Astec Advanced Power Systems UM5C06B / C ( 169-2071-500 ) MPR25 / MPR15 Series, Single Phase −48V, 25A Switch Mode Rectifier NT5C06B/C Installation and User Manual P0711722 Standard 10.
Astec Advanced Power Systems MPR25 / MPR15 Series, Single Phase −48V, 25A Switch Mode Rectifier NT5C06B/C Installation and User Manual Manual Number : UM5C06B / C ( 169-2071-500 ) Manual Status : Standard Manual Release : 10.0 Release Dateb : May 2001 P0711722 Copyright 2001 Astec Advanced Power Systems Ltd All Rights Reserved Published in Canada The information contained in this manual is the property of Astec Advanced Power Systems and is subject to change without notice.
Publication history May 2001 Standard Issue 10.00. Manual modified to reflect the Emerson identity. ( EC 102-26701 ) September 1999 Standard release 9.0. Document modified to reflect new Astec address and minor corrections throughout. (ECN 102-17331) May 1999 Standard release 8.0. Document modified to reflect Astec identity. (ECN 102-14607) January 1998 Standard release 7.0.
Publicaton history February 15, 1991 Standard release 2.0 October 1, 1990 Standard release 1.0 UM5C06B / C ( 169-2071-500 ) P0711722 Standard 10.
Contents About this manual.....................................................................................................13 Purpose of this manual ................................................................................................13 Safety precautions ......................................................................................................13 How this manual is organized ......................................................................................13 Introduction...
Contents Inrush current limiting fuse (F1) .....................................................................23 Test points (V+, V-) .......................................................................................24 Current meter ................................................................................................24 Fan filter option .............................................................................................24 Rear interface..........................................
Contents 9 LVD installation in the shelf ...........................................................................59 Start-up procedure.......................................................................................................60 Factory set voltage limits...............................................................................60 Rectifier power-up .........................................................................................61 HVSD adjustment..................................
Contents Power and signal lead termination ...............................................................102 Factory set voltage limits.............................................................................102 FTOP application .......................................................................................................102 Alarms.........................................................................................................103 Power and signal lead termination ..................
Contents 11 Figure 21 - Rectifier AC and DC power (internal) cabling harness.................................58 Figure 22 - Embedded shelf - LVD connections - rear access ........................................59 Figure 23 - Embedded shelf - LVD connections - side access ........................................60 Figure 24 - Embedded shelf quick disconnect for sense (sectional view).......................62 Figure 25 - Low voltage disconnect connections ....................................................
Contents List of Procedures Procedure 1 - Power shelf installation..........................................................................41 Procedure 2 - Common bussed AC connection - side access.........................................47 Procedure 3 - Individual AC connection - side access old vintage .................................49 Procedure 4 - Individual AC connection-side access .....................................................49 Procedure 5 - Individual AC connection - side access .....
About this manual Purpose of this manual This manual provides all the necessary information for installing, operating and maintaining an MPR15 (-48 V/15 A) and MPR25 (-48 V, 25 A) series (NT5C06B/C) Switch Mode Rectifier, 19-inch and 23-inch Power Shelf NT5C10 for embedded and system applications, as well as the NT5C13F( ) Low Voltage Disconnect series. Safety precautions This equipment meets CSA 22.0 - 0M1982, CSA C22.2 - 107-1957 and UL1950. High voltages are present inside the unit.
About this manual This page is left blank intentionally. UM5C06B / C ( 169-2071-500 ) P0711722 Standard 10.
Introduction Applications The MPR15 / MPR25 rectifiers are designed to operate continuously in a battery-equipped or batteryless –48 V power system, either embedded as part of a small system, or as part of a power plant in a system application. Several models are available for operation in a controlled environment. An extended temperature version is capable of withstanding temperatures ranging from -40°C to +65°C while standard models operate from 0° to +65°C ambient.
Specifications Rectifier models Four models are listed in Table 1.
Specifications Mechanical The MPR25 or MPR15 rectifiers have the following dimensions: • Height: 168 mm (6.60 inches) • Depth: 260 mm (10.25 inches) • Width: 149 mm (5.85 inches) Electrical Rectifier voltage and current The input current requirements of the MPR15 / MPR25 rectifier and the NT5C10 power shelves are listed in Table 3: Table 3 - MPR15/MPR25 input current requirements 1. 2. 3.
Specifications Output voltage Floating: -46 V DC to -57 V DC Equalizing: 0 to -2.5 V DC above float Output regulation: At the point of regulation: within +0.5% of the selected value for all specified input and output variations and within +1% for any combination of specified input, output and environmental conditions. Output protection: 30 A DC breaker Output current: at 96-132 V input * - 15 A for MPR15E/EX at 176264 V input – 25 A for MPR25E/EX Current limit: 17.
Specifications 19 Acoustical noise The rectifier does not produce sound levels above 60 dB with "A" weighting measured 1.5 m (5 ft.) above the floor and 0.5 m (2 ft.) from the rectifier, while operating at no load, partial load, or full load. Efficiency and power factor Efficiency is 88% at nominal input voltage of 208 V and maximum output load of 25 A at 54 V DC. Power factor is 0.60 at a nominal voltage of 208 V AC and a maximum load of 25 A with 0.5 ohm line impedance.
Specifications Humidity: 0 to 95% (non-condensing) Altitude: Sea level to 2100 m (7000 ft.) Transportation The following environmental limits must be observed during transportation: Temperature: -50° C to 75° C (-58°F to 167°F) Humidity: Up to 95% Relative Humidity at 25 mm (1 in.) of water vapor pressure. Vibration: 5.5 to 500 Hz. 3.5 g maximum (sinusoidal) 762 mm (30 in.) maximum drop (packaged) Pressure: 87.5 mm Hg at 15,200 m (50,000 ft.
Operation Rectifier operation The main AC line voltage is rectified and filtered to an unregulated high DC voltage. The input circuit provides EMI filtering, inrush current limiting, low and high AC inhibition, lightning and surge voltage protection, and input fault protection through an AC breaker. The high frequency isolating power section consists of a full bridge converter using power MOSFETs and a high frequency power transformer.
Operation Display and rear interface Display Figures 1 and 2 show the front and rear views of the fully equipped rectifier. Figure 1 - NT5C06B/C Rectifier (front view) EQUALIZE /FLOAT EQL SWITCH AND ADJUST FILTER OPTION FLT FAN ALARM FAN HVSD HVSD ADJUST ON/RFA RECTIFIER OK/FAIL DC CIRCUIT BREAKERS AC F1 OUTPUT TEST POINTS 3/4A 250V V+ . V- INRUSH CURRENT LIMIT FUSE LOAD CURRENT METER Local float / equalize control The rectifier is equipped with a momentary Float/Equalize switch.
