MEN Mikro PU3 Manual
Contents
1. The temperature limit can be read via the SMBus The temperature value is specified by the corresponding ADC value according to the following formula 3 ADCvalue 255 did 0 0156 t The following table shows how the ADC values correspond to the temperature in C Table 22 Temperature representation ADC Value Temperature C 0x28 0 Ox2A 1 0x2B 2 0xAO 90 MEN Mikro Elektronik GmbH 31 20AD78 00 E4 2011 09 12 Functional Description 3 6 10 The ID of the PSU and the firmware revision number can also be read via SMBus commands See Table 23 SMBus commands for PSU ID and firmware revision number on page 32 PSU ID and Firmware Revision Number Table 23 SMBus commands for PSU ID and firmware revision number Command Data Name Code Range Type Description AD78C ID OxFE 0x78 r ID of PSU AD78C REV OxFF 0x00 r Firmware revision of PSU OxFF 3 7 DC DC Converter The power supply unit provides a DC DC converter to generate isolated 5 V 4 596 3 with 7 A from the input voltage An additional buck regulator generates 3 3 V 3 from the 5 V isolated side The maximum power with full load is 35 W Note The DC DC converter is on while the input voltage is connected See Table 24 Maximum no load input power of DC DC converter on page 32 for max imum no load input power The maximum output current of 3 3 V is 5 A For output voltage to2. OFF delay no enabled SMB OFF OFF Delay acknowledge timeout yes v v System OFF ERROR OFF signalize with blinking POWER LED MEN Mikro Elektronik GmbH 20AD78 00 E4 2011 09 12 Functional Description 3 6 8 Voltage Supervision Input and output voltage are supervised by the microcontroller The status of the input and output is shown by two LEDs at the front panel see Chapter 3 5 Status LEDs on page 21 The microcontroller firmware supervises the 5 V output voltage of the DC DC converter When the voltage is over 5 5 V the microcontroller switches off the output power and enters error off state When the voltage is below 4 8 V the firmware of the microcontroller resets the system for the time of undervoltage The output voltage is measured using the microcontroller internal ADC function The ADC value which represents the output voltage can be read via the SMBus command AD7 amp C_VOLT see Table 19 SMBus command for voltage supervision function on page 30 The voltage values are specified through their corresponding ADC value The read ADC values correspond to the voltage value according to the following formula _ 6 ADCValue u 255 V In order to provide stable voltage reference a 3 V precision shunt regulator is used The input voltage will be detected by two comparators Table 19 SMBus command for voltage supervision function
3. Command Data Name Code Range Type Description AD78C VOLT 0x14 0x00 r 5V supply voltage OxFF MEN Mikro Elektronik GmbH 30 20AD78 00 E4 2011 09 12 Functional Description 3 6 9 Temperature Supervision The microcontroller is able to determine the PSU temperature The temperature can be read via the SMBus command AD75C TEMP and sent to the CPU The temperature supervision is carried out by the temperature sensor LM62 The LM 2 is a precision integrated circuit temperature sensor that can sense a 0 C to 90 C temperature range while operating from a single 3 0 V supply The microcontroller reads the output voltage of the LM62 with A D input When the temperature is over the AD78C TEMP HIGH level the microcontroller switches off the output power and changes to the error off state Table 20 SMBus commands for temperature supervision Command Data put Name Code Range Type Description AD78C TEMP 0x12 0x00 r Current PSU OxFF temperature AD78C TEMP HIGH 0x13 0x00 riw Temperature OxFF alarm limit shut down switching to error off state The level AD78C_TEMP_HIGH can be configured via the SMBus between 50 C and 90 C see Table 21 SMBus command AD78C_TEMP_HIGH on page 31 and Table 22 Temperature representation on page 31 Table 21 SMBus command AD78C_TEMP_HIGH Minimum Maximum Description 0x6B 50 C 0xA0 90 C default Temperature alarm level
4. sa sam eR eR RE REEL RR EE 20 aD BIAS LEDS so ss sidus ay dato yap oot uw aed OG nee eas uba 2 3 0 SMBUS ays vp uA aud pees RW ieee Pad soda Sabicea V Ike cus sau 21 Suo E E n e T eco E E vae opua EE SEEE N 21 30 2 SMBUS Interld6e ica sansun ERREUR Poe 2T ada Wake On Times r opum dete ene E 22 DO Waehdos uuo ety E nga iu ea arie EROR TO ao 22 3 6 5 Status of Binary Inputs and Outputs 24 9 001 Key Mputa A ire i tS SS kak oan DT a abe 25 MOV SSh tdOWIE S53 discre oar odd tavern eap gera Dara 26 3 0 8 Voltage SUPEFVISION u u u u asa eR Re sta 30 360 Temperature SUpervisiOn ser iaa 1 943 db ad ewww 31 3 6 10 PSU ID and Firmware Revision Number 32 au DODC Converter sreci es batinte pe nete E E IP ep anes 32 3TA F s Protections iue RR RR Rede 33 4 Appendix ss s 9 4 RR re a E ER PROS E Re ees 34 4l Literature and Web Resources ssris ssG 4a eR EIER PTUS 34 4 2 Finding out the Product s Article Number Revision and Serial Numbers i dvd Eimer presb i ako ptu S pude 34 MEN Mikro Elektronik GmbH 11 20AD78 00 E4 2011 09 12 Figures Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 MEN Mikro Elektronik GnbH 20AD78 00 E4 2011 09 12 Map of the board front panel and top VieW 14 Connection example 52i ras ende meerebe eeu p PRSE 16 Microcontroller block diagram s s ss ferre Rm m bye 18 Power up by key input 22s
