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Summary of Contents for PDi WaveStar 2000A
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WaveStar Static Transfer Switch 2000A 3-Pole Installation and Operation Ctrl Nr: DOC15139 Revision: 004...
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For over 30 years, PDI has served the data center and alternative energy markets providing flexible solutions with the widest range of products in the industry.
Contents Contents Safety .................... 8 System Description ............... 9 Basic Characteristics ................9 System Layout .................. 9 Transfer Process: Algorithms ............14 1.3.1 The Problem of Transformer Current Inrush ......14 1.3.2 Sense and Transfer Algorithms ..........14 Transfer Process: Power Switching Components ........15 High Availability through Redundancy ..........
WaveStar Static Transfer Switch 2000A 3-Pole Safety Please pay special attention to the use of “Danger” symbols throughout this manual indicating electrical or other safety hazards. Following these safety instructions is extremely important to avoid possible injury or death. DANGER! This symbol is used throughout this manual to indicate the presence of high voltages, representing a hazard for electric shock, burn or explosion.
System Description 1 System Description This manual describes installation and operation of the PDI® WaveStar® Static Transfer Switch 2000 Amperes 3- Pole (STS 2000A). The Static Transfer Switch (STS) is a three-pole, two-position transfer device that transparently transfers, automatically or manually, an output load between two three-phase input power sources.
Sense and Transfer Algorithms Sense algorithms detect that the active power source is going out of specification and that a transfer is required. PDI has optimized STS sense algorithms experimentally, but algorithm parameters can be adjusted by administrators if necessary.
System Description 1.4 Transfer Process: Power Switching Components There are three sets of Molded Case Circuit Breakers (MCCBs) or Molded Case Switches (MCSWs) controlling whether the system is in Normal or Bypass Mode and two sets of SCRs, which provide power switching for transfers: •...
WaveStar Static Transfer Switch 2000A 3-Pole by the Simple Algorithm Switch (SAS), which provides a backup transfer process using a simpler algorithm, if the Monitor fails. One-line Diagram is STS is on Bypass 1. from the Home screen. Bypass 1 is the active Source (Input) 1 and 2 power path (yellow).
System Description • Each signal bus continuously transmits “bus integrity” signals, when not transmitting true data. If the “bus integrity” signals are not received by all receivers, then that bus is considered discontinuous and is alarmed. • The CAN Bus has circular redundancy so that there are two paths. One path can be severed and signals will continue to flow via the other path.
WaveStar Static Transfer Switch 2000A 3-Pole • Only one user can be logged in at a time. The Event Log records and time-stamps the user’s login, changes to parameters or actions while the user is logged in, and the user’s logout. •...
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System Description • Institute of Electrical and Electronics Engineers (IEEE) • National Electrical Code (NEC) • National Electrical Manufacturers Association (NEMA) • National Fire Protection Association (NFPA) Ctrl Nr: PM375118-004...
• Chapter 5 Customer Communications Connections • GUIDE SPECIFICATION PDI 2000 Amp 3-Pole Static Transfer Switch 2.1 System Enclosure The STS 2000A enclosure is designed for the data center or telecommunications environment. The enclosure is shown in Figure 1, STS 2000A 3-pole, General Assembly Drawing, and enclosure details are listed below.
Installation Planning 2.4 Environmental Specifications • Storage temperature range: -40° to +80°C • Storage Altitude: Up to 40,000 feet above sea level • Operating temperature range: 0° to 40°C • Operating altitude: • Up to 5000 feet above sea level without de-rating. •...
WaveStar Static Transfer Switch 2000A 3-Pole 2.6 Surge Protection The STS will safely withstand without mis-operation or damage: • Transient voltage surges on either AC power input as defined by ANSI/IEEE C62.41 for Category B3 locations (high surge exposure industrial and commercial facilities) •...
Installation Planning 2.8 Wiring and Connections 2.8.1 Circuit Breaker Rating and Upstream Protection The STS 2000A has input source and bypass MCCBs that are 100 percent rated for 2000A, the full load rating of the unit. Consequently the STS 2000A does not itself need upstream circuit breaker protection. However, customers should provide circuit breaker protection for the input wires to the STS as required by the NEC.
WaveStar Static Transfer Switch 2000A 3-Pole Source 2 ABC Source 1 ABC Output ABC Figure 8 STS Rear: Customer Connections to 3-Phase Buses, Sources and Output 2.8.3 Control Wiring All control cabling to and from the STS should be rated at minimum 10A and cable insulation should be rated for 600VAC, unless otherwise specified on the drawings.