Operation 23 Rectifier failure alarm (RFA) The rectifier incorporates facilities for monitoring its operational state and extends a global alarm upon detection of an internal failure or a no load condition (see Note below). When the rectifier operates in parallel with other rectifiers and its output voltage is adjusted lower, the RFA LED will change to RED and an RFA alarm will be sent. Note: Give an alarm at no load condition only for the following releases or under. NT5C06BB, BB-1, BB-3, BC Rel.
Operation Test points (V+, V-) Test points allow the user to measure the voltage at the point of regulation, whether the DC breaker is ON or OFF. A 10 K resistor is placed in series with the –48 V lead to prevent short circuits at the jack terminals. Current meter A three-digit output current meter, available on the enhanced model, reads the output shunt and displays the value using an integrated logic circuit.
Operation 25 Signal connector This connector provides control and monitoring signal access to the rectifier. Refer to the “Signal Connections” section for connection details. Power interface edge connector The rectifier AC, DC and chassis ground interface is made through the rear edge connector. Refer to the “Rectifier and Controller Interface Connections” section for connection and installation details.
Operation AC inrush current The AC current during the turn on sequence of the rectifier, under all input and output conditions specified in this document, will not exceed its full load steady-state value. Sequential start The rectifier Temporary Release (TR) leads are available for use with an external sequential start circuit. Parallel operation The rectifier is capable of operating in parallel with other rectifiers having similar output slope characteristics.
Operation 27 Output current monitor The rectifier monitors the output current. The unit will initiate an RFA alarm when no output current (see Note below) is detected during parallel operation. Note: Give an alarm at no load condition, only for the following releases or under. NT5C06BB, BB-1, BB-3, BC Rel.10 NT5C06CA, CA-1, CA-3, CA-5, CC Rel.10 NT5C06CB, CB-1, CB-3, CD Rel.12 NT5CO6CE-61(-46) Rel.
Operation Local/remote high voltage shutdown reset The rectifier may be reset from an HVSD condition locally, by resetting the AC circuit breaker (if so equipped), the associated AC breaker on the distribution panel, or remotely by applying a ground signal at the HVSDR input of the rectifier provided: • the 'TR' lead is not activated • the 'AC' (optional) and 'DC' breakers are closed Remote equalize control The rectifier is equipped with remote equalize control.
Operation 29 Figure 3 - Signal Connector 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 1 25 - REMOTE EQL SENSING RG + SENSING RC TEMPORARY RELEASE REMOTE HVSD RESET REMOTE HVSD RFA NC Not Connected FAN ALARM NC RFA COMMON FAN ALARM COMMON SHUNT + SHUNT FAN ALARM NO RFA NO GROUND SENSE COMMON SENSE NC SENSE NO Not Connected Not Connected Not Connected Not Connected Not Connected Not Connected Connector housing: AMP 211149-1 Crimp type pins (24-20 AWG): AMP 66103-1 PCB solder/wir
Operation Rectifier and controller interface connections Designation Description Signal RG+/RC- Sensing Leads battery or charge/discharge bus HVSD Remote High Voltage Shutdown Bat RTN HVSDR Remote High Voltage Shutdown Reset Bat RTN TR Remote Inhibit Bat RTN EQ Remote Equalize Bat RTN RFA Rectifier Failure Alarm Form C contacts F.ALM Fan Failure Alarm Form C contacts Shunt (+) and Shunt (-) Rectifier Current 50 mV at 25 A UM5C06B / C ( 169-2071-500 ) P0711722 Standard 10.
Power shelf Mechanical The power shelf provides housing for plug-in rectifiers and for an optional LVD. The power shelf provides power connections and signal access to the rectifiers.
Operation Embedded • In these shelf-specific applications (Table 4) the rectifiers are designed to fit signals that are brought out from the shelf through an open ended cable or as suited by the particular application requirements. • the AC input is either common bussed or individually fed, equipped or not, for EMI filtering to the rectifiers.
Operation 33 Table 5 - Modular power shelf embedded application signal availability PEC Code NT5C10BA-1 NT5C10BA-3 NT5C10BA-5 NT5C10BB-1 NT5C10BB-3 NT5C10BF-1 NT5C10BC-1 NT5C10BC-3 NT5C10BD-3 NT5C10BE NT5C10BM NT5C10BJ NT5C10BK NT5C10BL NT5C10BP NT5C10BQ-46 AC Com/ Indiv Common DC HSB EMI WIDTH SPECIAL LVD Color FLS FLT (inches) FEATURES PEC NOTES Brown HSB 19 NT6C13FM 1 NT6C13FE Brown Individual FLS 19 AC delay N/A signal Brown Common FLS 19 NT6C13FM 1 NT6C13FE Oxford Individual FLS 19 NT6C13FG Grey
Operation Note 2: When used with the I/F PCB option, order kit P0736446. Note 3: When used with an RPM1000C, order P0736447. Note 4: To use the optional AC Fail Alarm, order NT5C10KC A0627571.
