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Always “On” UPS NX-Series Service Manual

Always “On” UPS NX-Series Manual Online:

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Always “On” UPS NX-Series User Manual
Always “On” UPS NX-Series User Guide
Always “On” UPS NX-Series Online Manual

Text of Always “On” UPS NX-Series User Guide:

  • Always “On” UPS NX-Series, Always On UPS Systems M0704_NX_Series_Service_Manual V2.17 2012-06-12 85 FROM INVERTER TO BYPASS PROCEDURE: 1. PUSH THE INVERTER OFF SWITCH (RIGHT & MIDDLE OF INVERTER SWITCH). 2. OPE N THE BATTERY BREAKER. 3. OPE N THE RECTIFIER BREAKER. 4. WAI T 5min FOR DC CAPACITOR INSIDE TO DISCHARGE. 5. CLOS E THE BYPASS BREAKER. 6. OPEN THE RESE RVE BREAKER. 7. LOCK THE DOOR. SHUTDOWN PROCEDURE: 1. PUSH THE INVERTER OFF SWITCH (RIGHT & MIDDLE OF INVERTER SWITCH). 2. OPE N THE BATTERY BREAKER. 3. OPE N THE RECTIFIER BREAKER. 4. WAI T 5min FOR DC CAPACITOR INSIDE TO DISCHARGE. 5. OPE N THE RE

  • Always “On” UPS NX-Series, Always On UPS Systems M0704_NX_Series_Service_Manual V2.17 2012-06-12 36 16. BOARD LED INDICATION TABLE PCB FUNCTION LOCATION NORMAL ABNORMAL SOLUTION PCB LED LED Illuminated Description LED Illuminated Description 3A Main Control PCB Module LED A5 Overtemp Fault (OTF) No 3G working Yes 3G has problem Check 3G and ensure cable connections are secure and correctly attached. Replace the board LED A1, A2 12VDCA All Yes PCB has power No PCB has no input power Check 3B and ensure cable connections are secure and correctly attached. Replace the board 3B Power Supply PCB

  • Always On UPS Systems M0704_NX_Series_Service_Manual V2.17 2012-06-12 51 Always "On" UPS Systems Kelowna B.C. alwaysonups.com PH:877-259-2976 Reproduction and/or use without express permission is prohibited by law. DATE: 050112 FILE: BATTERY CAB C - 0001 PROJECT: BATTERY CAB C DRAWN BY: XT DESIGNED BY: AA BATTERY CAB C 29 BATT. WI

  • Always “On” UPS NX-Series, Always On UPS Systems M0704_NX_Series_Service_Manual V2.17 2012-06-12 17 - Rectifier will ramp up its DC output voltage over a period of 20 seconds and assume the load from the battery bank. It will then provide charging current to the batteries. - Indicators will show normal rectifier and inverter operation of the system. Record UPS status o Out of service, bypass mode o Status form 12. UPS SHUTDOWN PROCEDURES 12.1. Complete UPS shut down procedure a. Switch off the inverter – The inverter can be switc

  • Always “On” UPS NX-Series, Always On UPS Systems M0704_NX_Series_Service_Manual V2.17 2012-06-12 15  Fans will start, output voltage will be present.  Indicators will show normal inverter operation of the system. h. Turn Inverter Off – push buttons on front panel. - This will turn the inverter OFF and put the UPS in Static bypass mode. Reserve power will feed the output of the UPS. The switch from inverter to reserve power should be seamless and uninterrupted.  Indicators will show Static Bypass stat

  • Always “On” UPS NX-Series, Always On UPS Systems M0704_NX_Series_Service_Manual V2.17 2012-06-12 23 I. Inverter LED: This LED is lit when the inverter is supplying power to the load. J. Inverter SS LED: This LED is lit when the inverter static switch is operating and the reserve static switch is turned off. When this LED is on, the load is supplied from the inverter. K. Reserve SS LED: This LED is lit when the reserve static switch is operating and the inverter static switch is turned off. When this LED is on, the load is being supplied by the reserve. Since the reserve static switch and inverter static switch will never operate simultaneously, the Inverter SS LED and the Reserve S

  • Always “On” UPS NX-Series, Always On UPS Systems M0704_NX_Series_Service_Manual V2.17 2012-06-12 43 Inverter Module Fault UPS system initializes ok. When DC Buss is established “Fuse/Temp” fault LED turns on. Inverter can not be turned on. System operates in Static bypass mode only.