3.2 Unloading, Unpacking, and Handling You should unpack your PDI product with the same care used in packing the product for safe and efficient delivery to your facility. 1. Use the shipping skid provided to move the system as close as possible to the final installation position.
3.3 Internal Inspections Execute the following inspections as soon as possible upon arrival of your PDI equipment: 1. Open the front door and check the nameplate on the cabinets to verify that the model numbers correspond with the ones specified on the bill.
Installation is the responsibility of the Installer, who may be an Installing Contractor. The Installer must be an electrician certified for the locality where the installation is being performed. A PDI-certified technician must perform or witness Commissioning and Start-up of the STS 2000A unit to validate the warranty.
As part of acceptance testing, the STS should pass a Performance Test at 80% load minimum. A PDI service technician will perform or witness the Site Acceptance Test as indicated in the "Site Acceptance Report.” The technician will then ask the customer representative to sign the completed Acceptance Test Report/Work Order.
WaveStar Static Transfer Switch 2000A 3-Pole primary logic has embedded software that controls both the low inrush algorithm and the concurrent recording of any switch transfer events with its real time wave form capture feature. The secondary logic is connected to the load side of the input MCSWs in the static switch and is used to trigger the switch to transfer upon opening of the input MCSWs along with the primary logic.
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Installation and Startup Procedures • Network setup: configure networking options and addresses. See Chapter 10 System Setup: Networking. Ctrl Nr: PM375118-004...
Customer Communications Connections 5.1.1 Basic Contractor Board Figure 11 Basic Contractor Board The Basic Contractor Board connections (Figure 11) are as follows: Dry Contact Remote Relays: Programmable NO or NC dry contacts for external output of specific internal alarms or status: 1.
Note: Remote relays can accept dry contacts rated up to 2A/250V. The Contractor Boards have multiple applications in PDI products and not all connections are supported on the STS 2000A. The following connections are not currently supported on this product: •...
WaveStar Static Transfer Switch 2000A 3-Pole Basic Contractor Enhanced Contractor Board Remote Relays Board (Default List) List 1 List 2 Relay 1 Summary Alarm Summary Alarm Summary Alarm Relay 2 Load is on Source 1 Load is on Source 1 Load is on Source 1 Relay 3 Load is on Source 2...
Customer Communications Connections 5.3.3 Remote Source Select Option Two external two dry contacts can be used to control the remote selection of the preferred source. Dry contact closures are generally used when two UPSs supply power to the system. If the preferred UPS goes to bypass mode, the “good”...
WaveStar Static Transfer Switch 2000A 3-Pole 6 Operational Interfaces There are two STS operator interfaces: • The touchscreen display, which is the normal operator interface • The Redundant Operator Interface (ROI), which sets the operational mode and backs up the touchscreen display 6.1 Touchscreen Display The STS has a 10.4-inch diagonal touchscreen display.
Operational Interfaces The Home screen also has Preferred Source control (see 7.1.1 Preferred Source). Select Preferred Source (can force transfer). Input Source 1 and 2 measurements are voltage and See Chapter 7 Operational Modes. degrees of phase angle between sources. Active path Dynamic 1-line mimic, showing...
WaveStar Static Transfer Switch 2000A 3-Pole 6.1.4 User/Operator Login Viewing screens does not require login, nor does viewing screens remotely using a web browser. However, to use controls or change parameters, a user must log in from the Operator panel on the Home screen and have an access level that permits the action.
Operational Interfaces To Log in: • Touch Log In on Home screen • Enter PIN.Password on Keyboard screen, then OK. User name appears in Operator box on Home screen. To Log out: • Touch Log In on Home screen • Touch Cancel on Keyboard screen The display returns to Home screen and Operator box reads “Locked”...
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WaveStar Static Transfer Switch 2000A 3-Pole 3. In REDUNDANT mode, the ROI can also be used to directly initiate a transfer using the SOURCE SELECTOR momentary toggle switch. NOTE1: The SOURCE SELECTOR switch operates slightly differently in Normal and Redundant modes: •...
Operational Interfaces MODE OF OPERATION (Toggle Switch): SOURCE SELECTOR (Momentary Toggle Switch): NORMAL = Standard STS operation with normal In NORMAL Mode: transfers using the selected transfer algorithm Toggle SOURCE 1=Set Preferred Source to Source 1 In REDUNDANT Mode: REDUNDANT = Use ROI to transfer load; SAS board performs transfers using its own algorithm Toggle SOURCE 1=Transfer Load to Source 1 Leave in NORMAL except in emergencies.