Operation 35 NT5C10CA1/2 NT5C10CB1/2 NT5C10CB3/4 NT5C10CB5/6 NT5C10CC1/2 NT5C10CD1/2 NT5C10CE NT5C10CF NT5C10CG NT5C10CH NT5C10CO61 AC COM/ INDIV BROWN COM BROWN COM BROWN INDIV BROWN COM DOLPHING REY OXFORDGR EY DOLPHING REY BROWN COM DOLPHING REY DOLPHING REY DOLPHING REY DC OTP EMI 19/ 23 IN EQL RG+ RC- 19 P1-1 P1-2 P1-3 X 23 P1-1 P1-2 P1-3 X 23 P1-1 P1-2 P1-3 23 P1-1 P1-2 P1-3 X 23 P1-1 P1-2 P1-3 COM X 23 P1-1 P1-2 P1-3 INDIV X 23 P1-1 P1-2 P1-3 INDI
Operation Table 8 - List of abbreviations used in Tables 6 and 7 LEGEND RG Rectifier sense (+VC lead) O: Orange RC Rectifier sense (-VC lead) BL: Blue HVSDR High Voltage Shutdown Restart BK: Black HVDS High Voltage Shutdown BR: Brown RFA NC Rectifier Fail Alarm (normally closed contact) Y: Yellow FAN NC Fan Alarm (normally closed contact) W: White RFA C Rectifier Fail Alarm (common input) G: Green RFA MAJ Rectifier Fail Alarm - Major (multiple rectifier failures) S: Slate
Operation 37 Figure 5 - 23-inch power shelf (front view) Figure 6 - Power shelf NT5C10BJ or NT5C10BK (exterior view) 50A LOW VOLTAGE DISCONNECT NT6C13F REL ( ) SER NO ( ) UNIT EQL FA BOD RFA MIN LVD RFA MAJ FAN AC AUX FLOAT HVSD LVD LVR S1 HVSD BYPASS NORMAL LVD BYP RPM 1000C RS-232 F1 F2 POS( ) F3 F4 POS( ) Figure 7 - Power shelf NT5C10BJ or NT5C10BK (interior view) 12 11 10 9 8 7 6 5 4 3 2 1 12 11 10 9 8 7 6 5 4 3 2 1 CHASSIS CHASSIS GRD GRD CHASSIS GRD 25A Switch Mode RectifierNT5C06B / C
Operation Figure 8 - Power shelf NT5C10BM e/w EQL switch assembly NT5C10K SER NO REL NO EQL ON FLT POS( ) POS( ) POS( ) Figure 9 - Power shelf NT5C10CO equipped with start delay LED DELAYED MPS MAIN DELAYED Electrical When using the MPR25 rectifier, powered from 208 / 240 V AC 50 / 60 Hz single phase, the power shelf equipped with one, two, or three rectifiers has the following specifications: Condition: Typical input current value for 54 V dc, full load output = maximum input current at Out
Operation 39 Output current: one rectifier two rectifiers three rectifiers 25 A 50 A 75 A Note that when three phase 208 / 240 V AC lines are used to power more than one shelf, it is preferable to distribute the shelves equally among the phases. Use a 20 A breaker or FRN type fuse for individual AC. Use a 40 A breaker or FRN type fuse for two rectifiers, common AC. Use a 60 A breaker or FRN type fuse for three rectifiers, common AC.
Operation Environmental The power shelf is suitable for use with rectifiers equipped with the extended temperature option as well as with the standard temperature range. It is designed for use under the following environmental conditions: Temperature: -40°C to 65°C (-40°F to -149°F) Humidity: 0 - 95% (non-condensing) Altitude: Sea level to 2100 m (7000 ft.
Installation and start-up procedures Tools and test equipment The following tools and test equipment are required: • Potentiometer screwdriver Bourns Inc. No. 32 • Potentiometer screwdriver Bourns Inc. No. 60 • Screwdriver 3 inch • Digital voltmeter - Fluke 8000 A or equivalent • Dummy load Installation procedure Procedure 1 - Power shelf installation Step Action 1 2 Position the power shelf against the rack.
Installation and start-up procedures Figure 10 - 19-inch power shelf BLANK PANEL AC JUNCTION BOX POS 2 LVD POSITION DC CONTROL WIRING PO S 1 CLAMPING BAR Figure 11 - 23-inch power shelf BLANK PANEL AC JUNCTION BOX POS 3 POS 2 DC CONTROL WIRING POS 1 CLAMPING BAR UM5C06B / C ( 169-2071-500 ) P0711722 Standard 10.
Installation and start-up procedures 43 Figure 12 - 19-inch power shelf (NT5C10BF and NT5C10BP only) Cabling the power shelf The AC and DC cabling size and routing inside the shelf are determined by the following shelf configurations. Refer to Figures 13 to 20 for routing. Note: The grounding of the shelf is provided by the AC armored cable ground wire attached to a two-hole ground lug located on the inside wall of the shelf chassis.
Installation and start-up procedures Shelf configuration 19-inch system shelf (NT5C10CA-1/2) Capacity: -2 x MPR25 AC common cable: 2/8 AWG armored cable Reference Figure 13 (side) DC cables: 6 AWG (BAT and BAT RTN) Ref. Figure 19 (side) Figure 20 (rear) Signals 2 x 8 conductor cables terminated with connectors.
Installation and start-up procedures 45 19-inch embedded shelf (NT5C10BA-5/6,NT5C10BB-3/4) Capacity: - 2 x MPR25 + LVD AC common cable - 2/8AWG armored cable. Reference Figure 13 DC cables - 6 AWG (BAT and BAT RTN). Refer to Figure 19 (Side) and to Figure. 20 (Rear) Signals: - 1 cable (for remote sensing and alarm) 19-inch embedded shelf (NT5C10BB-1/2) Capacity: - 2 x MPR25 + LVD AC common cable: - 2/12 AWG armored cable. Refer to Figure 13 DC cables: - 6 AWG (BAT and BAT RTN).
Installation and start-up procedures 23-inch embedded shelf (NT5C10BC-3, NT5C10BD-3) Capacity: - 3 x MPR25 AC common cable: - 2/6 AWG armored cable. Refer to Figure 13 (Side) DC cables: - 4 AWG (BAT and BAT RTN). Refer to Figure 19 (side) and to Figure 20 (rear) Signals: - 1 cable (for remote sensing and alarm) 23-inch embedded shelf (NT5C10BM) Capacity: - 3 x MPR25 AC common cable: - 2/6 AWG armored cable. Refer to Figure 13 (side) DC cables - 4 AWG (BAT and BAT RTN).
Installation and start-up procedures 47 23-inch system shelf (NT5C10CO) Capacity: - 1 x MPR15 + 1 x MPR15 “Delay Start” AC common cable - 2/12 AWG armored cable. Refer to Figure 13 (side) DC cables - 6 AWG (BAT and BAT RTN). Refer to Figure 18 (side) and to Figure 19 (rear) Signals: - 2 cables (for remote sensing and alarm) Note : See Appendix B for additional information.
Installation and start-up procedures Figure 14 - Extra ground connection mounting location (optional) (Typical installation view for all shelf models) Figure 15 - Embedded shelf (left view) - individual ac - side access old vintage 4 3 2 1 UM5C06B / C ( 169-2071-500 ) P0711722 Standard 10.
Installation and start-up procedures 49 Procedure 3 - Individual AC connection - side access old vintage Step Action 1 2 3 4 Punch out 0.875-inch dia. knockout on left side of shelf. Mount conduit connector with a lock nut. Run and connect wires as illustrated. Re-install the blank panel to prevent access to the connections inside.