  • Always “On” UPS NX-Series, Always On UPS Systems M0704_NX_Series_Service_Manual V2.17 2012-06-12 14 11. STARTUP PROCEDURES Using the following procedure below start up the UPS, or use “manual bypass to inverter procedure”. 11.1. System start up (from complete shutdown) Follow Step by step - confirming each operation Use the Status Indicator Table as a guideline. Note: Proceed until a failure mode occurs – then record status of indicators and step failure occurred. If fault cleared during start up Do operational checks of all UPS functions. Backup mode, charging, etc Record status and readings on commissioning/ repair forms a.

  • Always On UPS Systems M0704_NX_Series_Service_Manual V2.17 2012-06-12 73 Table 29.1 LED Operation for the 3G PCB PCB FUNCTION LOCATION NORMAL ABNORMAL SOLUTION PCB LED LED Illumination Description LED Illumination Description 3G Inverter Driver (RST) Inverter Module LED G1 Yes Inverter working No Inverter failure Ensure cable connections are se

  • Always “On” UPS NX-Series, Always On UPS Systems M0704_NX_Series_Service_Manual V2.17 2012-06-12 65 24. WARNING LED’S AND SWITCHES (3W PCB) 25. LCD DISPLAY 26. MIMIC DIAGRAM (3L PCB) 27. STATUS LED’S AND AUDIBLE ALARM (3AG PCB) These PCBs make up the local operator display and control interface. Figure 24.1 Location of Display PCBs in the PCB Module

  • Always “On” UPS NX-Series, Always On UPS Systems M0704_NX_Series_Service_Manual V2.17 2012-06-12 48 + + + + POS NEG 125A BREAKER TOTAL: 348VDC / 60A FILE: BATTERY CAB A - 0002 DATE: 050112 BATTERY CAB A BATTERY INTERCONNECT WIRING CONFIG Always "On" UPS Systems VERSION: V1.0 PROJECT: BATTERY CAB A DESIGNED BY: AA DRAWN BY: XT Reproduction and/or use without express permission is prohibited by law. Kelowna B.C. alwaysonups.com PH:877-259-2976

  • Always “On” UPS NX-Series, Always On UPS Systems M0704_NX_Series_Service_Manual V2.17 2012-06-12 63 23. COMMUNICATIONS INTERFACE (3R PCB) This is the local and remote Operator interface for the entire UPS system. This controls the local front panel Operator interface by utilizing information from the Main Control PCB and translating and sending that to the front panel display PCB’s. Also receives the local Operator commands from front panel display PCB’s and relays these to the Main Control PCB. It also provides remote communication links via multiple protocols for operator monitoring and control. Figure 23.1 Location of 3R

  • Always “On” UPS NX-Series, Always On UPS Systems M0704_NX_Series_Service_Manual V2.17 2012-06-12 76 6-pulse Rectifier Static Switch R Phase S Phase T Phase Picture 30.1 Picture of Static Switch and Rectifier Module for the 10kVA to 60kVA UPS systems P1 LED P2 LED

  • Always “On” UPS NX-Series, Always On UPS Systems M0704_NX_Series_Service_Manual V2.17 2012-06-12 82 Figure 31.6 Exploded view of system behind the PCB Module

  • Always On UPS Systems M0704_NX_Series_Service_Manual V2.17 2012-06-12 32 14.11. Menu 10 – Boost Charge Setting Menu Warning! These settings have been preset by the factory to optimize the battery bank requirements. Do not change settings unless factory or factory trained service personnel have been consulted. MENU 10 is reached by selecting BOOST CHARGE on MENU 5. Thi

  • Always On UPS Systems M0704_NX_Series_Service_Manual V2.17 2012-06-12 59 21. RECTIFIER CONTROL CIRCUIT (3C PCB) This PCB acts as the interface between the Main Control PCB and the Rectifier Module. It relays the control signals from the Main Control PCB to the Rectifier Driver (3S PCB) within the Rectifier Module. It also monitors all aspect

  • Always On UPS Systems M0704_NX_Series_Service_Manual V2.17 2012-06-12 70 29. INVERTER MODULE This is a pluggable module which contains the high power devices for the inverter. The inverter converts the power from the DC Bus to regulated and conditioned AC power. One phase of the inverter is comprised of an Inverter Driver PCB (3G PCB), high powered IGBTs, a Prot

  • Always “On” UPS NX-Series, Always On UPS Systems M0704_NX_Series_Service_Manual V2.17 2012-06-12 44 Static Switch Module Fault UPS starts up to full operation. When inverter is turned off UPS output shuts down because of faulty static switch.