WaveStar Static Transfer Switch 2000A 3-Pole Operational Modes The STS has three modes of operation: • Normal • Redundant • Bypass 7.1 Normal Mode Operation For normal operation, the MODE OF OPERATION toggle switch on the ROI panel should be set to NORMAL.
• The automatic retransfer to the Preferred Source can be disabled by an authorized user with administrator, service, or PDI level privileges, by setting Retransfer = No. • If Retransfer = No, there is no affinity to the Preferred Source, except at startup. The logic will transfer the load from the failing source to the “good”...
WaveStar Static Transfer Switch 2000A 3-Pole • Excessive load current. If the load current exceeds an adjustable preset level, automatic transfers are disabled until load current falls below that level, even if the voltage on the selected source exceeds the transfer limits. •...
Operational Modes • Retransfer Yes/No is not a setting on the ROI panel and retransfer does not apply: The SAS board has no memory of previous transfers; it simply transfers when the current source is out of specification and the other source is within specification. •...
WaveStar Static Transfer Switch 2000A 3-Pole 7.3.1 Kirk Key Interlocks Source 1 MCCB and Bypass 2 MCCB/MCSW are interlocked with Key 1: If Source 1 MCCB is closed, Bypass 2 MCCB/MCSW must be open. If Source 1 is open, Bypass must be closed. Source 1 Source 2 Source 2 MCCB and Bypass 1 MCCB are interlocked...
Operational Modes 7.3.2 Procedure for Going to Bypass 1 Note: Source 1 is assumed the active power source at the start of this procedure. 5. Open Source 1 MCCB. 2A. Rotate and remove Key2 from Source 2 MCCB. 1. Open Source 2 MCCB. Source 1, 2 MCCBs 2B.
WaveStar Static Transfer Switch 2000A 3-Pole 4. Close Source 1 Bypass MCCB; because the MCCB closes “around” the power switch element, bypass is transparent to the load. 5. Open Source 1 input MCCB. 6. Open the isolation MCSW(s): STS switching logic is bypassed. 7.3.3 Help Assistance for Bypass The Help screen also has instructions to guide an operator through steps for going to Bypass 1 or 2 or...
Operational Modes Help checklists guide an operator through the steps of going to bypass. There are checklists for going to Bypass 1 and 2 and returning to Normal STS operation. Touch Help. Help overlays the Operator and Transfers panels on the Home screen.
The STS has four access levels: 1. PDI: This level has authorization for all actions except clearing the Event Log. PDI access is required to use the Configuration screen. 2. Service: This access level is for PDI-authorized service representatives. This level has authorization for all actions except clearing the Event Log.
• A: Administrator • S: Service • O: Operator • The PDI class is hardcoded and cannot be assigned by the administrator. User being set up is Scroll through highlighted (blinking). User List to highlight a User Name or number.
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WaveStar Static Transfer Switch 2000A 3-Pole 2. Touch User button (or More to see User button) to navigate to the Users screen. 3. Using scroll bar, scroll down to an available user entry (in this example, User 2). The user entry becomes highlighted, blinking with alternating red/blue coloring.
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System Setup: Administration 6. Name now shows on Users screen. 7. Touch Pin to bring up touchscreen keyboard to enter user’s PIN. 8. Enter Pin using touchscreen keyboard. Touch OK. 9. Touch Password on Users screen. Enter Password using touchscreen keyboard. Touch OK.
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WaveStar Static Transfer Switch 2000A 3-Pole 12. Log in as user (“Henry Smith” in this example): Touch Log In on Operator Panel on pin.password. Enter Home screen. Do not forget the dot between pin and password.) Enter pin.password with The PIN identifies the user, not the user name. touchscreen keyboard.
Touch the Config button to view. PDI uses the Configuration screen to describe the system to the Monitor software, which is common for all PDI STS products. Parameters include physical characteristics (standalone or redundant system, contractor board installation, fans, number of isolation MCSWs), power (voltages, frequency, KVA, etc.), and distribution options.
The remaining parameters are Optimization parameters for the sense, transfer, and retransfer algorithms. These parameters have been experimentally set and optimized by PDI. NOTE: PDI strongly recommends that the Fast, Delayed, and Retransfer Delay settings not be changed. User Controls...