Installation and start-up procedures Figure 17 - System or embedded shelf (left view) - individual AC - side access ATTENTION L1 L2 L1 L2 L1 L2 6 5 4 3 CAUTI 2 1 FR GRD Procedure 5 - Individual AC connection - side access Step Action 1 2 3 4 Punch out the 0.875 in. dia. knockout on the left side of the shelf. Mount the conduit connector with a lock nut. Run and connect wires as illustrated. Re-install the blank panel to prevent access to the connections inside.
Installation and start-up procedures 51 Figure 18 - System shelf (left view) - common bussed AC - rear access L2 L1 Procedure 6 - Common bussed AC connection - rear access Step Action 1 2 3 4 Punch out the 1.125 in. dia. knockout on the left rear of the shelf. Mount the conduit connector with a lock nut. Run and connect the wires as illustrated. Re-install the blank panel to prevent access to the connections inside.
Installation and start-up procedures Figure 19 - System or embedded shelf (right view) - DC connecting - side access BR (+VDC) BAT (-VDC) Procedure 7 - DC connection - side access Step Action 1 Punch out the top two .875-inch dia. knockouts on the right side of the shelf. Insert the bushings, run and connect the wires as illustrated. Re-install the blank panel to prevent access to the connections inside. 2 3 –end– UM5C06B / C ( 169-2071-500 ) P0711722 Standard 10.
Installation and start-up procedures 53 Figure 20 - System or embedded shelf (right view) - DC cabling - rear access BR ( +V DC) BA T (-V DC) Procedure 8 - DC connection - rear access Step Action 1 Punch out the top two 0.875-inch dia. knockouts on the right rear of the shelf. Insert the bushings, run and connect the wires as illustrated. Re-install the blank panel to prevent access to the connections inside.
Installation and start-up procedures Table 9 - Standard system application signal cable connections: DESIGNATION DESCRIPTION SIGNAL ACTIVATES RG (+) and RC (-) Sensing Leads BAT RTN HVSD High Voltage Shutdown HVSDR High Voltage Shutdown Reset BAT RTN TR Remote Inhibit BAT RTN EQ Remote Equalize BAT RTN RFA Rectifier Failure Alarm Form C contacts FAN ALM Fan Failure Alarm Form C contacts When the rectifier is installed in an embedded shelf, the RC+, RG-, EQL (if equipped) and RFA m
Installation and start-up procedures 55 NT5C10BA-3/4 special operating signal - AC fail NC Originating from a time delay relay, this signal indicates the state of the line input voltage of the left rectifier in the shelf. This relay, which is normally closed, will open after a delay of 8 to 10 seconds following the removal of the AC line input. The indicator should be set to #6. Note : The standby HVSD rectifier should be adjusted 0.5 V higher than the main rectifier, and its float voltage 0.
Installation and start-up procedures Table 10 - J1, J2 and J3 connector pin assignment Connector J1 & J2 Connector J3 Pin Assignment Pin Assignment 1 EQL 1 EQL 2 RG+ 2 HVSDR 3 RC- 3 HVSD 4 N/C 4 RFA1 5 HVSDR 5 LOGIC RETURN 6 HVSD 6 RFA2 7 RFA 7 N/C 8 N/C 8 LVA Order cable assembly P0739814 to connect the alarm signals (J3) to the alarm monitoring unit. NT5C10BM The NT5C10BM power shelf (23 inch mounting) is wired to accept the NT5C10KB local equalize feature.
Installation and start-up procedures 57 NT5C10KC This option is offered to provide an AC Fail Alarm upon loss of the input line power. Selectable for 120 or 208 / 280 V AC operation, the circuit provides a dry C form contact relay, TB1-1 (NC) and TB1-2 (C), to send an alarm. See User Manual (UM) supplement P0803489 for more information. NT5C10CO This power shelf houses two rectifiers.
Installation and start-up procedures CAUTION Operating voltage If the NT5C06CB, CD or CE model is used, ensure that the nominal line voltage is 110 V AC. Operating the unit at 208 / 240 V AC will damage the unit. Cabling the rectifier The AC and DC cabling to the rectifier is provided directly by an internal wire harness in the power shelf.
Installation and start-up procedures 59 LVD installation in the shelf The LVD is installed in the right hand shelf position as describes in Procedure 10. Procedure 10 - LVD installation in the shelf Step Action 1 Release the clamping bar and blank panel (see Procedure 1). 2 Remove the LVD faceplate. 3 Slide the LVD about two thirds of the way into the shelf. 4 Connect the LVD as shown in Figure 22 and 23. (Use 2 X 10 AWG wires for contactors). 5 Re-install the small LVD faceplate.
Installation and start-up procedures Figure 23 - Embedded shelf - LVD connections - side access TO LOAD [T] BAT RTN 8 LOAD 2 1 BAT SENSE LEADS BAT CHASSIS GROUND [B] Start-up procedure Factory set voltage limits All rectifiers are factory set as follows unless otherwise requested by the customer: Float Voltage: MPR15 MPR25 52.10 V DC 48.00 V DC Equalize: HVSD: 0.70 V DC above float 59.00 V DC 0.00 V DC above float 56.50 V DC LVD/LVD Alarms Low Voltage Alarm (LVA): 47.
Installation and start-up procedures 61 Rectifier power-up If the factory set voltage limits need to be modified or verified, open the sense leads of all the rectifier positions to be turned on: • by disconnecting a quick disconnect tab of TB-1 on the power shelf or • by removing the controller sense fuse (system application) or • by setting the dip switches to the OFF position (system application) Then refer to the appropriate section for Float Voltage, HVSD or Equalize adjustments (see User Manual
Installation and start-up procedures Figure 24 - Embedded shelf quick disconnect for sense (sectional view) HVSD adjustment Procedure 12 - HVSD adjustment Step 1 2 3 4 5 6 7 Action Turn the HVSD potentiometer fully clockwise. Monitoring the test points (V+, V-), adjust the float potentiometer FLT to the desired HVSD level. Turn the HVSD potentiometer slowly counterclockwise until the rectifier shuts down. The test point voltage shall start decaying to 0 volt.
Installation and start-up procedures 63 Note: If the desired HVSD level is greater than the –57 V float limit, hold the FLT/EQL switch to EQL and use the EQL potentiometer to bring the float voltage to the desired HVSD level. Hold the switch through the following steps.
Installation and start-up procedures Parallel verification Note 1 : The following does not apply to rectifier shelf applications with the hot stand-by option. For delayed start shelf applications, wait after the delay expires before performing the next step. Note 2 : All the rectifiers in the shelf or system must have been individually adjusted as indicated in the Power up, HVSD adjustment, FLT adjustment and Equalize adjustment procedures before proceeding with the following steps.