5. Data Name Code Range Type Description AD78C ONACK 0x02 0 w On acknowledge AD78C_ONACK_TOUT 0x03 0x00 riw On acknowledge 0x0B timeout AD78C_ONACK_ERR 0x04 0x00 r Number of missing OxFF on acknowledges AD78C WDOG STATE 0x05 0x00 riw Watchdog state 0x01 AD78C_WDOG_TRIG 0x06 0 w Watchdog trigger signal AD78C WDOG TOUT 0x07 0x01 riw Watchdog timeout OxFF in 100ms steps AD78C WDOG ERR 0x08 0x00 r Number of missing OxFF on watchdog trigger signals Table 8 SMBus command AD78C_WDOG_TOUT Value Watchdog Timeout 100 ms 200 ms 300 ms 255 25 5 s default 3 6 4 1 Error Off State If five watchdog or SMBus on acknowledge exceptions have occurred the microcontroller firmware switches to an error off state This state is also reached if an overtemperature or overvoltage condition has occurred Upon entering this state Vout 18 immediately deactivated In this state it is not possible to switch on the system in any way To leave this state the power of the PSU must be disconnected power on reset of the PSU This state is signaled via blinking of the yellow LED MEN Mikro Elektronik GmbH 23 20AD78 00 E4 2011 09 12 3 6 5 Status of Binary Inputs and Outputs Functional Description The status of the binary inputs and outputs is also signaled via SMBus commands See Table 9 SMBus commands for binary inputs outputs status on page 24 Table 9 SMBus commands for binary inputs ou
6. Supply input voltage Vin Supply input ground BININ1 Key input BINOUT1 RC1 User output1 relay contact 1 BINOUT1 RC2 User output relay contact 2 BINOUT2 RC1 User output relay contact 1 BINOUT2 RC2 User output2 relay contact 2 BINOUT3 RC1 User output3 relay contact 1 BINOUT3 RC2 User output3 relay contact 2 BININ3 Input BININ2 Input GND I O Key input ground GNDout Ground for system Vout5V 5V supply for system Vout3 3V 3 3V supply for system 5V 3 3V Switch 12V for detection only no power System Reset Pushbutton reset SMBCIk SMBus clock SMBDat SMBus data handshake between CPU and PSU Figure 2 Connection example External power source Vext Vext MEN PSU PU2 PU3 PU4 CompactPCl system CompactPCI backplane Front connector Rear connector 4 SHIELD GNDout 4 s N D 8 8 12 BININ1 Vout 3 3V 1 w s 3 3V 16 16 20 BINOUT2 RC1 20 24 BINOUT3 RC1 24 28 BININ3 28 32 GND I O SHIELD 32 _ 6 Vin Vout 5V 6 5V 10 Vin 10 14 BINOUT1 RC1 14 18 BINOUT1 RC2 18 22 BINOUT2 RC2 26 BINOUT3 RC2 26 30 BININ2 30 MEN Mikro Elektronik GmbH 20AD78 00 E4 2011 09 12 Connecting the PSU 2 1 Using the PSU in a Redundant Configuration The PSU can be used in parallel with other PSUs of the same type for
7. coo s E E ERE 19 Binary output relay one of three binary outputs shown 20 Shutdown SEQUENCE i sus Nei c xev q a EROR KR huasca paqu Ge 29 Position of fuse for DC DC converter protection 33 Labels giving the product s article number revision and serial number u uu sas ssvsuas RR ERE UP VETE 34 12 Tables Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Table 7 Table 8 Table 9 Table 10 Table 11 Table 12 Table 13 Table 14 Table 15 Table 16 Table 17 Table 18 Table 19 Table 20 Table 21 Table 22 Table 23 Table 24 MEN Mikro Elektronik GmbH 20AD78 00 E4 2011 09 12 Pin assignment of HIS PSU connector front 15 Pin assignment of H15 PSU connector rear 15 Signal mnemonics of PSU interfaces 16 Status LEDs on the frontpanel 21 SMBus commands for wake on time function 22 SMBus commands AD78C_WOT_L AD78C WOT H 22 SMBus commands for watchdog function 23 SMBus command AD78C WDOG TOUT 23 SMBus commands for binary inputs outputs status 24 SMBus commands for on acknowledge function 25 SMBus on acknowledge timer modi 26 SMBus command for shutdown by software function 26 SMBus commands for shutdown delay 27 SMB
8. increased availability There are a few limitations to such a configuration though t does not increase the maximum load A failed PSU will not be able to sense that it has failed Both PSUs operate at the same address so do not use SMBus commands MEN Mikro Elektronik GmbH 17 20AD78 00 E4 2011 09 12 Functional Description 3 Functional Description The functions described in the following chapter depend on the firmware This user manual describes the functions realized in the current MEN standard firmware 3 1 Microcontroller The microcontroller is used as a control and supervision device of the DC DC converter and of the binary inputs and outputs of the PSU Additionally it is used as a watchdog for the CPU and the microcontroller itself The microcontroller is connected to the SMBus of the CompactPCI system It controls the binary outputs and is able to read the binary inputs It is able to keep the power supply active even if the external on off signal goes inactive The microcontroller controls the CompactPCI reset signal to be able to reset the complete CompactPCI bus If a reset shall be performed the CompactPCI reset signal is asserted for 250 ms Note An operating system like Windows needs a controlled power down sequence The power supply of the CPU can be kept active via the SMBus even when the external on off signal of the PSU is inactive so that a controlled power down of the operating system is possible