  • Always “On” UPS NX-Series, Always On UPS Systems M0704_NX_Series_Service_Manual V2.17 2012-06-12 47 + + + + + + + + + + + + + + LOWER THREE TRAYS (NOTE: BOTTOM TRAY HAS ONLY 7 BATTERIES) TOP TRAY Always "On" UPS Systems BATTERY CAB A BATTERY TRAY WIRING LAYOUT VERSION: V1.0 DATE: 050112 FILE: BATTERY CAB A - 0001 PROJECT: BATTERY CAB A Kelowna B.C. alwaysonups.com PH:877-259-2976 Reproduction and/or use without express permission is prohibited by law. DRAWN BY: XT DESIGNED BY: AA

  • Always “On” UPS NX-Series, Always On UPS Systems M0704_NX_Series_Service_Manual V2.17 2012-06-12 30 14.7. Menu 6 – Rectifier Data Menu MENU 6 is reached by selecting RECTIFIER DATA on MENU 3. The information provided on this menu is the real time readings of the rectifier input; RECTIFIER FREQUENCY, R-N/S-N/T-N VOLTAGE for wye (Y) configured systems or R- S/S-T/T- R VOLTAGE on delta (≥) configured systems. The UP (↑) or DOWN (↓) key has no function in this menu. The screen will return to MENU 3 when the ENTER (↵) key is presse

  • Always “On” UPS NX-Series, Always On UPS Systems M0704_NX_Series_Service_Manual V2.17 2012-06-12 77 Table 30.1 LED Operation for the 3P PCB PCB FUNCTION LOCATION NORMAL ABNORMAL SOLUTION PCB LED LED Illumination Description LED Illumination Description 3P Static Switch Driver (R,S,T) Static Switch Module LED P1 Yes Inverter output is within normal parameters No Inverter operating, transfer from inverter has failed Replace the board LED P2 Yes Reserve output is within normal parameters No Inverter operating, transfer from reserve has failed Replace the board Figure 30.3 Layout of one phase of the Static Switch Module

  • Always “On” UPS NX-Series, Always On UPS Systems M0704_NX_Series_Service_Manual V2.17 2012-06-12 20 The front panel is located behind the glass window on the front door. It displays the real time information, UPS Status, battery system and provides the user interface for controlling and setting the UPS operating parameters. This panel is user friendly. Each part of the panel is explained below: A: LCD display- Real time status, data and historical events are displayed on the LCD. The UPS parameters, real time clock, inverter, and buzzer can

  • Always “On” UPS NX-Series, Always On UPS Systems M0704_NX_Series_Service_Manual V2.17 2012-06-12 7 6. INVERTER The inverter is composed of IGBT’s, inductors, capacitors, highly efficient filters, control circuitry and protection circuitry. This inverter inverts the DC power received on the DC bus to isolated, noise-free AC power, which is then supplied to the critical loads. Our PWM wave generator is switching at a higher frequency well above the human audible range. The Voltage regulating circuitry limits the output voltage variation to within 1% of the nominal voltage and special compensation circuitry has been added to eliminate output distortion. Ev

  • Always “On” UPS NX-Series, Always On UPS Systems M0704_NX_Series_Service_Manual V2.17 2012-06-12 50 + + + + + + + + + + + + + + TRAYS 2,3,6,7 NOTE: TRAY 1 (BOTTOM TRAY) & TRAY 8 (TOP TRAY) HAVE ONLY 7 BATTERIES EACH TRAY 4 & TRAY 5 BATTERY CAB B BATTERY TRAY WIRING LAYOUT VERSION: V1.0 Always "On" UPS Systems FILE: BATTERY CAB B - 0002 DATE: 050112 PROJECT: BATTERY CAB B Kelowna B.C. alwaysonups.com PH:877-259-2976 Reproduction and/or use without express permission is prohibited by law. DRAWN BY: XT DESIGNED BY: AA

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