Installation and start-up procedures 65 Procedure 15 - Parallel verification Step Action 1 It is recommended to leave the units functioning for at least 30 minutes to reach full stability prior to final adjustment. Turn all the DC breakers to the ON position. Turn all the AC breakers to the ON position.
Installation and start-up procedures Procedure 16 - Low voltage disconnect adjustment Step Action 1 Set the NORMAL/BYPASS switch to the BYPASS position. The TEST LED should light up. 2 Connect a digital voltmeter at the test jacks located at the front/bottom of the LVD unit. 3 Turn the test potentiometer slowly counterclockwise and verify when the LVA LED lights up. It should light up at -47 +/- 0.5 V. 4 Continue to turn the test potentiometer counterclockwise until the LVD LED lights up.
Installation and start-up procedures 67 Low voltage alarm (LVA) adjustment Procedure 18 - Low voltage alarm adjustment Step Action 1 Turn the test potentiometer counterclockwise until the voltage reading on the meter is -47 V. Turn LVA potentiometer R20 (located below the LVA LED) clockwise until the LVA LED lights up, or counterclockwise until it extinguishes. Reinstall the LVD unit faceplate removed in Procedure 17.
Installation and start-up procedures Procedure 19 - Low voltage disconnect/reconnect adjustment ( continued ) Step 5 6 7 8 Action The LVD LED should extinguish between -50 and -50.5 V. Adjust the voltage with the test potentiometer until the LVD LED extinguishes. If the LVD LED does not extinguish, turn the LVDR potentiometer slightly counterclockwise, or clockwise if the LED extinguishes before –50 V. To verify the adjustment, set the test voltage to -43.5 V.
Low voltage disconnect The LVD protects the batteries. The LVD disconnects the load from the batteries when a preset low voltage, which can cause permanent battery damage, is reached. The LVD is available in brown or grey (faceplate only). The nominal dimensions are 6.60 inches high, 10.25 inches deep, and 2.2 inches or 5.85 inches wide. The LVD is designed to be housed in the power shelf and is used primarily in embedded applications.
Low voltage disconnect DC cabling The DC cabling from the batteries, or shelf, to the Low Voltage Disconnect unit must be connected manually. Figure 25 illustrates the connections to be made. The “Installation and start up procedure” chapter indicates the sequence to be followed when the unit is installed in the power shelf.
Low voltage disconnect 71 Operation The battery voltage is monitored by the low voltage disconnect and low voltage alarm circuit (LVA). When the voltage drops to approximately -47 V DC, the LVA LED lights up and the alarm is extended to the terminal block. When the battery voltage drops to the low voltage disconnect level, the contactor opens, disconnecting the load from the battery. This turns the LVD LED ON and activates the low voltage disconnect alarm.
Low voltage disconnect This page is left blank intentionally. UM5C06B / C ( 169-2071-500 ) P0711722 Standard 10.
Maintenance Maintenance Rectifier Procedure 20 - Float/equalize and remote equalize Step Action 1 Disconnect the sense leads from the rectifier, by either disconnecting a quick disconnect tab TB1 on the shelf or removing the appropriate system fuse. (See the “Introduction” chapter for system applications.) Open the output DC breaker. The unit is ready for local adjustment. The unit should provide voltage to the front panel test point terminals. If it does not, cycle the AC breaker to reset the unit.
Maintenance Filter If the unit operates in a dusty environment the optional fan filter is recommended. It must be inspected and replaced, or thoroughly cleaned, at least every 12 months. CAUTION Do not install a wet filter in the unit. To remove the filter, simply unscrew it. Re-install it by reversing the operation. Fan cooling Visually inspect the intake of the airflow for any obstruction by foreign objects or excessive dust and dirt build-up.
Maintenance 75 Low voltage disconnect The LVD voltage adjustment levels should be verified periodically (preferably at intervals no greater than one year). Refer to the “Fault diagnosis” section found at the end of this chapter for the verification procedure. When the verification has been completed, set the Test/Bypass switch to the Normal position. The DC connections on the main contactor should be tightened with a torque wrench set at 70 in.-lb.
Maintenance Load sharing Verify that the sense leads of all the rectifiers are connected to a common point (across the battery or output power terminals of the power shelf, or at the discharge busbar). Readjust the rectifier’s float voltage until all the rectifiers share the load. It is recommended that the current from each rectifier be 3 amperes minimum for best results.
Maintenance 77 Procedure 21 - Fan replacement ( continued ) Step Action 4 Remove the four retaining screws which hold the chassis plate, fan and fan grill together (see Figure 27). Place the mounting clips on the replacement fan (if it is not so equipped). Mount the replacement fan in the same orientation as the old one, ensuring the wire is connected to the fan in the same manner. Ensure the orientation of the fins is such that the air is blown outwards when the fan is operated.
Maintenance Figure 27 - Fan assembly Low voltage disconnect In case of difficulty, follow the steps indicated below: Note : When the LVD is defective and has to be removed from the system, bypass the LVD externally (using a #6 AWG cable) to maintain power to the load. CAUTION Before readjusting the potentiometers set the test switch to the Test/Bypass position. UM5C06B / C ( 169-2071-500 ) P0711722 Standard 10.
Maintenance 79 Fault diagnosis Symptom: Low Voltage Test/Bypass LED lit LVA and LVD LED lit The LVD disconnects the load Possible cause The switch is on the Test/Bypass position Check the voltage level at the test jacks and the position of the Test switch. Verify the LVA and LVD adjustment. Set the test switch to the Test/Bypass position to verify their operation. Replace the circuit pack if it is still not operational. Verify the voltage at the test jacks.
Maintenance This page is left blank intentionally. UM5C06B / C ( 169-2071-500 ) P0711722 Standard 10.
References Figure 28 - System application power shelf MPS50S and MPS75S NT5C10 SYSTEM APPLICATION POWER SHELF 19" SHELF BROWN 23" SHELF BROWN NT5C10CA-1 COMMON AC NT5C10CB-1 COMMON AC EMI FILTER 3 RECTIFIERS 2 RECTIFIERS 23" SHELF DOLPHIN GREY 23" SHELF OXFORD GREY NT5C0CC-1 COMMON AC EMI FILTER 3 RECTIFIERS NT5C10CD-1 COMMON AC EMI FILTER 3 RECTIFIERS NT5C10CB-3 INDIV.
