen saver setting is retained through power down up cycles The screen contrast is also set via this screen Figure 3 16 Display ...

Страница 26: ...e location installation last serviced information 3 4 6 2 System software information Figure 3 18 System Software screen The System software information is shown above This screen contains all the software versions of the meter modules display modules Note that the versions shown in Figure 3 18 may not be the most recent or what is loaded on your unit Software upgrades can only be performed by aut...

Страница 27: ...The number of slots displayed will depend on whether the unit has a 2 slot or 6 slot PowerView system Daughter card additions or changes can only be performed by authorized ABB service personnel Contact ABB if there is interest in upgrading the PowerView system 3 4 7 User Interface Board UIB The User Interface Board UIB provides an interface for connecting the PDU to external monitoring and contro...

Страница 28: ...and power quality parameters These parameters are passed to the display board PC for display and data logging It will also receive control command system parameter data from display board or a third party display module 4 3 Event Log and alarm warning 4 3 1 Overview System events are logged in the Event Log Each event contains the following attributes 1 Timestamp 2 Severity of event Information Wa...

Страница 29: ...f the events 4 3 3 Acknowledging events The Ack all button is to acknowledge all the events in the Event Log An example screenshot of the Event Log when Ack all is clicked is shown below Once the Ack all event is pressed the buzzer stops and unacknowledged event sign goes away Warning Active Timestamp Description Figure 4 2 Event Log with active warning ...

Страница 30: ...30 94 1100 00002874 A0 EN TruFit Power Distribution Unit Figure 4 4 Event Ack all is pressed Figure 4 3 Event Log with active alarm un acknowledged Alarm Active Un Acknowledge Timestamp Description ...

Страница 31: ...Log After selecting the filter criteria and clicking the Apply button the filtered list of events will appear in the Event Log and the filter criteria will appear at the top of the Event Log The filters can be cleared by clicking on the filter criteria on the top of the Events Log or by clicking the Clear Filter button in the Filters window Figure 4 5 Event Filters window Figure 4 6 Event screen w...

Страница 32: ...he ring light will automatically change from red to green if a warning condition disappears and there are no other active alarms or warnings present See Display Module section for detailed location of ring light 4 3 5 2 The audible alarm When logged in as admin or higher the user can enable or disable the audible alarm as mentioned in Section 3 4 4 When using this method the new setting is permane...

Страница 33: ...re one or more alarm warning events in the log that require acknowledgement The Unacknowledged Events contacts should be in the alarm state when the audible alarm is sounding See the caveats about the audible alarm above in Section 4 3 5 Also note that disabling the audible alarm does not disable the Unacknowledged Events contacts Note that both sets of alarm contacts will be in the normal state i...

Страница 34: ...or thermocouple inputs if so equipped These parameters are passed to the display board PC for display and data logging It will also receive control command system parameter data from display board or a third party display module 5 3 Features The following are standard features of distribution products equipped with PowerView 1 Thermal shutdown shunts trip input breaker when goes past acceptable th...

Страница 35: ...t have transformers so that that icon will not be available Events associated with the displayed screen are shown with triangles Information Warning Alarm Event details can be accessed by clicking on the triangle icons For more information on events and alarms see Section 4 Figure 5 1 Metering Overview screen 5 5 2 PDU metering 5 5 2 1 PDU graphical view When the user clicks the Metering Overview ...

Страница 36: ...36 94 1100 00002874 A0 EN TruFit Power Distribution Unit Figure 5 2 PDU Graphical screen Output side Figure 5 3 PDU Graphical screen Input side ...

Страница 37: ...ng metering information regarding voltage current frequency and power Click the blue arrows to move through the screens The transformer icon continues to identify whether the metering information is from the input or output side Min and Max values are since the last reset Averages are over the duration noted in the settings Changing settings and resetting values requires ADMIN access Figure 5 4 PD...

