NPS2400
Contents
1. NPS2400 Power Supply User s Manual 2400W High Efficiency XA GND XA AZL ISNIS 3SN3S 3MYHS Lu 3MVHS e ADO g vwOZ z Xnv ONO ON IN C a WOD lt o eo a ND AR ANTA Vi TW GOMMA TOUR NMOGLAHS NMOOLNHS NATAT UT WAT WAT MT QUPD l M rir hi Y MA NI V MT s ur um ATA AY HH COA UTI UAR MW N on t Vi E A Un MN A Wa mun AUAM pt UT EA UND Um SS Y AUT V Wier W VALIS SWITZERLAND www nextys com DISCLAIMER NEXTYS reserves the right to make changes without further notice to any products herein NEXTYS makes no warranty representation or guarantee regarding the suitability of its products for any particular purpose nor does NEXTYS assume any liability arising out of the application or use of any product and specifically disclaims any and all liability including without limitation consequential or incidental damages Typical parameters which may be provided in NEXTYS data sheets and or specifications can and do vary in different applications and actual performance may vary overtime All operating parameters including Typicals must be validated for each customer application by customer s technical experts NEXTYS does not convey any license under its patent rights nor the rights of others NEXTYS products are not designed intended or authorized fo2. Figure 15 Remote shutdown input connection by using the AUX power supply The device includes an opto isolated input used to remotely shutdown or enabling the device output without the need for disconnecting the mains input This input can be used in 2 ways a External signal when applying an external DC voltage as shown on Figure 14 from 5VDC to 24VDC to the SHUTDOWN inputs the NPS2400 output will be turned ON or OFF depending on the programmed shutdown polarity see 86 4 9 b External switch or relay contact by connecting an external switch or relay contact as indicated in Figure 15 the NPS2400 output can be switched ON or OFF by only acting on the switch or relay contact 4 3 8 Auxiliary 12V 100mA output The NPS2400 provides an auxiliary power supply rated 12V 100mA max This supply is available on the 12V AUX GND AUX terminals of the auxiliary connector The auxiliary supply is floating isolated with respect to the SMPS output Take care when using the 12V auxiliary output in conjunction with remote output current measurement to avoid ground loops The 12V auxiliary output is short circuit protected by an active circuit 4 3 9 Auxiliary relay dry contacts NPS2400 provides an SPDT relay with normally open NO and normally closed NC dry contacts They normally indicate that the output voltage is present and regulated DCOK Other functions are available for the relay see chapter 6 4 18 6 4 19 6 4 20 and 6 4 21 for details
3. 3 0 17 02 2015 Page 17 38 VALIS SWITZERLAND www nextys com 5 2 Constant current limit mode When operating in constant current limit mode NPS2400 behaves as a constant voltage source or constant current source depending on the load CC mode is suitable for powering loads that do not need high peak currents The output maximum current can be set between 0 1 Inom and Inom see 6 4 5 It will never exceed the programmed value independently on the load behavior In case of a dead short circuit on the output Uout lt 0 1 Unom Imax is still limited at Inom but the output shuts OFF after about 100 ms entering a hiccup cycle This mode can be suitable also for powering systems that have a back up battery in parallel to the load The output U I behavior in CC mode is presented in Figure 18 Uout Unom 0 1 Unom M es MEE M M NE Hiccup cycle Inom lout Figure 18 Output voltage vs current characteristics in constant current limit mode NPS2400 User s Manual Rev 3 0 17 02 2015 Page 18 38 VALIS SWITZERLAND www nextys com 5 3 Battery charger mode available only on 24 and 48 models 5 3 1 Lead acid Stage 1 Stage 2 Stage 3 constant current charge constant voltage charge floating charge Cell voltage 0 Charge current Cell voltage V Time hrs Figure 19 Lead acid battery charging profile This operating mode performs lead acid battery charging 12V 24
4. 750VDC Use with only 2 phases connection is prohibited Under emergency conditions only the units can operate with 2 phases input with reduced maximum power to 1 2 of the nominal Connect the Earth PE wire before connecting L1 L2 L3 wires and keep it as short as possible The wire gauge should be at least 1 5 mm 15 AWG 4 1 2 Input protection devices NPS2400 is NOT equipped with an internal protection fuse Use external breaking and protection devices as circuit breakers rated 10A and characteristic C properly rated for the operating voltage and with a minimum breaking power of 1 5kA Over Current protection must be provided on each phase For USA and Canada use fuses class CC rated 10A In some countries local regulation may apply Special ratings and devices should be used for DC input applications Call factory for information Surge protection it is strongly recommended to provide external surge arresters according to local regulations 4 1 3 Input connector wiring The input mains terminal block accepts wires up to 4mm 11AWG Strip the wire insulation for 8mm screw tightening torque 0 5 0 6Nm use only 60 75 Class 1 copper wires A Warning before operating on the device disconnect the AC mains and wait at least 1 minute 4 1 4 Output connector wiring The output terminal block accepts wires up to 35mm 2AWG Strip the wire insulation for 15mm screw tightening torque 2 5 4 5Nm use only 60 75 Class 1 copper wires Refer