References Figure 29 - Embedded application power shelf MPS50E and MPS75E NT5C10 EMBEDDED APPLICATION POWER SHELF 19" SHELF BROWN 19" SHELF OXFORD GREY 19" SHELF BROWN 23" SHELF BROWN 23" SHELF OXFORD GREY 23" SHELF BROWN NT5C10BA-1 COMMON AC HOT/STANDBY 2 RECTIFIERS 1 LVD NT5C10BB-1 INDIVIDUAL AC 2 RECTIFIERS 1 LVD NT5C10BF-1 COMMON AC 2 RECTIFIERS 1 LVD OR 3 RECTIFIERS NT5C10BJ COMMON AC EMI FILTER 3 RECTIFIERS RPM1000C OPT LVD OPT NT5C10BC-1 INDIVIDUAL AC EMI FILTER 3 RECTIFIERS NT5C10BD-3
References 83 Figure 30 - Low voltage disconnect NT6C13 LOW VOLTAGE DISCONNECT FOR THE NT5C10 POWER SHELF NT6C13FA 5.85" WIDE BROWN NT6C13FC 5.85" WIDE GREY NT6C13FG 2.20" WIDE GREY NT6C13FH LVD CONTROL 289 A FINISH 800E CABINET NT6C13FE 2.20" WIDE BROWN NT6C13FJ 50A LVD E/W RPM1000C BROWN NT6C13FF RECTIFIER ADAPTER NT6C13FK 50A LVD E/W RPM1000C GREY NT6C13FM 2.
References Figure 31 - Power shelf wiring figure index Embedded application 19" Brown NT5C10BA-1 Fig. 33 NT5C10BA-3 Fig. 34 NT5C10BA-5 Fig. 32 Embedded application 19" Oxford grey NT5C10BB-1 Fig. 32 NT5C10BB-3 Fig. 32 Embedded application 19" Brown NT5C10BF-1 Fig. 34 Embedded application 23" Brown NT5C10BC-1 Fig. 38 NT5C10BC-2 Fig. 38 NT5C10BC-3 Fig. 38 NT5C10BJ Fig. 39 Embedded application 23" Oxford grey NT5C10BD-3 Fig. 35 NT5C10BK Fig. 40 UM5C06B / C ( 169-2071-500 ) P0711722 Standard 10.
References 85 Figure 32 – NT5C10BA-5/6 and NT5C10BB-1/2, 3/4 embedded application P1 EQL RG+ RC- REMOTE SENSE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 TB1 RFA 1 TO LOGIC RETURN EQL RG+ RCTR HVSDR HVSD RFA (NC) SPARE FAN ALM (NC) FAN ALM (NO) FAN ALM (C) SH+ SHRFA ALM (NO) RFA (NO) BAT GRD SEN (C) SEN (NC) SEN (NO) NC NC NC NC NC NC TO 1ST RECTIFIER CIRCUIT (POSN 1) P1 CONN AND LEADS ARE PART OF RECTIFIER P2 RFA 2 LVD J1 TO POWER SHELF DC TERMINAL LV ALM BAT GRD -48V BAT
References Figure 33 – NT5C10BA-1/2 embedded application P1 EQL RG+ RC- REMOTE SENSE TB1 (WHITE) RFA MIN (BROW N) TO LOGIC RETURN 5 NC K1 8 C NO STANDBY RECTIFIER 4 7 K1 -48V BAT TO DC TERMINAL K1 2 3 NO NC 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 EQL RG+ RCTR HVSDR HVSD RFA (NC) SPARE FAN ALM (NC) FAN ALM (NO) FAN ALM (C) SH+ SHRFA ALM (NO) RFA (NO) BAT GRD SEN (C) SEN (NC) SEN (NO) NC NC NC NC NC NC TO 1ST RECTIFIER CIRCUIT (POSN 1) P1 CONN AND LEADS ARE PAR
References 87 Figure 34 - NT5C10BA-3/4 embedded application TB1 P1 1 RG + (BLU E O N E W HITE DO T) RC - (W HITE O NE BLU E DO T) R FA (NC ) EQ L RG + 2 RC 3 TR 4 FAN A LM (NC) H VSDR 5 R FA (C) H VSD 6 FAN A LM (C) (BLUE O N E RED DO T ) RFA (N C ) 7 SPARE 8 (G REEN ON E R ED DO T) (RED O NE B LUE DO T ) (RED O NE G RE EN DO T) FAN A LM (N C) 9 RFA (C) 10 FAN A LM (C) 11 SH + 12 R FA (NC ) 13 FAN A LM (NC) 14 RFA (C) TO FIRST RECTIFIER CIRCU IT (PO S.
References Figure 35 - NT5C10BD embedded application TB1 1 2 1 RG + (BLACK) RC - (RED) TO MAINT & LOCK CONNECTOR P1 EQL RG + 2 3 5 6 RFA (NC) (BAT GRD) (WHITE) 7 8 9 10 11 14 15 16 17 18 19 HVSD 5 RFA (NC) 6 SPARE 7 FAN ALM (NC) SH + 12 13 4 FAN ALM (C) RC TR HVSDR HVSD RFA (NC) SPARE 8 TO FIRST RECTIFIER CIRCUIT SH RFA ALM (NO) RFA (NO) BAT GRD SEN (C) SEN (NC) SEN (NO) NC 20 EQL RG + 3 HVSDR RFA (C) P2 2 TR 4 3 1 RC - FAN ALM (NC) 9 RFA (C) 10 FAN ALM (C) 1
References 89 Figure 36 - NT5C10BD and NT5C10BP embedded application J6 TO MONITORING CIRCUIT RG+ RC- TB1TB12 1 RFA TB15 J1 TB13 TB14 J2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 : 25 J4 TB2 -48 V OUTPUT BR NSR TB2 -48 V TB16NSR 1 7 NSR B A D1 J2 T K3 TO LOAD AS REQUIRED B TB 1 1 2 LVD 3 LVD (C) TO MONITORING CIRCUIT LVD (NC) LVD (NO) LVA 5 LVA (NC) 6 LVA (C) LVA (NO) 4 7 8 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 : 25 LVD 1 2 3 4 5 6 7 8 9 10 11 1
References Figure 37 - System application - NT5C10CA-1/2, NT5C10CB-1/2, 3/4, 5/6, NT5C10CC-1/2, NT5C10CD-1/2, NT5C10CE-1/2, NT5C10CF-1/2, NT5C10CG, NT5C10CH P0745672 P0714580 CA ASSY (22-8 COND) J1 P1 1 2 TO MONITORING CIRCUIT FIRST APPEARANCE 3 4 5 6 7 8 EQL RG+ RGFAN ALM HVSDR HVSD RFA (NC) TR NC RFA (C) FAN ALM (C) NC NC NC NC BAT GRD NC NC NC NC NC NC NC P1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 25 UM5C06B / C ( 169-2071-500 ) P0711722 Standard 10.