9. 20AD78 00 E4 2011 09 12 PU2 PU3 PUA 3U 8HP Power Supply Units for 19 Systems 24 36 iid or 72 110 VDC nom NH a r 3 1 1 ua User Manual man mikro elektronik gmbh n rnberg PU2 PU3 PU4 3U 8HP PSUs for 19 systems 24 36 48 and 72 110 VDC nom PU2 PU3 PU4 3U 8HP PSUs for 19 systems 24 36 48 and 72 110 VDC nom The 3U 8HP power supply unit is a plug in device for 19 systems e g VMEbus CompactPCI and is especially designed for railway computer systems being fully compliant with EN 50155 The PSU comes in three versions with nominal input voltages of 24 PU2 36 to 48 PU3 and 72 to 110 VDC PU4 with a wide input range of 0 7 to 1 25 times the nominal voltage and a max input voltage range of 0 6 to 1 4 times the nominal voltage according to EN 50155 It is controlled by a microprocessor which supervises the output voltage and the temperature as well as three external inputs and three outputs Thanks to the on board intelligence the PSU can also act as an SMBus slave and communicate with the CPU board via the backplane This allows the PSU to power on the system at a programmed date or it allows the CPU to make status polls with regard to error messages time out on off for example The PSU provides a DC DC converter to generate the isolated 5 V from the input voltage A buck regulator generates 3 3 V from the 5 V isolated side The maximum power at ful
10. For further information see Chapter 3 6 7 4 Off Delay on page 28 Figure 3 Microcontroller block diagram Voltage Supervision Temperature Supervision A D Converter Binary Inputs SMBus SMB Slave Binary Outputs In Out Control Control Control Out LED Out MEN Mikro Elektronik GmbH 18 20AD78 00 E4 2011 09 12 Functional Description 3 2 Power Up The PSU can be switched on in the following two ways Key input ignition key via isolated binary input see Chapter 3 6 6 Key Input on page 25 Figure 4 Power up by key input BININ1 Pin12 Key Vout3 3V Pin12 GND I O Pin32 Vout5V Pin30 Wake on time via the SMBus interface see Chapter 3 6 3 Wake On Time on page 22 3 3 Power Down The PSU can be switched off in the following two ways Key input ignition key via isolated binary input see Chapter 3 6 7 2 Shutdown by Key Input on page 26 Shutdown by application software the shutdown can be signaled via an SMBus command from application to host see Chapter 3 6 7 1 Shutdown by Software on page 26 MEN Mikro Elektronik GmbH 19 20AD78 00 E4 2011 09 12 Functional Description 3 4 Binary I O 3 4 1 Binary Inputs The PSU provides three binary inputs The binary inputs are isolated from the isolated system ground The input voltage range is 0 V up to 154 V The nominal switching level is 9 V The current is 5 mA This value is independent of the input voltage The isolated bina
11. SMBus command AD78C_STATUS on page 27 Table 13 SMBus commands for shutdown delay Command Data Name Code Range Type Description AD78C DOWN DELAY 0x0B 0x00 r w Shutdown delay 0x07 AD78C STATUS 0x0D 0x00 r Signal PSU status 0x01 to application Table 14 SMBus command AD78C STATUS Bit Value Description 0 0 Shutdown event not signaled Signal shutdown event 1 7 0 Reserved Table 15 SMBus command AD78C_DOWN_DELAY Value Shutdown Delay 0 min 1 min 2 min 4 min 8 min 16 min 32 min 64 min N O OGI CO N O MEN Mikro Elektronik GmbH 27 20AD78 00 E4 2011 09 12 Functional Description 3 6 74 Off Delay During the shutdown sequence the microcontroller firmware provides a programmable off delay As default this feature is not enabled mode 0 In this case there will be no off delay the supply will be switched off immediately When enabled mode 1 5 the firmware starts the off delay timer after signaling the shutdown event to the CPU After timeout the microcontroller firmware switches off the supply voltage Vout Vout is kept disabled for at least 1 s even if an immediate on event occurs This guarantees a proper power on reset of the supplied system The off delay can be programmed using the SMBus command AD78C OFF DELAY for details see Table 16 SMBus command for off delay function on page 28 an
12. ct range Blinking error state off 3 6 SMBus 3 6 1 General The System Management Bus SMBus is a two wire interface through which various system component chips can communicate with each other and with the rest of the system It is based on the principles of operation of PC SMBus provides a control bus for system and power management related tasks A system may use SMBus to pass messages to and from devices instead of tripping individual control lines Removing the individual control lines reduces pin count Accepting messages ensures future expandability With System Management Bus a device can provide manufacturer information tell the system what its model part number is save its state for a suspend event report different types of errors accept control parameters and return its status 3 6 2 SMBus Interface The microcontroller firmware supports SMBus slave device functionality The SMBus address of the PSU is 0x12 The microcontroller behaves according to the SMBus Specification Version 2 0 see Chapter 4 1 Literature and Web Resources on page 34 but it only supports the write byte and the read byte protocol without PEC The supported SMBus commands and their functions are explained in the following chapters The commands are listed by their unique name Column Data Range lists the valid range of the data byte for the specific command code Column Type specifies the data direction for the specific command r sp