5. BC CHECK Battery is checked by the charger NPS2400 User s Manual Rev 3 0 17 02 2015 Page 23 38 VALIS SWITZERLAND www nextys com 6 4 Set up menu From this submenu it is possible to configure the SMPS The layout of the submenu is shown in Figure 23 Down Key SETUP EDIT E Menu Key POWER LIMIT t PRODUCT NAME VIN MIN ALARM VIN MAX ALARM IOUT MAX IOUT ALARM viv ly iv iv ivy v ly SHUTDOWN POLARITY TEMPERATURE UNIT M H M M M M i i BUZZER ENABLE an UP Key RELAY ON AC OK RELAY ON TEMP OK RELAY ON IOUT OK RELAY ON DC OK BATTERY CHARGE MODE BATTERY CAPACITY BATTERY CHARGING VOLTAGE paanan E BATTERY NOMINAL VOLTAGE LTLTLTLTLTLTLTLTLT BATTERY TYPE OPERATIONAL MODE Figure 23 Edit settings layout By pressing the OK button user can start editing the selected parameter Editing is done by scrolling the possible values with the UP DOWN keys If the KEYS are kept pressed they auto repeats at an accelerating frequency To exit the edit mode press on the OK or MENU KEY NPS2400 User s Manual Rev 3 0 17 02 2015 Page 24 38 VALIS SWITZERLAND www nextys com 6 4 1 Power Limit Setting Power limit Value vA AA In case of operation in high temperature environment is possible to reduce the maximum power of the device Possible choices are 1500W 2000W 2400W Default 2400W 6 4 2 Vin min alarm Setting Win min alarm Valu
6. Pluggable 1 x 16 pins 3 81mm 0 15 in max 1 5mm AWG 15 233 x 158 x102mm 9 17 x 6 22 x 4 00 in 2 8kg 6 17 lbs Vertical allow 80mm 3 15in spacing between TOP BOTTOM adjacent items Horizontal allow 10mm 0 40in spacing between LEFT RIGHT adjacent items Note all values on Table 6 are TYPICAL measured values 3 x 400VAC and 25 C if not otherwise specified Table 6 Specifications Minimum mounting clearances are shown on Figure 24 ALARM Bitik 24VDC 004 4 535A OUTPUT INPUT 9 Bis sls LIL2L3 D Sl sit FE Sle E Figure 24 Minimum mounting clearance NPS2400 User s Manual Rev 3 0 17 02 2015 Page 37 38 PIMAING SWITZERLAND www nextys com SMPS dimensions are shown on Figure 25 4 18in 9 17in 106mm 233mm COMMUNICATION O ALARM INTERFACE ODC OK CHARGE f c o0 o O 24VDC 100A 3X ue 50 60Hz INPUT c eor oo Figure 25 Dimensions NPS2400 User s Manual Rev 3 0 17 02 2015 Page 38 38
7. When the device is operating in battery charger mode only on 24 and 48 models the relay is excited when the battery charging process is terminated overriding all the other functions NPS2400 User s Manual Rev 3 0 17 02 2015 Page 15 38 VALIS SWITZERLAND www nextys com 4 3 10 Connection to a PC through the USB communication box NPS2400_CB Oli 24VDC 100A OUTPUT amp 2 vy OOO O ALARM A OSWS e DC OK CHARGE C903401CB O Power OK b x 400 500VAC 4 5 3 5A S 50 60Hz INPUT F r 1 HE I gt le 1a wz Ze 3 38 To PC USB Figure 16 Connection of the USB communication box optional The NPS2400 is provided with a connector called communication interface where the USB communication box NPS2400_CB optional must be connected This allows interacting with the device using a PC provided with USB interface and a specific PC application POWER MASTER optionally provided NPS2400 User s Manual Rev 3 0 17 02 2015 Page 16 38 VALIS SWITZERLAND www nextys com 4 4 Maintenance The FAN should be checked periodically recommended every 6 moths Dirty fans can be cleaned using compressed air generated by a vacuum cleaner from outside of the unit Do not use high pressure air flux it can damage the unit Optionally a maintenance remin
8. 4 Mstalingthe NPS240Q sti 7 4 1 General considerations naaaaaaannnaaaaaaaaanaaaaannuuuuaaaaanuuunaaaaanununaaanannuuuuaaaaanuuuuaaaaanununaaanannuuuuaaaaanuuunaaaaanununaaaaanuaanaaaaa 7 4 2 Mounting and dismounting the device aa2aaiiaaaaaanaaannanananaanananannaaananaaaananaaaaannananannanananaaaananananannananannanananaaaananaaaa 8 AS Gro ete TNS COV Ce MENTRE RU 9 12 MENAN E eorne m 17 DS AIAG OS ECCO 17 5 1 VETO COSI mode 06 al reticence oom S mcm 17 5 2 Constant Current Imit OROLO EE m 18 5 3 Battery charger mode available only on 24 and 48 models naaaanaaaanannnnannnnnnnunannnnnannnnnannnnnannnnnannnnnannnnnannnnnaananaa 19 SE E ace RRT eee E E AA ner A A E ee ane eee ere E A nee ee ee en are ret ere 21 61 Principles Ol 008 l Roe 21 SP Gre ri AC US a a N r a a a L a 22 6 3 Initial and standard screens aaaanaaaaaaaaaanannaaananaaaanananaananananaanananannananannnnanananannnnannannnnannanannnnananannananannnannaaanannaaanana 22 SA lI IE EP 24 09 Mon EMEN lc c 29 OO 5520 orree E E E A E E E en eee nee 30 67 Naa E a a ee a eee 35 AEN PEG IANS AS SGI AON sates cite etcetera kakan adaa 36 Rn l i nO eee oe eon er ae een eer ee ene ee ee
