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GMI PSS1250-HS-7-48-D Instruction & Safety Manual

Sil 3 power supply system pss1250(-hs)-7-48-d 48 vdc - 50 a, 19'' rack with 4 power modules psm1250 and diagnostic module pso1250
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PSS1250-HS-7-48-D, PSS1250-7-48-D
INSTRUCTION & SAFETY MANUAL
SIL 3 Power Supply System PSS1250(-HS)-7-48-D
48 Vdc - 50 A,
19'' Rack with 4 power modules PSM1250
and diagnostic module PSO1250
G.M. International s.r.l.
20852 Villasanta MB Italy
PSS1250(-HS)-7-48-D - SIL 3 Power Supply System, 48 Vdc, 50 A
G.M. International ISM0528-1

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Summary of Contents for GMI PSS1250-HS-7-48-D

  • Page 1 PSS1250-HS-7-48-D, PSS1250-7-48-D INSTRUCTION & SAFETY MANUAL SIL 3 Power Supply System PSS1250(-HS)-7-48-D 48 Vdc - 50 A, 19’’ Rack with 4 power modules PSM1250 and diagnostic module PSO1250 G.M. International s.r.l. 20852 Villasanta MB Italy PSS1250(-HS)-7-48-D - SIL 3 Power Supply System, 48 Vdc, 50 A...

  • Page 2: Table Of Contents

    Warning ........................................6 Storage ........................................6 Disposal ........................................6 Functional Diagram for PSS1250-HS-7-48-D or PSS1250-7-48-D......................7 Functional Safety Manual and Applications (for models with HS) ......................8 Functional Safety Manual and Applications (for models without HS) ...................... 10 Testing procedure at T-Proof ................................... 12 System Composition ....................................

  • Page 3: General Characteristics

    For more information about different configurations see page 4. Hot Swap Plug-ins: When using rack PSS1250-HS-7-48-D, each PSM1250 power supply module can be placed without disturbing Power Supply operations. Diagnostic: Rack PSS1250(-HS)-7-48-D, accept a plugin module (PSO1250) dedicated to monitoring all diagnostic functions of each power supply, via a front panel touch screen LCD color display which indicates Input/Output Voltage, Current and Power;...

  • Page 4: Features

    Back Panel PCB Configuration Ordering code of PSS1250 NOT included rack slot items Swapping PSM1250 : needed 4 pieces PSS1250-HS-7-48-D-W plugged into 4 slots 19 inches wide rack (1st & 2nd + 5th & 6th) PSO1250 : 1 piece (optional)

  • Page 5: Hot Swapping Capability

    PSM1250 (6th Module) PSS1250-HS-7-48-D Power Supply System with Hot Swapping (HS) capability is able to provide power and it is fully protected from the Hot Swapping of any power, or diagnostic, module. This protection system operates for both the insertion and disconnection of the modules.

  • Page 6: Active Ideal Diode-Or Circuit

    Reasons for using an Ideal Diode-OR Controller circuit, in N+1 redundant power supply applications with high availability systems High availability systems often employ power supply modules connected in parallel to achieve redundancy and enhance system reliability. ORing diodes have been a popular means of connecting these supplies at a point of load. The disadvantage of this approach is the forward voltage drop and resulting efficiency loss. This drop reduces the available supply voltage and dissipates significant power.

  • Page 7: Functional Diagram For Pss1250-Hs-7-48-D Or Pss1250-7-48-D

    NON HAZARDOUS LOCATIONS PSS1250-HS-7-48-D or PSS1250-7-48-D, dual AC supply, 1 redundant 48 Vdc - 50 A Output, PSO1250 overview module Series of two groups, each with two paralleled PSM1250 modules, to provide full redundancy on AC lines (AC1 and AC2) and one 48 Vdc - 50 A redundant output.

  • Page 8: Functional Safety Manual And Applications (For Models With Hs)

    Functional Safety Manual and Application 1) Application with HS capability and NE output load 1st Group 2nd Group 1st and 2nd modules 5th and 6th modules PSM1250 PSM1250 PSM1250 touch screen PSM1250 Module Position Module Position Module Position color dislpay Module Position number 1 number 2...
  • Page 9 Functional Safety Manual and Application 2) Application with HS capability and ND output load 1st Group 2nd Group 1st and 2nd modules 5th and 6th modules PSM1250 PSM1250 PSM1250 touch screen PSM1250 Module Position Module Position Module Position color dislpay Module Position number 1 number 2...