13. d Table 17 SMBus command AD78C OFF DELAY on page 28 Table 16 SMBus command for off delay function Command Data Name Code Range Type Description AD78C OFF DELAY 0x0C 0x00 riw Off delay 0x05 Table 17 SMBus command AD78C_OFF_DELAY Mode value Off Delay Feature off no OFF delay default 1 min 2 min 4 min 8 min OI CO N O 16 min 3 6 75 Off Acknowledge The microcontroller firmware enables acknowledging the shutdown It is possible at any time during off delay to shut down the power supply by the SMBus command AD78C_OFFACK Table 18 SMBus command for off acknowledge function Command Data Name Code Range Type Description AD78C OFFACK 0x0A 0 w Signal off acknowledge MEN Mikro Elektronik GmbH 28 20AD78 00 E4 2011 09 12 Functional Description 3 6 76 Shutdown Sequence Any shutdown by software or key input is carried out according to the following sequence Figure 6 Shutdown sequence System ON P lt Wait on off event L f Se anat hdog NO Pd i EL Shutdown gt expiration 5 eri Key off P n i PS S od yes ye yes SD Delay vv Wait on SD Delay timeout or ON event no on event ke no SD Delay Er m WOT meou as yes yes OFF Delay Signalize Shutdown Wait on OFF delay timeout OR SMB OFF Ack
14. e information and documentation www men de products 17PU04 html System Management Bus SMBus Specification Version 2 0 August 3 2000 SBS Implementers Forum www smbus org 4 2 Finding out the Product s Article Number Revision and Serial Number MEN user documentation may describe several different models and or design revisions of the PSU You can find information on the article number the design revision and the serial number on a label attached to the board Article number Gives the product s family and model This is also MEN s ordering number To be complete it must have 9 characters Revision number Gives the design revision of the product Serial number Unique identification assigned during production If you need support you should communicate these numbers to MEN Figure 8 Labels giving the product s article number revision and serial number Complete article number Wa n wae 641517 Revision number Serial number MEN Mikro Elektronik GmbH 34 20AD78 00 E4 2011 09 12
15. ecifies that the host can read the data using the SMBus read byte protocol w means the host can write data using the SMBus write byte protocol MEN Mikro Elektronik GmbH 21 20AD78 00 E4 2011 09 12 Functional Description 3 6 3 Wake On Time The PSU can be switched on off by a programmable timer The timer is included in the microcontroller and is programmable by the CPU via SMBus commands see Table 5 SMBus commands for wake on time function on page 22 The behavior after power up by wake on time is identical to the behavior after power up by key input After the first wake on time event the wake on time feature is disabled Note For the timer functionality it is necessary that the DC DC converter and the microcontroller are active Table 5 SMBus commands for wake on time function Command Data Name Code Range Type Description AD78C WOT L 0x00 0x00 r w Wake on time low byte OxFF AD78C WOT H 0x01 0x00 r w Wake on time high byte OxFF The wake on time delay can be configured via SMBus in a 16 bit counter to provide the range according to the following table Table 6 SMBus commands AD78C_WOT_L AD78C WOT H Minimum Maximum Description 0 OFF 65 535 min AD78C WOT Land AD78C WOT H build a 16 bit default value which represents the time in minutes 3 6 4 Watchdog The microcontroller is also used as a watchdog for the CompactPCI system It is possible to
16. emarks should be made directly to those companies Copyright 2011 MEN Mikro Elektronik GmbH All rights reserved eS Please recycle Germany France USA MEN Mikro Elektronik GmbH MEN Mikro Elektronik SA MEN Micro Inc Neuwieder Stra e 5 7 18 rue Ren Cassin 24 North Main Street 90411 Nuremberg ZA de la Ch telaine Ambler PA 19002 Phone 49 911 99 33 5 0 74240 Gaillard Phone 215 542 9575 Fax 49 911 99 33 5 901 E mail info men de www men de MEN Mikro Elektronik GmbH 20AD78 00 E4 2011 09 12 Phone 33 0 450 955 312 Fax 33 0 450 955 211 E mail info men france fr www men france fr Fax 215 542 9577 E mail sales Cmenmicro com www menmicro com Contents Contents 1 Getting Started 4o tau sss TSS VS SIRIS RSS RR RU owas 14 l Map of the Board js oda baut ud t Oque kud skua neas bakos 14 1 2 Integrating the Board into a System l 14 1 3 Installing Driver Sottware 1 5 2 2v eg 1043 Seki Sk wkd endows 14 2 Connecting the PSU 555v 420d ho E COP R n E NEUE T TEE E PES 15 2 1 Using the PSU in a Redundant Configuration 17 3 Functional Description esr us RR RR ees 18 3 1 Microcontroller ces 22 222 Rh o e pr Re sensas as 18 2 2 Power Upya opperiri p hide ene NS 19 uo Power DOWD a cova xs ahs SA ADAN DEMA RRS ond SAN DAM NEUE SR 19 24 Binary VO 552m 9 eda eed ne NEQU PR AA 20 S91 Binary PUS 2 oo ose ence edo ote eb g uae daa 20 3 4 2 Binary Outputs