9. On event Code Type Fower OH CEU Time stamp ddmmsy hh mm ss Event The unit has been energized 6 6 25 Battery Charger Constant Current event Code Type BC CC CEU Time stamp ddmmss hh mm ss Event In BC mode the unit started the constant current phase see 5 3 6 6 26 Battery Charger Constant Voltage event Code Type BC CW CEU Time stamp ddmmsy hhimmiss Event In BC mode the unit started the constant voltage phase see 5 3 6 6 27 Battery Charger Float event Code Type BC Float CEU Time stamp n e TTE hh mm ss Event In BC mode the unit started the constant voltage phase see 5 3 6 6 28 Battery Charger Error event Code Type BC ERROR CEU Time stamp ddmmsy hh mmi Event In BC mode the unit started the constant voltage phase see 5 3 6 6 29 Battery Charger Over Temperature event Code Type BC OT CEU Time stamp ddmmss hh mmiss Event In BC mode the unit started the constant voltage phase see 5 3 NPS2400 User s Manual Rev 3 0 17 02 2015 Page 34 38 VALIS SWITZERLAND www nextys com 6 7 Information Factory set generic information ID etc is available under this menu The UP DOWN keys are used to scroll between the pages 6 7 1 Model Item Hodel Model code HPSZ4PAC 6 7 2 Serial Number Item Serial Humber Serial number 1234567398 6 7 3 Firmware Item Firmware Firmware version UBA AG 6 7 4 Date Item Date ccd
10. This allows maintaining a safe temperature of the critical parts while maximizing the fans operating life and minimizing the fans noise Remote output current measure the user can measure remotely the output current delivered by the SMPS The information is provided through an opto isolated output with 2 industry standard ranges 0 10V or 4 20mA for OA to rated output current Remote shutdown input it allows to remotely switch the SMPS ON or OFF without cutting the 3 phase mains An opto isolated input can be configured as a remote shutdown enable input Auxiliary 12V output the units provide a regulated 12V 0 1A output completely insulated from the main output It can be used to supply light 12V loads independently on the SMPS output voltage status Battery charger mode only on 24 and 48 models this operating mode allows operating the device as a high performance battery charger for lead acid and NiCd NiMH batteries 12V 24V or 48V batteries can be charged up to a capacity of 1000Ah NPS2400 User s Manual Rev 3 0 17 02 2015 Page 6 38 VALIS SWITZERLAND www nextys com 4 Installing the NPS2400 4 1 General considerations A Warning NPS2400 is a high voltage and high current SMPS In order to avoid potentially hazardous situations including fire hazard safety recommendations must be followed Only authorized staff can install the unit 4 1 1 Input voltage Vin 3x400 500VAC range 340 550VAC or 520
11. error Code Type Offending value TOW CER Ml Time stamp s n TU E E hh mmi Event Vin gt 530VAC The SMPS remains switched off until Vin is decreased below 520VAC 6 6 6 PFC Under Voltage error Code Type Offending value PUU CERY 295 Time stamp ddmmss hh mm ss Event VPFC lt 300V The internal PFC bus voltage can be no more regulated When such error occurs the device goes in a latched shutdown mode A mains power cycle is needed to attempt a recover from such error Most of the cases this is an unrecoverable error and the device needs to be serviced 6 6 7 PFC Over Voltage error Code Type Offending value POW CER 455 Time stamp ddmmss hh mmi ss Event VPFC gt 450V The internal PFC bus voltage can be no more regulated When such error occurs the device goes in a latched shutdown mode A mains power cycle is needed to attempt a recover from such error Most of the cases this is an unrecoverable error and the device needs to be serviced NPS2400 User s Manual Rev 3 0 17 02 2015 Page 31 38 VALIS SWITZERLAND www nextys com 6 6 8 DC DC ConverterFailure error Code Type PSF CER Time stamp e uw TTE hh mmi ss Event Vout OV and lout OA The internal DC DC converter is not working properly When such error occurs the device goes in a latched shutdown mode A mains power cycle is needed to recover from such error Most of the cases this is an unrecoverable error and the device nee
12. is shown in Figure 20 2 stages are implemented 1 Constant current charge during this phase the SMPS operates as a constant current source limited at 0 1C or 0 2C with the maximum voltage limited to the Battery charge voltage 6 4 15 set Stage 2 starts after 8h fast charge or 16h normal charge 2 Trickle float charge the current is limited to 0 05C to avoid overcharge and compensate self discharge of the battery NPS2400 User s Manual Rev 3 0 17 02 2015 Page 20 38 VALIS SWITZERLAND www nextys com 6 User interface 6 1 Principles of operation An integrated user interface composed of an LCD alphanumerical 2 x 16 characters with backlight 2 status LEDs and 4 buttons is present on the NPS2400 Through this interface the user can modify monitor and control the SMPS behaviour The physical layout of the interface is shown in Figure 14 ALARM A Figure 21 User interface physical layout MENU KEY Used to enter and exit various pages in the user menu DOWN KEY Scrolls down menus and values UP KEY Scrolls up menus and values OK KEY Confirms selection ia ALARM A Shows an abnormal condition either external or internal to the SMPS GREEN DC OK 1 in power supply modes shows that the device is operating correctly and the output voltage is LED CHARGE eae 2 in battery charger mode blinks 1Hz during charging and turns ON when the battery is charged NPS2400