WaveStar Static Transfer Switch 2000A 3-Pole 10 System Setup: Networking The parameters for networking options are mainly found on the Settings screen. The STS has several networking options, which can all be used simultaneously. In addition, the STS has several methods to provide summary alarm notifications, including by email and modem.
System Setup: Networking 10.2 Ethernet The STS has an Ethernet port and cable. (For physical attachment see 5.2 Ethernet Connection.) The Ethernet cable must be physically attached to the customer network and STS Ethernet addresses set before ModBus TCP/IP, SNMP, or SNTP Time Synchronization are configured. The Ethernet Settings panel in the Settings screen (Figure 24) allows the operator to set an IP address if a different address than the DHCP address is required.
WaveStar Static Transfer Switch 2000A 3-Pole 2. The Ethernet port must be connected to a network with a reachable time server supporting SNTP. 3. You must have the IP address of the time server. The time server could be a dedicated time server possibly with a GPS receiver, a local computer running time server software, or a time server on the Internet.
The STS 2000A supports SNMP Version 1. Supported SNMP message types are Get and GetNext. The SNMP MIB is available on the PDI website. http://www.pdicorp.com/brands/pdi/services/customer- service/service-software-downloads You can also have the MIB emailed to you by PDI Service (800-225-4838, option 3). Ctrl Nr: PM375118-004...
WaveStar Static Transfer Switch 2000A 3-Pole 10.5 Web Server The STS has a web server with web pages showing remote status of the STS. Link to the STS web server using the IP address specified on Settings Screen Ethernet panel Address field. See Chapter 12 Web Pages for more information.
System Setup: Networking 10.7 Modem Land Line Touch Modem to display the Modem screen (Figure 28). You can connect a 9600 baud modem to the Enhanced Contractor Board. The modem can be used to send a summary alarm to one or two specified destinations.
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WaveStar Static Transfer Switch 2000A 3-Pole Touch Reset to reset the modem. Ctrl Nr: PM375118-004...
Status, Alarms, and Diagnostic Information 11 Status, Alarms, and Other Diagnostic Information 11.1 Points Lists The STS has two points lists (Modbus Register Maps): • Digital Points, listed in 13.1 Digital Screen Points. • Analog Points, listed in 13.2 Analog Screen Points. These are replicated in the Digital Values and Analog Values screens.
WaveStar Static Transfer Switch 2000A 3-Pole The Digital screen displays the Digital Values screen as shown in Figure 29. • The first column is the description of the digital point value’s alarm or abnormal state. There dot indicator at the beginning of each row indicating the general state of point (for explanation of indicator, see Figure 29).
Status, Alarms, and Diagnostic Information Each row displays an analog point with its status and last measurement. The dot indicators at the beginning of each row indicate the status of the point: • Green = Normal • Red = Abnormal (alarm) •...
WaveStar Static Transfer Switch 2000A 3-Pole • The Home screen shows Alarm status and gives an alarm count. • The Voice Unit of the STS states: “Static Switch, new alarm.” • A summary alarm can be signaled when any alarm occurs by one or more of these means: •...
Status, Alarms, and Diagnostic Information Touching the Reset button will clear all points from the Alarms Screen. If the alarm conditions remain active in the unit after clearing the screen, the alarms will show again. 11.2.3 Event Log Screen Touch the Log button in the navigation buttons to display the Event Log Screen (Figure 32). Events include •...
WaveStar Static Transfer Switch 2000A 3-Pole Event Description Change in Point’s State Event Date/Time Stamp Point Event Type Description The same event can cause multiple log entries, particularly as multiple points are affected. Clear button clears all events from the log and requires Administrator authorization.
Status, Alarms, and Diagnostic Information Source 1 and 2 Voltages Outage shown in plots Output Voltage and Amperage Touch Now to generate an immediate plot. Scroll to Touch Clear to highlight clear all plots. event. The plots displayed are for the highlighted event.
WaveStar Static Transfer Switch 2000A 3-Pole 11.3 Additional Status Screens 11.3.1 Harmonics Screen Touching the Harmonic button in the navigation buttons displays the Harmonics screen (Figure 34). Figure 34 Harmonics Screen The Harmonics screen displays harmonics for • STS output voltage harmonics as percent of total waveform. •...
100% or higher. Load values are defined by PDI on the Configuration Screen (Figure 28). 100% load values are stored in the Analog Points list as Rated Total KVA (point 93) and Rated Phase Amp (point 94).