17. enable disable the watchdog by the SMBus command AD78C WDOG STATE After the AD78C STATUS byte see Table 13 SMBus commands for shutdown delay on page 27 signaled a shutdown the watchdog is disabled by the firmware The watchdog is triggered by cyclic SMBus commands AD78C WDOG TRIG from the CPU The time interval between trigger commands is configurable via SMBus command AD78C WDOG TOUT see Table 8 SMBus command AD78C WDOG TOUT on page 23 The time interval is set to its maximum value after PSU power up and the watchdog is disabled In case of missing trigger the microcontroller firmware resets the complete system The number of missing SMBus trigger command exceptions is incremented and can be read via the SMBus command AD75C WDOG ERR After five exceptions the microcontroller firmware switches off the power output Vout and switches to error off state see Chapter 3 6 4 1 Error Off State on page 23 After a watchdog reset the firmware waits for the SMBus on acknowledge signal before it restarts the watchdog timer Care must be taken if the SMBus on acknowledge feature is not used and the system is not able to start within the watchdog timeout time In this case a deadlock situation occurs and after several watchdog exceptions the system will fall into the error off state MEN Mikro Elektronik GmbH 22 20AD78 00 E4 2011 09 12 Functional Description Table 7 SMBus commands for watchdog function Command
18. erature range operation 40 85 C e Temperature range storage 40 85 C Airflow min 10 m3 h e Shock according to EN 60068 2 27 Continuous shock according to EN 60068 2 29 Vibration according to EN 60068 2 6 Protection Class of protection Class II EN 60950 Degree of protection IP20 insert in rack EN 60529 MEN Mikro Elektronik GmbH 4 20AD78 00 E4 2011 09 12 Technical Data EMC Tested according to EN 55022 radio disturbance EN 61000 4 2 ESD EN 61000 4 4 burst and EN 61000 4 5 surge Software Support Driver software for Windows Linux VxWorks on request For more information on supported operating system versions and drivers see online data sheet MEN Mikro Elektronik GmbH 2 20AD78 00 E4 2011 09 12 Block Diagram Block Diagram Front Regulator Rear Connector 3 3 VDC Connector Isolation Microcontroller BINOUT MEN Mikro Elektronik GmbH 6 20AD78 00 E4 2011 09 12 Product Safety Product Safety A Electrostatic Discharge ESD Computer boards and components contain electrostatic sensitive devices Electrostatic discharge ESD can damage components To protect the board and other components against damage from static electricity you should follow some precautions whenever you work on your computer Power down and unplug your computer system when working on the inside Hold components by the edges and try not to touch the IC chips leads o
19. g use in a redundant system with multiple PUx models connected in par allel Other minor changes cosmetics Conventions This sign marks important notes or warnings concerning proper functionality of the product described in this document You should read them in any case italics Folder file and function names are printed in italics bold Bold type is used for emphasis monospace A monospaced font type is used for hexadecimal numbers listings C function descriptions or wherever appropriate Hexadecimal numbers are preceded by Ox comment Comments embedded into coding examples are shown in green color hyperlink Hyperlinks are printed in blue color MEN Mikro Elektronik GmbH 8 20AD78 00 E4 2011 09 12 About this Document The globe will show you where hyperlinks lead directly to the Internet so you can look for the latest information online IRQ Signal names followed by or preceded by a slash indicate that this signal is IRQ either active low or that it becomes active at a falling edge in out Signal directions in signal mnemonics tables generally refer to the corresponding board or component in meaning to the board or component out meaning coming from it Vertical lines on the outer margin signal technical changes to the previous issue of the document MEN Mikro Elektronik GmbH 9 20AD78 00 E4 2011 09 12 About this Document Legal Information MEN Mikro Elektron
20. he microcontroller firmware waits for SMBus acknowledge After five exceptions the microcontroller firmware disables the power output Vout see Chapter 3 6 4 1 Error Off State on page 23 After a power up of the PSU the on acknowledge configuration is reset Table 10 SMBus commands for on acknowledge function Command Data um Name Code Range Type Description AD78C ONACK 0x02 0 w On acknowledge AD78C_ONACK_TOUT 0x03 0x00 r w On acknowledge 0x0B timeout AD78C_ONACK_ERR 0x04 0x00 r Number of missing OxFF on acknowledges MEN Mikro Elektronik GmbH f f f 25 20AD78 00 E4 2011 09 12 Functional Description Table 11 SMBus on acknowledge timer modi Mode SMBus On Acknowledge Feature disabled no acknowledge required default 1s 2s 4s 8s 16s 32s 64s 128s 256s 512s 1024 s jojo Oo BR WwW DV O o 3 6 7 Shutdown 3 6 71 Shutdown by Software At any time it is possible to shut down the power supply by software via SMBus command AD7SC_SWOFF A shutdown by software follows the shutdown sequence Table 12 SMBus command for shutdown by software function Command Data m Name Code Range Type Description AD78C SWOFF 0x09 0 w Signal a software power off from application 3 6 72 Shutdown by Key Input One of the binary inputs can be used as an on off input Whe