13. o0 0 0 N O G66666666 6666666 GND AUX 12V AUX 4 SENSE e SENSE o SHARE S SHARE 0 10V 4 20mA GND AUX _ _ NC COM Shutdown Shutdown TSENSE TSENSE Figure 2 Auxiliary connector NPS2400 User s Manual Rev 3 0 17 02 2015 Auxiliary Supply GND Auxiliary Supply 12VDC 100mA Remote Voltage Sense Remote Voltage Sense Load Share Bus Load Share Bus Output Current Measurement 0 10V Output Current Measurement 4 20mA Auxiliary Supply GND Auxiliary Relay NO Contact Auxiliary Relay NC Contact Auxiliary Relay COM Contact Remote Shutdown Remote Shutdown Temperature Sensor Temperature Sensor I Os Page 5 38 VALIS SWITZERLAND www nextys com 3 Functional description A simplified block diagram of the NPS2400 is shown in Figure 3 Main Power Stage Curren Doubler DC Output 3 3 phase Bridge Active Surge Protection H f T 24V 100A And Inrush Limiter Power Factor Corrector Capacitors Bank Resonant Full Bridge Power Stage Synchronous Rectifier ORing Controller 7 Input terminal tifier 3x340 550VAC Load Share gt Share Bus controller Phase Shift ZVT IOUT 0 10V Integrated Controller Remote Current Measure IOUT 4 20mA Figure 3 NPS2400 simplified block diagram NPS2400 is a 3 phase input SMPS wi
14. 3 0 17 02 2015 Page 22 38 VALIS SWITZERLAND www nextys com 6 3 1 Power ON test screen Action Self test in Progress 6 3 2 ID screen Device Name HPS2460x Device Serial Number E dde e e ee a a a 6 3 3 Default screen This is the screen that appears any time if there is no activity on the other menus for gt 1 minute It shows the on going alarms if present or the on line values of the main parameters of the unit Error or Alarm type OL Alarm Offending value Ioutzi183H Line 1 shows the error or alarm type while line 2 shows the offending value causing it When an alarm is present the ALARM A LED is ON and the buzzer is active if enabled If no error or alarms are present and the mode is set to OVERBOOST or CURRENT LIMIT the most significant measures are shown Uin Pout Ui xxxl Po x xkl Uout lout Uo xx xW IzxxxH If no error or alarms are present and the mode is set to BATTERY CHARGER the charger status and other useful measures are shown Charger status Temperature BC FLOAT XX a xL Uout lout llo2xx xU IzxxxH The available charger statuses are BC CC Constant Current charge in process BC CV Constant Voltage charge in progress BC FLOAT Float Charge in progress BC OT Battery environment over temperature condition gt 50 C only if provided with optional Temp sensor BC ERROR Battery is faulty or not connected BC REVIVE Charger is trying to revive the battery
15. 500VAC Figure 11 Connection when used as battery charger The 24 and 48 models feature a function of battery charger 24 model can charge 12V and 24V batteries with capacity from 50Ah to 1000Ah while 48 model can charge 48 V batteries only with capacity ranging from 25Ah to 500Ah The device has an input for an optional 10kQ NTC Murata NPSDOXH10SFEBO or equivalent used to sense the battery ambient temperature When using the temperature sensor the battery can be recharged in a more accurate way since the device regulates its charging voltage according to the battery ambient temperature A Respect the battery polarity The device is NOT protected against battery polarity reversal A connection with wrong battery polarity will damage the device and generate a fire hazard NPS2400 User s Manual Rev 3 0 17 02 2015 Page 13 38 VALIS SWITZERLAND www nextys com 4 3 6 Output current remote measurement 3 x 400 500VAC 24VDC 100A 4 5 3 5A 50 60Hz OUTPUT INPUT T T l SENSE SHUTDOWN SHUTDOWN OV lout 0A Figure 12 0 10V output for SMPS output current remote measure connection 3 x 400 500VAC 24VDC 100A 4 5 3 5A 50 60Hz OUTPUT INPUT k mt 5 5 k 20mA lout nom S 7 4mA lout 0A Figure 13 4 20mA output for SMPS output current remote measure connec
16. 7 Battery charge mode only on 24 and 48 models Setting Bat ch mode Value HORMAL This submenu is present only if operating mode is set to BATTERY CHARGER Use the UP DOWN keys to select the desired battery charging mode between NORMAL 0 1C or FAST 0 2C Default NORMAL NPS2400 User s Manual Rev 3 0 17 02 2015 Page 27 38 VALIS SWITZERLAND www nextys com 6 4 18 Relay active on DC OK Setting Relay DC OK Value EMHABLED Use the UP DOWN key to enable disable the relay on DC Ok the relay is excited when Vout gt 0 9 Vout_set In BATTERY CHARGER mode this relay function is disabled Default ENABLED 6 4 19 Relay active on lout OK Setting Relay Tout ORK Value DISABLED Use the UP DOWN keys to enable disable the relay on lout OK the relay is excited when lout lt lout_alarm In BATTERY CHARGER mode this relay function is disabled Default DISABLED 6 4 20 Relay active on Temperature OK Setting Relay Teme OK Value DISABLED Use the UP DOWN key to enable disable the relay on Temperature OK the relay is excited when the internal transformer temperature is lt 110 C 230 F In BATTERY CHARGER mode this relay function is disabled Default DISABLED 6 4 24 Relay active on AC OK Setting Relay AC OK Value DISABLED Use the UP DOWN key to enable disable the relay on AC input OK means the AC voltage is within the user define