Страница 38: ...tion regarding the internal PCA s and the main transformer Figure 5 5 PDU Thermal screen 5 5 2 4 PDU Waveform screen Select the waveform icon to view waveform from the main transformer s primary or secondary side captured at the instant of selection Pressing the will update to a new waveform capture Figure 5 6 PDU Waveform Capture screen ...

Страница 39: ...Waveform Capture Save screen 5 5 3 Panel and Branch Metering screens 5 5 3 1 Panel and Branch Main screens When the user clicks one of the Overview screen s panel icons the Panel Main screen for that panel opens The Panel Mains screen shows an overview of the prevailing voltage current and load conditions for that panel as noted in the upper left corner Figure 5 8 Panel and Branch Main screen ...

Страница 40: ...Panel Meter or Panel Load information on the Main screen takes the user to the Panel Graphical screen Prevailing voltage load and harmonics information for that panel is displayed in bar graphs Clicking the icon on the Panel Tabular view returns the user to this screen Figure 5 9 Panel Graphical screen ...

Страница 41: ... regarding voltage current frequency and power for the panel noted in the upper left corner Click the blue arrows to move through the screens Min and Max values are since the last reset Averages are over the duration noted in the settings Changing settings and resetting values requires ADMIN access Figure 5 10 Panel Tabular screens ...

Страница 42: ...eform from the noted panel captured at the instant of selection Pressing the will update to a new waveform capture Figure 5 11 Panel Waveform Capture screen A waveform capture can be saved to an output drive by pressing and selecting as shown below Output file is in csv format Figure 5 12 Panel Waveform Capture Save screen ...

Страница 43: ...orner as shown by Branch 1 in Figure 5 13 Prevailing current and power information for that branch is shown 5 5 3 2 1 Branches with 1 pole breakers PowerView can display 42 or 84 position panels as shown in Figure 5 13 Branches are displayed in groups of 14 To select another group click on that group along the left part of the screen To select another branch click on the breaker icon for that bran...

Страница 44: ...with 2 pole breakers Four screens show present metering information regarding voltage current frequency and power for the branch with 2 pole breaker noted in the upper left corner Click the blue arrows to move through the screens Figure 5 14 Branch status screens 2 pole breaker ...

Страница 45: ...with 3 pole breakers Four screens show present metering information regarding voltage current frequency and power for the branch with 3 pole breaker noted in the upper left corner Click the blue arrows to move through the screens Figure 5 15 Branch status screens 3 pole breaker ...

Страница 46: ...form screens Select the waveform icon to view waveform from the noted branch captured at the instant of selection Pressing the will update to a new waveform capture Figure 5 16 Branch Waveform Capture screen 1 pole breaker Figure 5 17 Branch Waveform Capture screen 2 pole breaker ...

Страница 47: ...002874 A0 EN 47 Figure 5 18 Branch Waveform Capture screen 3 pole breaker A waveform capture can be saved to an output drive by pressing and selecting as shown below Output file is in csv format Figure 5 19 Branch Waveform Capture Save screen ...

Страница 48: ...Sub feed Metering screens 5 5 4 1 Sub feed Graphical View When the user clicks one of the sub feed icons on the Metering Overview screen the Sub feed Graphical screen for that sub feed opens showing metering in bar graph format Figure 5 20 Sub feed Graphical screen ...

Страница 49: ...regarding voltage current frequency and power for the panel noted in the upper left corner Click the blue arrows to move through the screens Min and Max values are since the last reset Averages are over the duration noted in the settings Changing settings and resetting values requires ADMIN access Figure 5 21 Sub feed Tabular screens ...

Страница 50: ...m from the noted sub feed captured at the instant of selection Pressing the will update to a new waveform capture Figure 5 22 Sub feed Waveform Capture screen A waveform capture can be saved to an output drive by pressing and selecting as shown below Output file is in csv format Figure 5 23 Sub feed Waveform Capture Save screen ...

Страница 51: ...panels or branches Groups are created during configuration When custom groups have been configured the Metering Overview screen has the Groups icon shown below in Figure 5 24 Figure 5 24 Metering Overview screen with groups Clicking on the icon opens the screen with all custom groups as shown in Figure 5 25 Figure 5 25 Groups of Meters screen GROUPS ...