21. her wholly or partially on the whole or any part of the contents of the publication The correct function of MEN products in mission critical and life critical applications is limited to the environmental specification given for each product in the technical user manual The correct function of MEN products under extended environmental conditions is limited to the individual requirement specification and subsequent validation documents for each product for the applicable use case and has to be agreed upon in writing by MEN and the customer Should the customer purchase or use MEN products for any unintended or unauthorized application the customer shall indemnify and hold MEN and its officers employees subsidiaries affiliates and distributors harmless against all claims costs damages and expenses and reasonable attorney fees arising out of directly or indirectly any claim or personal injury or death associated with such unintended or unauthorized use even if such claim alleges that MEN was negligent regarding the design or manufacture of the part In no case is MEN liable for the correct function of the technical installation where MEN products are a part of All products or services mentioned in this publication are identified by the trademarks service marks or product names as designated by the companies who market those products The trademarks and registered trademarks are held by the companies producing them Inquiries concerning such trad
22. ik GmbH MEN reserves the right to make changes without further notice to any products herein MEN makes no warranty representation or guarantee of any kind regarding the suitability of its products for any particular purpose nor does MEN assume any liability arising out of the application or use of any product or circuit and specifically disclaims any and all liability including without limitation consequential or incidental damages TO THE EXTENT APPLICABLE SPECIFICALLY EXCLUDED ARE ANY IMPLIED WARRANTIES ARISING BY OPERATION OF LAW CUSTOM OR USAGE INCLUDING WITHOUT LIMITATION THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE OR USE In no event shall MEN be liable for more than the contract price for the products in question If buyer does not notify MEN in writing within the foregoing warranty period MEN shall have no liability or obligation to buyer hereunder The publication is provided on the terms and understanding that 1 MEN is not responsible for the results of any actions taken on the basis of information in the publication nor for any error in or omission from the publication and 2 MEN is not engaged in rendering technical or other advice or services MEN expressly disclaims all and any liability and responsibility to any person whether a reader of the publication or not in respect of anything and of the consequences of anything done or omitted to be done by any such person in reliance whet
23. l load is 35 W The subassembly is conformally coated and components are secured against vibration The PSU operates in 40 to 85 C environmental temperature The thermal stress is extremely low due to integrated heat sinks and diversion of dissipated heat over the mounting surface MEN Mikro Elektronik GmbH 2 20AD78 00 E4 2011 09 12 Technical Data Technical Data Microcontroller Output voltage and temperature supervision readable via SMBus Overtemperature and overvoltage output shutdown Communication with CPU Watchdog functionality SMBus Signals on back connector Voltage level 3 3 V Controlled by CPU Communication between the power supply unit and the CPU Binary I O 3 binary inputs Voltage level according to external power supply input voltage max 154 VDC Electrically isolated External switch key with binary input Switch on by key input or wake on time Switch off by key input or software Status of binary inputs readable via SMBus User specific functionality depending on firmware 3 binary outputs Max voltage 154 V Isolated by relays User specific functionality controllable via SMBus Maximum switching power 60 W Miscellaneous DC DC Converter Fuse protected Two status LEDs on front panel Green LED indicates correct input voltage Yellow LED indicates correct output voltage Alternative power supply at the backplane for use as redunda