17. H 7 LOAD Figure 8 Connection using remote voltage sense When the load is placed far away from the SMPS or when tight voltage accuracy is needed by the load the NPS2400 provides a feature to compensate the output cables I R voltage drop It can tightly regulate the output voltage directly at the load terminals and not at the SMPS output terminal within 10mV of precision For applying this feature 2 additional cables any flex wire from 0 5mm 20 AWG to 1 5mm 15 AWG are connected from the load terminals to the SMPS auxiliary connector SENSE and SENSE terminals It is strongly recommended to twist the 2 wires together in order to improve the noise and interference immunity AN Please check and respect the polarity of the sense wires If the polarity is reversed the SMPS output voltage of the SMPS will increase to its maximum Although not harmful for the SMPS itself an output overvoltage error will be triggered this condition can damage the load Note 1 The voltage displayed on the LCD screen is always the voltage at the SMPS output and not the voltage at the load terminals Note 2 In case of very long output cables with consistent I R cable drop the device could no more be able to deliver the rated output current The rated output power is however maintained Example Vload 24V cable drop 0 5 V per cable voltage at SMPS output 24V 2 0 5V 25V Maximum output current 2400W 25 V 96A not 100A NPS2400 User s Manual Re
18. HARE signals must be daisy chain connected on all SMPS This allows equal current sharing between all the SMPS Note 1 When used in parallel for power increase the maximum number of SMPS is 4 units Note 2 When used in parallel for power increase the maximum total output current will be 0 9 lout N where N is the number of connected SMPS The maximum power is thus limited to 0 9 N Pnom lt 8 7kW Note 3 To achieve the best power sharing between the parallel connected devices the output voltage of each device must be adjusted at the same value with a tolerance of maximum 0 2V The share bus will then slightly vary the output voltage of each SMPS to achieve the best possible power sharing A Do not connect anything to the auxiliary connector SENSE SENSE when using the SHARE SHARE connection Wrong connection to these signals may damage the devices and the connected load A Respect the polarity of the SHARE SHARE connections NPS2400 User s Manual Rev 3 0 17 02 2015 Page 12 38 VALIS SWITZERLAND www nextys com 4 3 5 Battery charger connection only on 24 and 48 models 3 x 400 500VAC 24VDC 100A 4 5 3 5A 50 60Hz OUTPUT INPUT u lez ff o f Y Z oo x x x L1 L2 L3 LAS HH d qo002z2 lt w wig e I I ZTU as Z 5 j 0 O oln alo oF O BARA 7 peseseseeseseses A P Optional L 4 L J BATTERY M S 3x 400
19. RE Any connection to these signals may damage the units and the connected load NPS2400 User s Manual Rev 3 0 17 02 2015 Page 11 38 VALIS SWITZERLAND www nextys com 4 3 4 Connection in parallel power and redundancy O ALARM A O ALARM A EEUU 60606 000 24VDC 100A nam we 24VDC 100A 50 60Hz 50 60Hz OUTPUT INPUT OUTPUT INPUT 6 ien wee 66 buggy vev H 911511 3 pee Lii Rr ZL OSS sss tN EN i 0 o F m o 6 fo ese wj dv DD OOO O OO LOAD C LO 1 1 W 3x 400 500VAC Figure 10 Connection of multiple units in parallel The parallel connection may have one of the following purposes 1 Redundancy several units unlimited number in theory 2 4 units in practice can be used to increase the system reliability If one SMPS fails the load will be still powered from another SMPS connected in parallel The NPS2400 integrates an active ORing diode so that several units can be directly connected in parallel without the need for an external ORing module In this configuration the maximum power sunk by the load must be lt Pnom The SHARE SHARE signals should NOT be connected 2 Power increase this configuration is used to increase the system power capacity by summing the output current of each individual SMPS connected in parallel to the load To obtain the system s best performance SHARE S
20. User s Manual Rev 3 0 17 02 2015 Page 21 38 VALIS SWITZERLAND www nextys com 6 2 Contrast adjustment While in DEFAULT SCREEN keep the OK KEY pressed for at least 3 seconds and then use the UP DOWN KEYS to adjust the desired LCD contrast 6 3 Initial and standard screens Initial and standard screens are shown in Figure 22 POWER ON TEST SETUP EDIT SCREEN 1 5 seconds elapsed MEASUREMENT Menu Key ID SCREEN DEFAULT SCREEN 3 seconds elapsed EVENTS LOG UNIT INFO Figure 22 User interface layout Down Key UP Key When the SMPS is energized a POWER ON TEST is performed and a specific screen is displayed This test checks the digital controller Once the test is concluded an D SCREEN is shown for 3 seconds Consequently the DEFAULT SCREEN is shown To activate the menu the user must press the MENU KEY to exit the menu user can press on the MENU KEY again Once the menu is enabled the user presses the UP DOWN KEYS to scroll between submenus The available menus are 1 SET UP 2 MEASUREMENTS 3 EVENTS LOG 4 UNIT INFO used to configure the SMPS by the user used to monitor SMPS voltages currents and temperature accesses various logged events alarms and errors All are provided with a time stamp displays specific information of the unit If there is no activity in a submenu for 1 min the DEFAULT SCREEN is displayed Detailed description of the submenus is given below NPS2400 User s Manual Rev