  • Page 10: Functional Safety Manual And Applications (For Models Without Hs)

    Functional Safety Manual and Application 3) Application without HS capability and NE output load 1st Group 2nd Group 1st and 2nd modules 5th and 6th modules PSM1250 PSM1250 PSM1250 touch screen PSM1250 Module Position Module Position Module Position color dislpay Module Position number 1 number 2...
  • Page 11 Functional Safety Manual and Application 4) Application without HS capability and ND output load 1st Group 2nd Group 1st and 2nd modules 5th and 6th modules PSM1250 PSM1250 PSM1250 touch screen PSM1250 Module Position Module Position Module Position color dislpay Module Position number 1 number 2...

  • Page 12: Testing Procedure At T-Proof

    Diagnostic module in Pos.7 (PSO1250) with TFT LCD touch color screen for diagnostic information about each power module. This Fig.1 can be also used for PSS1250-HS-7-48-D-F system (frontal rack mounting into a cabinet) because this system differs to the previous one only for the rack unit mechanical structure and not for the connections between components: Instead, the PSS1250-7-48-D-W or F system (without HS capability) differs to Fig.1 system only for...
  • Page 13 Installation Procedure - 2nd step: Wiring of AC input lines, faults and modbus terminal blocks on Back Panel PCB of PSS1250-xx-7-48-D The following picture shows for example the terminal block wiring of PSS1250-HS-7-48-D Back Panel PCB. For PSS1250-7-48-D Back Panel PCB, the terminal block wiring is the same.

  • Page 14: Installation Procedure - 3Rd Step: Rack Unit Installation On Back Plane For Pss1250-Xx-7-48-D-W (Wall Mounting Into A Cabinet)

    Installation Procedure - 3rd step: Rack unit installation on Back Plane for PSS1250-xx-7-48-D-W (wall mounting into a cabinet) The following drawing shows overall dimensions (mm) of PSS1250-xx-7-48-D-W, with Rack unit mounted on related Back Plane with its PCB. Fix the Rack unit to 6 wall mounting panel bolts (3 on the right side and 3 on the left side) by means of 6 M6 nuts and groovers. Side view Front view Tighten nuts and...

  • Page 15: Installation Of Pss1250-Xx-7-48-D-F (Frontal Rack Mounting Into A Cabinet)

    Installation Procedure - 3rd step: Installation of PSS1250-xx-7-48-D-F (frontal rack mounting into a cabinet) The following drawing shows overall dimensions (mm) of PSS1250-xx-7-48-D-F, where Rack unit and Back Plane with its PCB are already fixed together. Fix the PSS1250 to the rack rails of a cabinet, as frontal rack mounting, matching 4 holes of Rack unit lugs (2 on the right side lug and 2 on the left side lug) with rail holes and fixing with 4 screws and related nuts.

  • Page 16: Installation Procedure - 4Th Step (For Models With Hs) - Section A : Hs Setup

    Back Panel PCB for Hot Swapping control Fig. 3 shows PSS1250-HS-7-48-D Back Panel PCB with a 12 poles male connector, which must be connected with the flat cable coming from the microswitches PCB of the Rack unit. In the Fig. 2-3-4-5 is shown how to connect this flat cable for PSS1250-HS-7-48-D system.

  • Page 17: Section B : Installation & Start Up Of Pso1250

    4 screws to fix it to the For example is only shown rack unit. a PSS1250-HS-7-48-D-W system, for wall mounting into a cabinet. After installation of the PSO1250 module, power AC1 and AC2 input power lines in order to turn on diagnostic module.

  • Page 18: Section D : Installation And Pre-Start Up Of Psm1250

    This step could be not executed if PSS1250-HS-7-48-D output voltage factory setting to 48 Vdc is corrected for your applications. Instead, execute this step if it’s necessary to set up a different value for PSS1250-HS-7-48-D output voltage in the range 42 to 56 Vdc.

  • Page 19: Section E : Wiring Of 1St&2Nd Psm1250 Negative Dc Out Lines

    Installation Procedure - 4th step (for models with HS) - Section E: Wiring of 1st & 2nd PSM1250 screw output terminals on copper bars of Back Panel PCB (PSS1250-HS negative DC out lines) At this step, PSO1250 diagnostic module is installed and fixed to rack unit with 4 screws, while each PSM1250 power module is installed and fixed to rack unit with 2 bottom screws only (2 top screws are unplugged to keep PSM1250 shutdown).

  • Page 20: Section F : Wiring Of 5Th&6Th Psm1250 Positive Dc Out Lines & Pss Start-Up

    Now power AC1 and AC2 input power lines. PSO1250 diagnostic module (if it’s present) and each PSM1250 power module turn on and the PSS1250-HS-7-48-D system DC output lines will power the load. PSS1250(-HS)-7-48-D - SIL 3 Power Supply System, 48 Vdc, 50 A...