Table 3 STS Screen to Web Page Correspondence The Contact PDI web page has a link to send email to PDI service and a link to the PDI corporate web site. The Downstream page is not valid for the standalone STS 2000A because it has no distribution branch circuits.
WaveStar Static Transfer Switch 2000A 3-Pole 12.1 Analog Web Page On any STS web page, click Analog to display the Analog web page (Figure 38). All Analog Points (see 13.2 Analog Screen Points) can be displayed on this page. The color-coding of points is the same as the indicator dot in the Analog Values screen (Figure 30), but is applied to the entire point entry: •...
Web Pages Figure 39 One-Line Web Page 12.3 Log Web Page The Event Log is displayed in the Log page. It can also be downloaded to a CSV file (Figure 40) in the same way as the Analog web page. Figure 40 Event Log Download to Spreadsheet Ctrl Nr: PM375118-004...
WaveStar Static Transfer Switch 2000A 3-Pole 12.4 Waveforms Page The Waveforms page (Figure 41) corresponds to the Plots screen (Figure 33). Click the Get button to click through the waveforms associated with events. Waveforms are time-and-date stamped to let you associate them with specific events in the Alarms or Log web pages.
Operator Procedures 13 Operator Procedures Once configured, the STS requires few operator interventions. The following procedures cover the main interventions. 13.1 Startup after Power Rework Initial startup is covered in 4.1.3 Commissioning: Initial Power-up Site Test. If power rework has been performed upstream of the STS, follow steps 2-4 of this procedure to verify correct input power to the STS.
5. If SAS board alarms reappear, contact PDI Service at +1.800.225.4838. 13.5 Component Failure The STS has substantial component redundancy and a single component failure will normally not impact operation. Nevertheless, if alarms indicate component failure, call PDI Service at +1.800.225.4838. Ctrl Nr: PM375118-004...
• Do not touch the printed circuit boards containing the processor and logic circuits without first consulting PDI Service at +1.800.225.4838. Untrained personnel can seriously damage the equipment and may cause themselves serious or fatal injuries. If after reviewing and checking all the recommended correction procedures for any problem, please do not hesitate to contact Power Distribution, Inc.
WaveStar Static Transfer Switch 2000A 3-Pole 15 Digital and Analog Points 15.1 Digital Screen Points Table 5 shows the digital points as they show on the screen for the Digital Points List (Rev 2.86 and higher). The Normal and Abnormal columns show what is Normal for the digital point (and hence not an alarm) and what is Abnormal (hence an alarm).
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Digital and Analog Points Alarm Status Normal Name Normal Abnormal Alarm Status Index Index Value XFMR 2 HT Alarm If Installed If Installed 1028 XFMR 2 OT Alarm If Installed If Installed 1029 SCR High Temp Alarm 1030 SCR Over Temp Alarm 1031 Shunt Trip 1...
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WaveStar Static Transfer Switch 2000A 3-Pole Alarm Status Normal Name Normal Abnormal Alarm Status Index Index Value SAS 1 S2 Gated 1077 SAS 2 S2 Gated 1078 SAS 3 S2 Gated 1079 SAS S1 Gated 1080 SAS S2 Gated 1081 SAS D Timeout Alarm 1082...
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Digital and Analog Points Alarm Status Normal Name Normal Abnormal Alarm Status Index Index Value I Line 2 Bell Alarm If Installed If Installed 1126 I Line 3 Aux Alarm If Installed If Installed 1127 I Line 3 Bell Alarm If Installed If Installed 1128...
WaveStar Static Transfer Switch 2000A 3-Pole 15.2 Analog Screen Points Table 6 lists the Analog Points as they show on the screen. The same point name is used when the point appears on the Analog Values Screen, the Event Log Screen, or the Alarms Screen.
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Digital and Analog Points Value Low Alarm High Alarm Name Units Value Scale Index Index Index S 1 Frequency *100 (6000=60.00) S 2 Frequency *100 (6000=60.00) Phase Degrees None Output %KVA A 68=68% Output %KVA B 68=68% Output %KVA C 68=68% Total KVA None...
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WaveStar Static Transfer Switch 2000A 3-Pole Value Low Alarm High Alarm Name Units Value Scale Index Index Index Out Amps C 3rd 68=68% Out Amps C 5th 68=68% Out Amps C 7th 68=68% Out Amps C 9th 68=68% Out Amps C 11th 68=68% Out Amps C 13th 68=68%...