Страница 52: ...umber of included meters as shown in Figure 5 26 or Figure 5 27 Figure 5 26 Custom Group screen Branches and Panels Figure 5 27 Custom Group screen Sub feeds Clicking on an icon takes the operator to a view of the included sub feed branches or panels Click on a specific branch or panel to display the metering information as described in Section 5 5 2 5 5 3 or 5 5 4 ...

Страница 53: ...TruFit Power Distribution Unit 94 1100 00002874 A0 EN 53 Figure 5 28 Meters in a Custom Group screen ...

Страница 54: ...ew the Input Icon will display in the main menu By clicking on the Input icon the Input Status screen will be shown 5 5 6 1 Input screen This screen displays a table of each input sensor and its status Status is typically open or closed Clicking on the icon returns to the input sensor screen Click the blue arrows to move through the screens Figure 5 29 Input Status screen ...

Страница 55: ... temperature since the last system reset and its status Status is compared to the alert and warning temperatures from the settings discussed in Section 5 6 5 Please contact ABB service for more information regarding system reset Click the blue arrows to move through the screens Figure 5 30 Thermocouple Input Screen 5 5 6 3 Registers screen By clicking on the Register icon the Input Register screen...

Страница 56: ...ges In some cases the GUI may not limit you from making unwise changes that could cause the equipment to malfunction The settings pages can be configured viewed by navigating to the panel through the settings icon Any value on a settings screen that is blue can be changed To change a value click on that value A keyboard sub window will open as shown in Figure 5 32 Click on the numerals or letters ...

Страница 57: ...with USER access Figure 5 33 PDU s submenu options with Settings icon Click the blue arrows to move through the screens By default the configurations shown is from the transformer s output side as noted by the blue bar under the small transformer icon shown in Figure 5 34 To switch to configuration on the input side the user will click that transformer icon 5 6 1 1 PDU Alarm Limits Settings screen...

Страница 58: ...ion Min Default Max Units Input OV Alarm Limit 115 115 125 Input OV Warning Limit 105 110 115 Input UV Warning Limit 85 95 95 Input UV Alarm Limit 75 85 85 Output OV Alarm Limit 115 115 125 Output OV Warning Limit 105 110 115 Output UV Warning Limit 85 95 95 Output UV Alarm Limit 75 85 85 Output OC Alarm Limit 125 125 150 Output OC Warning Limit 100 115 125 Neutral Current Limit 0 1 125 150 Ground...

Страница 59: ...ration for averaging these parameters is set on the duration screen shown below Figure 5 35 PDU Duration Settings screen 5 6 1 3 PDU Ratings screen The PDU s voltage current and frequency ratings and CT information are shown in this screen These settings cannot be configured they are set by the factory and are read only Figure 5 36 PDU Ratings Settings screen ...

Страница 60: ...ton Figure 5 37 PDU Reset screen 5 6 2 Panel configuration settings The ratings and limits for a selected panel can be viewed or changed on the Panel s Settings screens which are opened by selecting the setting icon under the Panel s submenu after selecting a panel on the Metering Overview screen The user needs to be logged in as ADMIN to change values in these screens The values can be viewed wit...

Страница 61: ... corner Alarms and warnings will trigger after the delay time After parameter remains outside its threshold for the specified delay time the alarm warning will trigger Figure 5 39 Panel Alarm Limits screens 5 6 2 2 Panel Duration Settings screen Some metering parameters for the selected panel are averaged over time The duration for averaging these parameters is set on the duration screen shown bel...

Страница 62: ...ad only The selected panel is noted in the screen s upper left corner Figure 5 41 Panel Ratings screen 5 6 2 4 Panel Parameter Reset screen Some metering parameters for the selected panel have maximum and minimum values logged over time The logging of these values can be reset to start over as shown below The selected panel is noted in the screen s upper left corner To reset a value click on that ...