21. V or 48V batteries from 50Ah to 1000Ah can be charged 2 charging modes are possible normal charge and fast charge In normal charge mode the charge current is limited to 0 1C C battery nominal capacity expressed in Ah and the charging time takes approximately 12h In fast charge mode the charge current is limited to 0 2C and the charging time is approximately 8h The charging algorithm is shown in Figure 19 3 stages are implemented 1 Constant current charge during this phase the SMPS operates as a constant current source limited at 0 1C or 0 2C The battery voltage progressively increases until it reaches the constant voltage charge value Stage 2 starts when this voltage is reached 2 Constant voltage charge during this phase the SMPS operates as a constant voltage source limited in current at 0 1C or 0 2C The output voltage is kept constant at 14 4V for 12V batteries 28 8V for 24V batteries or 57 6V for 48V batteries If the external temperature sensor is used the constant voltage charge voltage is varied based on the battery ambient temperature 3 mV C During this phase the current sunk by the battery starts to decrease Stage 2 ends when the current sunk by the battery becomes lower than 0 03C or after 8 hrs of constant voltage charge When Phase 2 is finished the DC OK LED is ON and the relay is excited indicating that the charging process is completed 3 Floating charge during this phase the SMPS operates as a constant voltag
22. Value Tue 84 61 2611 Use the UP DOWN keys to modify the date Press OK or MENU key to advance the cursor to the next editable field once the editable fields are finished press one more time to save and return to previous menu 6 4 8 Time Setting Time V l 11 19 38 Use the UP DOWN keys to modify the time Press OK or MENU key to advance the cursor to the next editable field once the editable fields are finished press one more time to save and return to previous menu 6 4 9 Remote shutdown polarity Setting Remote ShutDoun Value HIGH Use the UP DOWN keys to modify the remote shut down polarity LOW or HIGH Default HIGH 6 4 10 Temperature measurement unit Setting Temp unit Value CELSIUS Use the UP DOWN keys to modify the temperature measurement unit CELSIUS or FAHRENHEIT Default CELSIUS 6 4 11 Enable buzzer Setting Enable buzzer Value DISABLED Use the UP DOWN keys to enable disable the buzzer in case of an alarm During an alarm the buzzer can also be muted by pressing the OK button while in DEFAULT SCREEN for more than 3 seconds Default DISABLED NPS2400 User s Manual Rev 3 0 17 02 2015 Page 26 38 VALIS SWITZERLAND www nextys com 6 4 12 Operating mode Setting OrFeraLling mode Value OUERB DST Use the UP DOWN key to select the desired operating mode between OVERBOOST CURRENT LIMIT BATTERY CHARGER battery charger only available on the 24 and 48 mo
23. d output power Internal PFC circuit failure latched shutdown 7 2 Output Overload OL and short circuit either constant current or hiccup mode at Output protections 150 load with user settable OL threshold Overvoltage active with latched shutdown Overboost allows 150 output power for max 5sec then off for max 10sec Operating modes Constant current adjustable between 10 and 100 load Battery charger for lead acid and NiCd NiMH only on 24 and 48 models 7 3 Interface LCD display 16 x 2 characters multi language User Interface M 4 pushbutton keys for various commands and menu navigation DC OK green LED Status Signals Alarm red LED indicating a fault Alphanumeric LCD display Contact rating 24V 1A Activated for various functions e DC OK active when 0 9 Uset lt Uout lt 1 1 Uset AC OK active when Uin gt Uin_min and Uin lt Uin_max Uin_min Uin_max user settable OVERLOAD active when out gt lout max user settable OVERTEMPERATURE active when the internal temperature is exceeding the Tmax value CHARGE COMPLETE active when the battery charge is finished only on 24V and 48V models 0 10V voltage output for output current 0 100 In measurement 4 20mA current output for output current 0 100 In 5 5 3 3 Relay dry contact Output Current Remote output current Internal temperature External temperature NPS2400 User s Ma
24. d window the relay is excited when the Vin_min_alarm lt Vin lt Vin_max_alarm In BATTERY CHARGER mode this relay function is disabled Default DISABLED 6 4 22 Product name Setting Product name Value HPS 4600 Use UP DOWN key to change character and OK key to increment to the next string character Default NPS2400 NPS2400 User s Manual Rev 3 0 17 02 2015 Page 28 38 VALIS SWITZERLAND www nextys com 6 5 Measurements The UP DOWN keys are used to scroll between pages MENU key is used to return to the previous menu The screen is refreshed every 500 ms The average values are calculated from the beginning of the operation of the unit 6 5 1 Page 1 Input voltage output power Ul xxxll Po x xk Output voltage output current Llao2xx xl T xxxA 6 5 2 Page 2 Average output power Pow Cav J xxxxlhl Average output current LouLt av J xxx 4A 6 5 3 Page3 Actual internal temperature TemeLac Lor xD Average internal temperature TemnpLav J xx xC 6 5 4 Page 4 Charger status Battery Ambient Temp BC_FLOAT xx XC SOR Uo xx xxV T xxx Output Measurements accuracy 170V 5 Input voltage 5VAC Output voltage H T ace 1 8V 4 Output current s Remote output current t 5 2A Internal temperature External temperature NPS2400 User s Manual Rev 3 0 17 02 2015 Page 29 38 VALIS SWITZERLAND www nextys com 6 6 Event log There a