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Digital and Analog Points Value Low Alarm High Alarm Name Units Value Scale Index Index Index PDU 2 Amps C Amps None PDU 2 KVA A None PDU 2 KVA B None PDU 2 KVA C None PDU 2 Total KVA None PDU 2 Peak Total KVA None...
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WaveStar Static Transfer Switch 2000A 3-Pole Value Low Alarm High Alarm Name Units Value Scale Index Index Index I Line 3 KVA B None I Line 3 KVA C None I Line 3 KW A None I Line 3 KW B None I Line 3 KW C None...
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Digital and Analog Points Value Low Alarm High Alarm Name Units Value Scale Index Index Index I Line 6 PF C *100 (92=0.92) I Line 6 Total KVA None I Line 6 Total KW None I Line 7 Amps A Amps None I Line 7 Amps B...
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WaveStar Static Transfer Switch 2000A 3-Pole Value Low Alarm High Alarm Name Units Value Scale Index Index Index I Line 10 KVA B None I Line 10 KVA C None I Line 10 KW A None I Line 10 KW B None I Line 10 KW C None...
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Digital and Analog Points Value Low Alarm High Alarm Name Units Value Scale Index Index Index Dist 1 Amps B Amps None Dist 1 Amps C Amps None Dist 2 Amps A Amps None Dist 2 Amps B Amps None Dist 2 Amps C Amps None...
WaveStar Static Transfer Switch 2000A 3-Pole 15.3 Analog Alarms Default Settings Table 7 Voltage Alarms Default Settings Voltage Alarms 600 Volt Points: Parameter High Limit Setting Low Limit Setting V phase-phase 110% V phase-neutral 110% Voltage Alarms 480 Volt Points: Parameter High Limit Setting...
Preventative Maintenance contract is in effect. 16.3 Start Up PDI START UP is a sure way of getting your power quality equipment up and running as you demand. By following our standard START UP procedures, you can be assured that you power quality equipment will perform to meet your requirements.
PDI provides telephone support 24 hours a day, 7 days a week direct line to Service (800-225-4838). Work can be performed on the STS or STS/PDU System on weekends, nights or holidays. (Consult factory for details.)
In most cases the customer will be covered by START UP service or Maintenance Contracts, however, there may be times when the customer needs PDI service and lacks the benefits that these two packages provide. Therefore, PDI provides Time and Material coverage for those in need of our customer support engineers.
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(1) year terms unless terminated by either party by written notice given at least sixty (60) days prior to the anniversary of the Service Commencement Date. In consideration of the above, the Customer shall pay PDI the amount of $_____________ as invoiced. Customer shall be invoiced within thirty (30) days of Service Commencement Date.
Any products which are defective in workmanship or material will be repaired or replaced at the option of PDI. The obligation of PDI hereunder will be limited solely to repair and replacement at its factory of products that fall within the foregoing limitations and will be conditioned upon receipt by PDI of written notice within the warranty period of any alleged defects or deficiency.
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PDI's liability under this warranty will be in lieu of any warranty or condition implied by law as the quality or fitness for any particular use of the goods, and save as provided in this clause, PDI shall not be under any liability, whether in contract, tort or otherwise for consequential damages resulting from defects in PDI products.
1978. The warranty for your equipment becomes effective from the date of commissioning by a PDI Certified Technician. Please complete the above information and return to PDI by fax at 804-737-1549.
Customer's site. Service requested for other times (nights, fault of PDI. In no event shall PDI be liable for loss of data, loss of profits weekends, and holidays) shall be billed out at the difference of PDI's...
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Analog and Digital. Manuals and Other Documentation for PDI Products Installation and Operation manuals and other documentation for specific products can be downloaded from the product pages on the PDI website. Go to Products and select the appropriate Product Page: https://www.pdicorp.com/products Products are organized under the general categories, Transform, Distribute, and Monitor.
WaveStar Static Transfer Switch 2000A 3-Pole Glossary Building Management System. Decibel A-weighting. IRIG time codes Inter-Range Instrumentation Group time codes. KAIC Kilo Ampere Interrupting Capacity, or Thousand Ampere Interrupting Capacity, a rating of the maximum short-circuit or overload current that a circuit breaker can safely interrupt.
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150% of the transformer rating, but in practice usually much less, typically less than 100% of the full load transformer rating. The VSS algorithm is patented by PDI. WaveStar WaveStar devices can interact with downstream Branch Circuit Monitoring Systems.
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