References 91 Figure 38 - Embedded application - NT5C10BC-1, NT5C10BC-2, NT5C10BC-3, NT5C10BM 25A Switch Mode RectifierNT5C06B / C Installation and User Manual
References Figure 39 - Embedded application NT5C10BJ, NT5C10BK e/w RPM1000C and LVD Kit P0736441 CA ASSY EQL P1 2 RCTO RPM UNIT JE1 3 FAN ALM (NC) RC- (POS 2) 4 HVSDR HVSDR 5 HVSD 6 RFA (NC) 7 TR NC RFA (C) FAN ALM SPARE 8 FAN ALM (NC) 9 RFA (C) 10 FAN ALM (C) 11 NC 12 NC 13 SH+ SHFAN ALM (NO) NC 14 NC 15 BR RFA (NO) BR 16 TO RFA COM OF OFFICE ALARM CIRCUIT NC 17 NC 18 NC 19 NC 20 NC 25 SEN (C) SEN (NC) SEN (NO) NC NC P1 EQL EQL 1 RG+ RG+ 2 RC- RC-
References 93 Figure 40 - Embedded application NT5C10BJ, NT5C10BK e/w RPM1000C and LVD Kit .
References Figure 41 - Embedded application NT5C10BJ, NT5C10BK e/w LVD and I/F Circuit Pack Kit P0736441 CA ASSY J4 P1 EQL EQL 1 RG+ RG+ 2 RCTO I/F CKT PACK J1 RC- 3 FAN ALM (NC) PART OF RECTIFIER NT5C06 TYPE (POS 2) TR 4 HVSDR HVSDR 5 HVSD HVSD 6 RFA (NC) RFA (NC) 7 TR NC SPARE 8 FAN ALM (NC) RFA (C) FAN ALM 9 RFA (C) 10 FAN ALM (C) 11 BR NC 12 NC 13 NC 14 NC 15 SH+ SHFAN ALM (NO) RFA (NO) BR 16 SEN (C) NC 17 NC 18 NC 19 NC 20 NC NC 25 NC SEN (NC)
References 95 Figure 42 - Embedded application NT5C10BJ, NT5C10BK e/w LVD and I/F Circuit Pack Kit P0736441 CA ASSY NT5C10PC I/F CKT PACK PART OF KIT P0736446 CA ASSY PART OF NT5C10PC CKT PACK TO -48VDC OUTPUT RG+ P0736442 CA ASSY NT6C13FA OR FC LOW VOLTAGE DISCONNECT (PROVIDED PER MS5C10) (2) 10AWG TO LOADS 0/ AS REQ'D CA ASSY PART OF NT5C10PC CKT PACK RC- -48V (K1) CNTOR BR -48V LVA ALM LVA COM NT6C13PB CKT PACK TB1 1 BAT GRD 2 -48V DC 3 NC LVD 4 C ALM 5 NO 6 NC LVA 7 C 8 NO RFA COM E1 J1
References Figure 43 - Embedded application NT5C10BL P1 P0713173 CA ASSY RG+ TB1 J6 NC RFA (NC) RG+ 2 RC- TO MONITORING CIRCUIT EQL 1 RC- 3 NC 4 NC 5 NC 6 TR HVSDR HVSD RFA (NC) 7 NC 8 NC 9 10 NC 11 NC 12 NC 13 NC 14 NC 15 SPARE FAN ALM (NC) RFA (C) FAN ALM (C) SH+ SHFAN ALM (NO) RFA (NO) BR 16 SEN (C) NC 17 NC 18 NC 19 NC 20 NC NC 25 NC J4 SEN (NC) SEN (NO) P1 EQL NC 1 RG+ RC- 2 3 NC 4 NC 5 NC 6 NC 8 9 10 NC 11 NC 12 NC 13 NC 14 NC
References 97 Figure 44 - Embedded application NT5C10BM e/w NT5C10KB P0729941 CA ASSY J6 TO -48 VDC OUPUT BR P1 EQL 1 TB1 RG+ 2 3 -48V NC 4 NC 5 NC 6 RFA (NC) RCTR HVSDR HVSD RFA (NC) 7 TO MONITORING CIRCUIT NC SPARE 8 9 NC RFA (C) FAN ALM (NC) RFA (C) 10 NC NC 11 NC 13 NC FAN ALM (C) SH+ 12 NC 14 15 NC 16 NC 17 SHFAN ALM (NO) RFA (NO) BR SEN (C) SEN (NC) NC 18 NC 19 NC 20 NC NC 25 NC J4 SEN (NO) P1 EQL 1 2 RG+ RC- 3 TO EQL SWIT CH P0740775 CABLE ASSY
References Figure 45 - System application NT5C10CO PART OF P0724080 CA ASSY FROM J2 NT5C10PD TIME DELAY CKT PACK J1 EQL RG+ 1 2 RCFAN ALM (NC) 3 4 HVSDR HVSD RFA (NC) J3 4 5 FROM J4 1 RG+ RC- 2 FAN ALM (NC) HVSDR 4 5 6 HVSD RFA (NC) TR HVSDR TO MONITORING CIRCUIT HVSD 6 7 8 J2 EQL RG+ RCFAN ALM (NC) 2 3 5 6 7 8 TR EQL 1 RFA(NC) TR J4 1 2 3 3 4 5 6 7 7 8 8 EQL RG+ RCFAN ALM (NC) HVSDR TO MONITORING CIRCUIT HVSD RFA(NC) TR TO -48VDC OUTPUT TB1 TB2 TO AC SUPPLY PART OF
References 99 Figure 46 - Application NT5C06B/C FIG.
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Appendix A: NT5C10BF-1 and NT5C10BP Purpose This appendix provides additional information about the NT5C10BF-1 (brown) and NT5C10BP (grey). Application The NT5C10BF-1 and NT5C10BP power shelves are used in the FTIP and FTOP application. This power shelf provides housing for two MPR15E rectifiers plus one 50 A LVD, FTIP application, or three MPR25EX rectifiers, FTOP application.