25. dels Default OMERBOOST 6 4 13 Battery type eng Bat tyre Value Lead acid This submenu is present only if operating mode is set to BATTERY CHARGER Use the UP DOWN key to select the nominal battery type Possible choices are Lead acid and Nickel Default Lead acid 6 4 14 Battery nominal voltage only for lead acid on 24 and 48 models Setting Bat nom volt Value 12 This submenu is present only if operating mode is set to BATTERY CHARGER Use the UP DOWN key to select the nominal battery voltage of lead acid batteries Possible choices are 12V or 24V for 24 model and 48V for 48 model Default 12V 48V model dependent 6 4 15 Battery charge voltage only for nickel on 24 and 48 models Setting Bat ch volt Value 127 Sl This submenu is present only if operating mode is set to BATTERY CHARGER Use the UP DOWN key to select the battery charge voltage for NiCd NiMH batteries Range is 12 8V to 29V for 24 model and 25 6V to 56V for 48 model Default 12 8V 25 6V model dependent 6 4 16 Battery capacity only on 24 and 48 models Setting Bat carFaciLlu Value Sadak This submenu is present only if operating mode is set to BATTERY CHARGER Use the UP DOWN keys to select the nominal battery capacity Range is 50Ah to 1000Ah for 24 model and 25Ah to 500Ah for 48 model Default 50Ah 25Ah model dependent 6 4 1
26. der can be activated by factory see 6 6 20 The remainder will be activated after a user definable hours of operation To acknowledge the reminder the user must keep the button up and the button down pressed for more then 3 second 5 Operating modes NPS2400 power supply has 3 different operating modes user selectable see 6 4 12 e Overboost OB e Constant current limit CC e Battery charger BC available only on 24 and 48 models 5 1 Overboost mode default NPS2400 in Overboost mode can provide a temporary power boost up to 15096 3600W of its rated power for a maximum of 5 seconds This mode is suitable for powering loads with high inrush current such as motors or highly capacitive loads It also helps in blowing fuses of failed loads and separate those from other active loads connected in parallel The output U I behaviour in OB mode is presented in Figure 17 Uout Unom Hiccup cycle after bsec 0A Unom pease ee ee S a Inom 1 5 Inom lout Figure 17 Output voltage vs current characteristics in Overboost mode As soon as the output current becomes Inom a timer is started when the timer elapses 5 s the output is shut OFF and kept OFF for 10 seconds hiccup cycle 5 s ON 10 s OFF In case of a dead short circuit on the output Uout lt 0 1 Unom the maximum current is still limited at 1 5 Inom but the output shuts off after about 100 ms entering a hiccup cycle NPS2400 User s Manual Rev
27. ds to be serviced 6 6 9 Short Circuit error Code Type SC CER Time stamp s u T T E E hh mm s Event While in CONSTANT CURRENT mode the voltage drops below 1V for more then 0 5 seconds The device enters a hiccup cycle 6 6 10 Over Load alarm start Code Type Offending value OLS BL 166A Time stamp ddmmsws hh mm ss Event lout gt loutAlarm 6 4 6 6 6 11 Over Load alarm end Code Type Maximum value OLE BL 13640 Time stamp s e TT E hh mm ss Event Over Load condition alarm ends Maximum value is the highest lout measured during the alarm 6 6 12 Over Temperature alarm start Code Type Offending value JTS AL 115C Time stamp ddmmas hh mm ss Event Transformer temperature gt 115 C 239 F 6 6 13 Over Temperature alarm end Code Type Maximum value JTE cHL 2 115C Time stamp ddmma3 hh mm 55 Event Over Temperature alarm condition ends Maximum value is the highest temperature measured during the alarm 6 6 14 Vin Under Voltage alarm start Code Type Offending value IULS AL 2 SSB Time stamp ddmmsws hh mm ss Event Vin lt VinMinAlarm 6 4 2 NPS2400 User s Manual Rev 3 0 17 02 2015 Page 32 38 VALIS SWITZERLAND www nextys com 6 6 15 Vin Under Voltage alarm end Code Type Minimum value UVE c AL 2 319 Time stamp ddmmss hh mm ss Event Vin Under Voltage alarm condition ends Minimum value is the lowest Vin measured duri
28. e ZAAL Use the UP DOWN keys to select the minimum input voltage alarm threshold Possible range is 340 V lt Vin min alarm lt Vin max Alarm Default 340V 6 4 3 Vin max alarm Setting Vin min alarm Value Sal Use the UP DOWN keys to select the maximum input voltage alarm threshold Possible range is Vin min alarm lt Vin max alarm lt 520V Default 520V 6 4 4 Vout Setting Wout Value 24 66 Io 0 A Use the UP DOWN keys to set the desired output voltage within the possible values for each model The range is model dependent and shown in Table 1 The actual output current is displayed in square brackets Default 24 00V 48 00V 72 00V 170 0V model dependent 6 4 5 Nominal lout Setting Tout nom Value actual output voltage 1 RA Vo 24 AAN Use the UP DOWN keys to set the desired nominal output current In case of OVERBOOST mode 150 of this value is supplied for a maximum of 5 consecutive seconds When the current exceeds this value an overload condition is triggered The actual output voltage is displayed in square brackets Default 100A 50A 33A 14A model dependent NPS2400 User s Manual Rev 3 0 17 02 2015 Page 25 38 VALIS SWITZERLAND www nextys com 6 4 6 lout alarm threshold Setting Tout alarm Value 1 A Use the UP DOWN keys to select the desired output current alarm threshold Default 100A 50A 33A 14A model dependent 6 4 7 Date Setting Date