Страница 63: ...lues can be viewed with USER access Figure 5 43 PDU s submenu options with Settings icon Click the blue arrows to move through the screens The specific information displayed will depend on whether the branch is single phase or three phase 5 6 3 1 Branch Alarm Limits Settings screen The alarm warning limit settings for power voltage and current for the selected branch can be set in the Panel Config...

Страница 64: ...e averaged over time The duration for averaging these parameters is set on the duration screen shown below The selected panel is noted in the screen s upper left corner The selected branch and panel are noted in the screen s upper left corner Figure 5 46 Branch Duration Settings screen 1 pole Figure 5 47 Branch Duration Settings screen 2 or 3 pole ...

Страница 65: ... current and CT information are shown in this screen These settings cannot be configured they are set by the factory or ABB Service and are read only The selected branch and panel are noted in the screen s upper left corner Figure 5 48 Branch Ratings screen 1 pole Figure 5 49 Branch Ratings screen 2 or 3 pole ...

Страница 66: ...um and minimum values logged over time The logging of these values can be reset to start over as shown below The selected branch and panel are noted in the screen s upper left corner To reset a value click on that value then click the blue RESET button Figure 5 50 Branch Parameter Reset screen 1 pole Figure 5 51 Branch Parameter Reset screen 2 or 3 pole ...

Страница 67: ...The user needs to be logged in as ADMIN to change values in these screens The values can be viewed with USER access Figure 5 52 Sub feed s submenu options with Settings icon Click the blue arrows to move through the screens 5 6 4 1 Sub feed Alarm Limits Settings screen The alarm warning limit settings for power voltage and current for the selected sub feed can be set in the Panel Configuration Lim...

Страница 68: ... below The selected sub feed is noted in the screen s upper left corner Figure 5 54 Sub feed Duration Settings screen 5 6 4 3 Sub feed Ratings screen The selected sub feed s voltage current frequency and CT information are shown in this screen These settings cannot be changed by the customer they are set by the factory or ABB Service and are read only The selected sub feed is noted in the screen s...

Страница 69: ... value then click the blue RESET button Figure 5 56 Sub feed Parameter Reset screen 5 6 5 Thermocouple configuration settings The name state limits and delays for a selected thermal sensor can be viewed or changed on the Thermocouple Settings screens which are opened by selecting the setting icon under the Thermocouple submenu The user needs to be logged in as ADMIN to change values in these scree...

Страница 70: ... to standards listed Electromagnetic Compatibility EMC FCC compliant part 15 Enclosure NEMA 1 ANSI NFPA 70 2002 NEMA ST 20 Dry type transformers NEMA AB3 2001 Molded case Circuit Breakers NEMA 250 Enclosures for Electrical Equipment Underwriters Laboratories UL 50 Cabinets Boxes Underwriters Laboratories UL 489 Molded Case Circuit Breakers and Enclosures Underwriters Laboratories UL 840 for PCB sp...

Страница 71: ...cteristics The PDU has the capability of withstanding any combinations of environmental conditions listed below without mechanical or electrical damage or degradation of operation Operating ambient temperature 0 to 40 C Non operating and storage ambient temperature 25 to 55 C Noise level Per NEMA ST 20 o 50dbA up to 150kVA o 55dbA up to 300kVA Barometric pressure At elevations up to 3300 feet abov...

Страница 72: ...ervicesales us abb com or go to https new abb com ups service ups and power conditioning to learn more Only qualified service personnel should perform maintenance on the PDU Exercise extreme care to avoid equipment damage or injury to personnel Lethal voltages exist inside the unit during normal operation 7 1 Tightening torques Recommended tightening torque for all nuts and bolts is listed in the ...

Страница 73: ...TruFit Power Distribution Unit 94 1100 00002874 A0 EN 73 ...

Страница 74: ...his document without prior notice With regard to purchase orders the agreed particulars shall prevail ABB does not accept any responsibility whatsoever for potential errors or possible lack of information in this document We reserve all rights in this document and in the subject matter and illustrations contained therein Any reproduction disclosure to third parties or utilization of its contents i...

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