24. lerance the minimum power must be 5 W Table 24 Maximum no load input power of DC DC converter Nominal Input Voltage 24VDC 36 48VDC 72 110VDC No load input power DC DC 300 mW 500 mW 800 mW Other parts 100 mW 100 mW 100 mW Result power input 400 mW 600 mW 900 mW MEN Mikro ElektronikGmbH 2 32 20AD78 00 E4 2011 09 12 Functional Description 3 7 1 Fuse Protection The DC DC converter is protected by a fuse This fuse is not intended to be exchanged by the customer Your warranty for the PSU will cease if you exchange the fuses on your own Please send your board to MEN for repair if a fuse blows Current rating 5A for PU2 2 5A for PU3 1A for PU4 Type slow e Size 4 5 x 12 1 MEN part number 5675 0006 1A 5675 0010 2 5A 5675 0009 5A The fuse is located on the top side of the PSU Figure 7 Position of fuse for DC DC converter protection Mounting screws Status LEDs DC DC Converter H15 Connector Front H15 Connector Rear 2 c 2 ru ra sS 8 o o c o o u a Mounting screws MEN Mikro Elektronik GmbH 33 20AD78 00 E4 2011 09 12 Appendix 4 Appendix 41 Literature and Web Resources PU2 data sheet with up to date information and documentation www men de products 17PU02 html PU3 data sheet with up to date information and documentation www men de products 17PU03 html PUA data sheet with up to dat
25. move any covers or other mechanical parts M The guiderails should be made of synthetic material and not touch any compo nents 1 3 Installing Driver Software For a detailed description on how to install driver software please refer to the respective documentation You can find any driver software available for download on MEN s website MEN Mikro Elektronik GmbH 14 20AD78 00 E4 2011 09 12 Connecting the PSU 2 Connecting the PSU The PSU can be connected via two H15 connectors at the front and at the rear side Connector types 15 pin H15 receptacle according to IEC 60603 2 Mating connector 15 pin H15 plug according to IEC 60603 2 Table 1 Pin assignment of H15 PSU connector front 32 GND I O 30 BININ2 28 BININ3 26 BINOUT3 RC2 32 1 also 24 BINOUT3 RC1 22 BINOUT2 RC2 20 BINOUT2 RC1 18 BINOUT1 RC2 16 14 BINOUT1 RC1 AE 12 BININ1 10 Vin 8 6 Vint 4 SHIELD Table 2 Pin assignment of H15 PSU connector rear 6 Vout5V 4 GNDout 10 Vout5V 8 Vout3 3V sani 14 5V 3 3V Switch 12 Vout3 3V4 18 SMBCIk 16 System Reset 22 GND out 20 SMBDat 30 26 24 32 30 28 32 SHIELD Note Pin 32 is longer than the other pins MEN Mikro Elektronik GmbH 15 20AD78 00 E4 2011 09 12 Connecting the PSU Table 3 Signal mnemonics of PSU interfaces Signal Function SHIELD Connection to cable shield Vinc
26. n this signal is passive open during power up of the input voltage the system is not supplied with power When this signals goes active the microcontroller switches the power supply to provide the system with power Nevertheless the DC DC converter and the microcontroller are supplied when the input voltage is connected It is possible at any time to shut down the power supply by switching off the key input A shutdown by key input follows the shutdown sequence MEN Mikro Elektronik GmbH 26 20AD78 00 E4 2011 09 12 Functional Description 3 6 73 Shutdown Delay During the shutdown sequence the microcontroller firmware provides a programmable shutdown delay The default state of the shutdown delay after power up of the PSU is 0 disabled The shutdown delay is configurable via the SMBus command AD75C DOWN DELAY see Table 13 SMBus commands for shutdown delay on page 27 and Table 15 SMBus command AD78C_DOWN_DELAY on page 27 The shutdown delay timer is started after shutdown event At any time during the shutdown delay the shutdown sequence can be stopped by an on event key input on The system is in running state then and the shutdown delay timer is cleared After timeout of the shutdown delay the microcontroller firmware signals the shutdown event to the CPU by setting a bit in the status register which can be read using the SMBus command AD7 amp C_STATUS see Table 13 SMBus commands for shutdown delay on page 27 and Table 14
27. nt PSU Short circuit protection Reverse polarity protection by internal protector Fixed switching frequency 250 KHz Input Characteristics Nominal voltage input 24 VDC PU2 36 48 VDC PU3 72 110 VDC PU4 MEN Mikro Elektronik GmbH 3 20AD78 00 E4 2011 09 12 Technical Data Wide input range 0 7 x nominal voltage nominal voltage 1 25 x nominal voltage according to EN 50155 16 8 30 VDC PU2 25 2 60 VDC PU3 50 4 137 5 VDC PU4 Max input voltage range 0 6 x nominal voltage nominal voltage lt 1 4 x nom inal voltage with full functionality for 0 1 s no damage for 1 s according to EN 50155 14 4 33 6 VDC PU2 21 6 67 2 VDC PU3 43 2 154 VDC PU4 Noload input power 900 mW Output Characteristics Output power max 35 W SV tolerance 5 3 e 33V tolerance 3 Overvoltage protection 0 5 V 0 2 V Overtemperature shutdown 50 90 C adjustable by SMBus command Connection nput and output via DIN 41612 plug connector type H15 Electrical Specifications solation according to EN 50155 Input output 1 500 VDC 1 000 Vgys Input shield 1 500 VDC 1 000 Vgyis Output shield 1 500 VDC 1 000 Vgyis Ground shield 1 500 VDC 1 000 Vpms MTBF 240 600 h 40 C derived from MIL HDBK 217F Mechanical Specifications Dimensions 3U 8HP 128 4 mm height ntegrated heat sink Weight 665 g Environmental Specifications Temp