Appendix A: NT5C10BF-1 and NT5C10BP Alarms Available alarms for monitoring the status of the FTIP power system are as follows: LVA Battery Return (RTN) LVDA Battery Return (RTN) RFA Battery Return (RTN) NSR (No Standby Rectifier) Battery Return (RTN) Power and signal lead termination The power and signal cables are terminated as follows: a) b) Power cables: -Battery Return (RTN A) -Battery (-48 A) TB1-1 (white with red tracer) TB1-2 (Red) Signal cables: -Negative Sense (RC-) -Positive Sense (RG+)
Appendix A: NT5C10BF-1 and NT5C10BP 103 During transfer from a failed “MAIN” unit to a ‘STANDBY” unit the load current will be supplied by the backup batteries. The standby unit will provide the required current within 10 seconds.
Appendix A: NT5C10BF-1 and NT5C10BP General requirements Power shelf size The NT5C10BF-1 and NT5C10BP power shelves are designed specifically for the FTIP/FTOP application. They measure 17.0 inches W x 7.0 inches H x 12.0 inches D. They provide housing for up to three MPR25EX (NT5C06BB) SMRs (FTOP application), or two MPR15E (NT5C06CB/CD) SMRs plus one 50 A LVD module (NT6C13FA) (FTIP application). The middle rectifier is wired as Standby.
Appendix B: NT5C10CO shelf General This appendix contains supplementary information for the NT5C10CO "DELAYED START" power shelf. NT5C10CO power shelf Description The power shelf houses two rectifiers. One rectifier operates in the standard mode (no delay) and the other is inhibited for a fixed time after an AC power failure.
Appendix B: NT5C10CO shelf Technical specifications WARNING The power shelf must be connected to 120 V AC and a 20-ampere circuit. The AC receptacle must be rated 20 amperes and wired with #12 AWG. Non-conformance to these requirement may cause the AC breaker/fuse at the AC distribution cabinet to open, under certain operational conditions, resulting in loss of power for both rectifiers. Input AC: 120 V AC/18 A Power system maximum load: 6 A typical to 10 A maximum.
Appendix B: NT5C10CO shelf 107 Power-up and verification Verification For systems equipped with the NT5C10CO power shelf, proceed as indicated in Procedure 22. Procedure 22 - Power-up and verification Step Action 1 Verify that the AC circuit breakers of the rectifiers are in the “OFF” position. 2 Release the clamping bar of the power shelf, by loosening the two retaining screws. 3 Remove the right blank panel from the power shelf by removing the retaining screw, pushing it up and pulling it out.
Appendix B: NT5C10CO shelf OPEN CLOSED 6 5 4 3 2 1 The above settings will provide a delay of approximately 24 hours, which is sufficient to charge the batteries with a reserve of 80 to 120AH, and at the same time supply power to a 10 A load. When the load is 6 A, or less on a battery reserve of less than 80AH, open the SW1-4 and close the SW1-3 for a delay of 12 hours. Adjustment and verification The following steps are required to verify the system’s operation.
Appendix B: NT5C10CO shelf 109 Procedure 23 - Adjustment and verification ( continued ) Step Action 6 Close and open the SW1-6 switch (timer reset). 7 Verify for the following: • The "DELAYED START" yellow LED at the circuit pack is • The RFA red LED of the rectifier at the "DELAYED START" position is lit. • The operation of the rectifier at position "MAIN" is normal. lit. • 8 9 10 No RFA alarm signal shall be sent to the system monitoring circuit.
Appendix B: NT5C10CO shelf OPEN CLOSED 6 5 4 3 2 1 Note 1: At this point, one rectifier may indicate an RFA. An RFA may be indicated when a rectifier delivers less than 0.1 A (see Note 2). Turning the FLT potentiometer slightly clockwise will return it to normal operation, with no RFA. Note 2: Sends an alarm at no load condition, only for the following releases or under. NT5C06BB,BB-1,BB-3,BC Rel.10 NT5C06CA,CA-1,CA-3,CA-5,CC Rel.
Appendix B: NT5C10CO shelf 111 The above settings will provide a delay of approximately 24 hours, which is sufficient to charge the batteries with a reserve of 80 to 120AH and at the same time supply power to a 10 A load. When the load is 6 A, or less on a battery reserve of less than 80AH, open SW1-4 and close SW1-3 for a delay of 12 hours. Troubleshooting The following are recommended steps for analyzing possible malfunctions of a system equipped with an NT5C10CO power shelf.
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Appendix C: Recommended replacement parts ITEM CPC Air Filter Kit A0370200 Fan Assembly P0710139 Fuse 3/4 A, 250 V (F1) A0351850 25A Switch Mode RectifierNT5C06B / C Installation and User Manual
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Appendix D: Technical service assistance For technical assistance, 24-hours a day / 7 days a week, dial one of the following toll-free numbers. This service complements the services offered by field support organizations such as, the Emergency Technical Assistance Service (ETAS), and the Installation Technical Assistance Service (ITAS). Local toll-free prefixes The following prefixes give access to toll-free numbers in various countries.
Appendix D: Technical service assistance Toll-free technical assistance numbers United States: *1 1-800-992-8417 Canada: 1-800-363-2288 In Europe: Austria 800-213-49156 Belgium 800-213-49156 Denmark 800-213-49156 Finland 800-213-49156 France 800-213-49156 Germany 800-213-49156 Ireland 800-213-49156 Italy 800-213-49156 Netherlands 800-213-49156 Norway 800-213-49156 Sweden 800-213-49156 Switzerland 800-213-49156 *1 United Kingdom 800-213-49156 In Asia and the Pacific: Australia 800-213-49156 Hong K
Abbreviations and acronyms ALM Alarm C Common EMI Electromagnetic Interference EQL Equalize HVSD High Voltage Shutdown LED Light Emitting Diode LVA Low Voltage Alarm LVD Low Voltage Disconnect LVDR Low Voltage Disconnect/Reconnect MPR Modular Power Rectifier MPS Modular Power Shelf NC Normally Closed NO Normally Open NSR No Standby Rectifier NSR No Standby Rectifier PCB Printed Circuit Board RFA Rectifier Fail Alarm TR Temporary Release FAN ALM Fan Alarm MPR25 / MP
Abbreviations and acronyms This page is left blank intentionally 167-2071-500 Standard 8.
MPR25 / MPR15 Series, Single Phase -48V, 25A Switch Mode Rectifier NT5C06B/C Installation and User Manual Astec Advanced Power Systems 2280 Alfred-Nobel Blvd St-Laurent ( Quebec ) Canada H4S 2A4 Copyright 2001 Astec Advanced Power Systems Ltd All Rights Reserved The information contained in this manual is the property of Astec Advanced Power Systems and is subject to change without notice.