  • Page 21: Installation Procedure - 4Th Step (For Models Without Hs) - Section A: Installation & Start Up Of Pso1250

    Installation Procedure - 4th step (for models without HS) - Section A: Installation and start up of PSO1250 Diagnostic Module Insert the PSO1250 diagnostic module in the last position (7th) on the right of the Rack unit and fix the module to the Rack unit by means of its 4 screws on its front side. Front side of PSO1250 with its 4 screws to fix it to the For example is only shown...

  • Page 22: Section B: Installation And Pre-Start Up Of Psm1250

    DC1- and DC2- are also DC5+ and DC6+ are also positive out poles of negative out poles of of PSS1250-7-48-D. of PSS1250-HS-7-48-D. 2nd PSM1250 screw output terminals 6th PSM1250 screw output terminals on copper bars: on copper bars: DC2- is its negative out pole, DC6- is its negative out pole, DC2+ is its positive out pole.

  • Page 23: Section C: Wiring Of 1St&2Nd Psm1250 Negative Dc Out Lines

    Installation Procedure - 4th step (for models without HS) - Section C: Wiring of 1st & 2nd PSM1250 screw output terminals on copper bars of Back Panel PCB (PSS1250-HS negative DC out lines) At this step AC1 and AC2 input power lines are unpowered, PSO1250 diagnostic module (if it’s present) is installed and fixed to Rack unit with 4 screws, while all PSM1250 modules are disconnected.

  • Page 24: Section D: Wiring Of 5Th&6Th Psm1250 Positive Dc Out Lines & Pss Start-Up

    Installation Procedure - 4th step (for models without HS) - Section D: Wiring of 5th & 6th PSM1250 screw output terminals on copper bars of Back Panel PCB (PSS1250-HS positive DC out lines) & PSS start-up At this step, AC1 and AC2 input power lines are unpowered, PSO1250 diagnostic module (if it’s present) and all PSM1250 modules are installed and fixed to Rack unit with 4 screws. To wire positive DC output lines (DC5+ and DC6+ screw output terminals) of PSS1250 system, see Fig.

  • Page 25: Shutdown And Disconnecting Procedure Of Psm1250 Power Module From The Rack Unit: - For Models With Hs

    Shutdown and Disconnecting Procedure of PSM1250 power module from the Rack unit : - for models with HS Disconnection of PSM1250 module from the Rack unit, can be done without switching off the power from AC1 and AC2 lines, because of the fully redundant configuration from the input to the output of the power system.

  • Page 26: Pso1250 Diagnostic Module: Features And Set Up

    PSO1250 Diagnostic Module: features and set up Communication with four power modules is achieved via PSO1250 diagnostic module, which incorporates a front panel color touch screen. The diagnostic module is able to query each power modules (using an internal proprietary bus) and read data such as: Input/Output Voltage, Current and Power; Input Line Frequency; Output current sharing percentage; Current sharing group;...
  • Page 27 PSO1250 Diagnostic Module: features and set up This image is shown when touching the “Set Time” cell This image (numeric board) is shown This image (numeric board) is shown when in the set up menu screen. Here is possible to set when touching the “Set Year”...
  • Page 28 PSO1250 diagnostic module: features and set up Touching “5 POS” cell on the main menu screen, This is PSM1250 module 5 (Pos.5) second page PSM1250 module 5 (Pos.5) first page data are where other data are shown. Touch “Back” cell to shown.
  • Page 29 PSO1250 Diagnostic Module: features and set up Capacitor out voltage or out voltage before active The PSM1250 module 6 (Pos.6) is in fault condition because of: AC line absence which implies internal ideal diode is 16.5 V but out DC or out group voltage (after active ideal diode) is 24.1 V.
  • Page 30 PSO1250 diagnostic module: features and set up The fault is due to Fan B malfuction, because its The PSM1250 module 1 (Pos.1) is in fault condition The fault is due to Fan A malfuction, because its speed is 5850 < 11550 rpm setting, that is Fan B because its “1 POS”...

  • Page 31: Supported Modbus Parameters: Functions And Details

    Supported Modbus parameters: functions and details Below is a list of all available registers for communication via Modbus RTU RS-485 protocol. Addr. Description Notes Type Addr. Description Notes Type (15) (15) G.M. Factory Code PSM1250 Internal temperature Instrument Code Input active power Identification Option Code Output power...
  • Page 32 Supported Modbus parameters: Address 92: (1st PSM1250) Address 114: (2nd PSM1250) Secondary side extra Addr. Description Notes Type (14) Address 180: (5th PSM1250) fault information Chars 0, 1 Address 202: (6th PSM1250) Chars 2, 3 High Byte Low Byte Chars 4, 5 Bit position Chars 6, 7 PSS1250 Tag...

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