28. r cir cuitry Use a grounded wrist strap before handling computer components Place components on a grounded antistatic pad or on the bag that came with the component whenever the components are separated from the system Store the board only in its original ESD protected packaging Retain the original packaging in case you need to return the board to MEN for repair MEN Mikro Elektronik GmbH 7 20AD78 00 E4 2011 09 12 About this Document About this Document This user manual describes the hardware functions of the board connection of peripheral devices and integration into a system It also provides additional information for special applications and configurations of the board The manual does not include detailed information on individual components data sheets etc A list of literature is given in the appendix History Issue Comments Date E1 First issue 2006 11 15 E2 Update error correction 2007 05 14 E3 Corrected and added more detailed information 2010 06 23 regarding input voltage range Cosmetics E4 Modified technical data to reflect extended voltage 2011 09 12 range of PUS also suitable for 48 VDC nom and PUA also suitable for 72 VDC nom Previous minimum power limit no longer applies Clarified pin assignment regarding binary outputs marked one set of power outputs as alternate Added connection example figure Added figure to binary output sub chapter Added information regardin
29. ry inputs are led to the microcontroller and can be used for user specific functionality dependent on the firmware The state of the binary inputs can be read via the SMBus interface See Chapter 3 6 5 Status of Binary Inputs and Outputs on page 24 3 4 2 Binary Outputs The power supply unit provides three binary outputs They are controlled by the microcontroller and the state of the outputs is controllable via SMBus Figure 5 Binary output relay one of three binary outputs shown BINOUT RC2 1 I I I l l l l l l l l l l l l l The binary outputs are isolated by relays between each other and isolated system ground The default setting of BINOUTx RC1 and BINOUTx RC2 is open The maximum switching power of each binary output is 60 W The state of the binary outputs can be read via the SMBus interface See Chapter 3 6 5 Status of Binary Inputs and Outputs on page 24 MEN Mikro Elektronik GmbH 20 20AD78 00 E4 2011 09 12 Functional Description 3 5 Status LEDs The PSU provides two status LEDs at the front panel The green LED is on when the input voltage is in the correct range the yellow LED is on when the output voltage is in the correct range The yellow LED blinks when the PSU is switched to error state off See Chapter 3 6 4 1 Error Off State on page 23 Table 4 Status LEDs on the front panel LED Function Green LED On input voltage in correct range Yellow LED On output voltage in corre
30. tputs status Command Data q Name Code Range Type Description AD78C IN OxOE 0x00 r State of binary inputs OxFF AD78C IN MASK OxOF 0x00 r Signal if binary input is OxOF usable from application AD78C OUT 0x10 0x00 riw State of binary outputs OxOF AD78C OUT MASK 0x11 0x00 r Signal if binary output OxOF is usable from application MEN Mikro Elektronik GmbH 20AD78 00 E4 2011 09 12 Functional Description 3 6 6 Key Input 3 6 6 4 Key Input On The firmware switches on the output power Vout whenever the debounced state of the binary input used as key switches from low to high state on event The firmware debounces the key input in the following way if the input is stable for 250ms the input state is interpreted 3 6 6 2 SMBus On Acknowledge The firmware provides an SMBus on acknowledge feature This feature is enabled by using mode 1 to 11 according to Table 11 SMBus on acknowledge timer modi on page 26 Default mode is 0 feature disabled no SMBus acknowledge required If enabled and the microcontroller does not receive a SMBus on acknowledge dur ing the configurable SMBus on acknowledge delay the microcontroller firmware resets the complete system by activating the CompactPCI reset output The number of missing SMBus acknowledge exceptions are incremented and can be read via SMBus command AD78C_ONACK_ERR After reset is released the acknowledge timer is restarted and t
31. us command AD78C STATUS 27 SMBus command AD78C DOWN DELAY 27 SMBus command for off delay function 28 SMBus command AD78C OFF DELAY 28 SMBus command for off acknowledge function 28 SMBus command for voltage supervision function 30 SMBus commands for temperature supervision 31 SMBus command AD7Z8C TEMP HIGH 31 Temperature representation sss sisas re ar PROP UR 31 SMBus commands for PSU ID and firmware revision number 32 Maximum no load input power of DC DC converter 32 13 Getting Started 1 Getting Started This chapter gives an overview of the board and some hints for first installation in a system 1 1 Map of the Board Figure 1 Map of the board front panel and top view Mounting screws Status LEDs DC DC Converter H15 Connector Rear c o c k re o i o o c c o o uu a x c o c n i o i o o c c o o uu a mo Mounting screws 12 Integrating the Board into a System A This chapter gives important information on first installation of the PSU M Power down the system before installing or removing the PSU M Only operate the PSU in a suitable housing i e in such a way that no parts of the PSU except the front panel can be touched M Make sure that enough airflow is provided XI Do not re
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