29. e ree eee 36 Te OM c E H 36 FEE CC escapes cna S S 36 1 Acronyms NPS2400 Communication board Used to interface a PC to the SMPS Power Factor Corrector Power Factor Corrector S NPS2400 User s Manual Rev 3 0 17 02 2015 Page 3 38 VALIS SWITZERLAND www nextys com 2 Introduction The NPS2400x series is a high power high performance CPU controlled 3 phase input SMPS family These products present many advanced features such as Very high efficiency gt 92 Compactness PFC input Operating also with DC input Wide range of output voltage Integrated active ORing circuit for all models Increased input protection against various mains abnormalities overvoltage surge micro interruptions etc Remote shutdown Voltage sense function 4 20 mA and 0 10 V output current remote measurement User programmable auxiliary dry contact Load share up to 4 units can be paralleled for redundancy or power increase 3 operating modes o Overboost which can deliver up to 150 of the rated current for a maximum of 5 seconds o Constant current o Lead acid and NiCd NiMH battery charger only on 24 and 48 models with temperature compensation e Microcontroller based for o Monitoring o Operating control and supervision e User interface o Embedded user interface 4 user buttons 2 LEDs and 1 LCD display Displays real time status and alarms History of events
30. e source but the output voltage is decreased to 13 5V for 12V batteries 27V for 24V batteries or 54V for 48V batteries If the external temperature sensor is used the floating charge voltage is varied based on the battery temperature This phase is used to compensate the battery self discharge current and to keep the battery at its maximum capacity The charge ends after Phase 2 Phase 3 can be extended for an indefinite period of time to keep the battery charged when not used Battery voltage is checked before starting a charge cycle For batteries that were deep discharged if the battery voltage is 8 4V for 12V batteries 16 8V for 24V batteries or 33 6V for 48V batteries the charger tries to revive the battery During revive the battery is charged with 0 04C If after 10 hours the voltage on the battery still too low a battery error is triggered otherwise a charging cycle is started Stage 1 To exit the error state the user must acknowledge the error using the OK button NPS2400 User s Manual Rev 3 0 17 02 2015 Page 19 38 VALIS SWITZERLAND www nextys com 5 3 2 Nickel NiCd NiMh Stage 1 Stage 2 constant current charge trikle float charge battery voltage Battery charge voltage on battery current 0 2C Fast 16h Normal 8h Fast Time Figure 20 Nickel battery charging profile This operating mode performs nickel battery charging both NiCd and NiMh batteries can be charged The charging algorithm
31. er Float Battery charged float charge phase Battery Charger Error Battery Error i e Vbat too low BC OT Battery Charger Over Battery ambient temperature lt 50 C Temperature Battery Charger Reviving Battery charger is trying to revive the battery Table 5 Events The UP DOWN keys are used to scroll between events The log report is exportable to a PC see using Interface box NPS2400_CB NPS2400 User s Manual Rev 3 0 17 02 2015 Page 30 38 VALIS SWITZERLAND www nextys com 6 6 1 Over Load error Code Type Offending value OL CER 142A Time stamp ddmma2 hh mm ss Event In OVERBOOST mode lout gt lout nom for more then 5 seconds The device enters a hiccup cycle 6 6 2 Over Temperature error Code Type Offending value OT ER 125C Time stamp ddmmvs hh mm ss Event transformer temperature gt 125 C 257 F The device trips to thermal shutdown 6 6 3 Output Overvoltage error Code Type Offending value JOU ER Ag ll Time stamp delmmes hh mm ss Event Unit internal error The output voltage can be no more regulated and it trips to its maximum value When such error occurs the device goes in a latched shutdown mode A mains power cycle is needed to recover from such error 6 6 4 Input Under Voltage error Code Type Offending value IUN ERS 5229 Time stamp ddmma hh mm ss Event Vin lt 330VAC The SMPS remains switched off until Vin gt 340VAC 6 6 5 Input Over Voltage
32. lide using a screwdriver and then free the bottom part by rotating the device upwards NPS2400 User s Manual Rev 3 0 17 02 2015 Page 8 38 VALIS SWITZERLAND www nextys com 4 3 Connecting the device 4 3 1 Standard connection Go Gv OOO COMMUNICATION Q ALARM A INTERFACE CREE gt d EBBER 5 DC OK CHARGE 3 x 400 500VAC 24VDC 100A 4 5 3 5A 50 60Hz OUTPUT INPUT T4122 22a DEAE T Figure 6 24VDC 100A OUTPUT r 1 Figure 7 Standard device connection 3 x 400 500VAC 4 5 3 5A 50 60Hz INPUT h SENSE SHUTDOWN SHUTDOWN COM eNC NO GND AUX 4 20mA 0 10V SHARE SHARE SENSE SENSE GND AUX 00000060660000096 520 750VDC Standard device connection This is the basic configuration connect the mains and the load using wires of appropriate gauge as stated in 4 1 A Check the polarity of the output load before applying mains NPS2400 User s Manual Page 9 38 Rev 3 0 17 02 2015 VALIS SWITZERLAND www nextys com 4 3 2 Connection with remote voltage sense 3 x 400 500VAC 24VDC 100A 4 5 3 5A 50 60Hz OUTPUT INPUT LL w lez 888995 Nx L1 L2 L3 MHES RET ylez 0 D O SV ooo Oo BA I eee gee P S yr P VA WA 4 Y LL a ea A a D EEEN f Y A i J YU
33. mm Date TUE Hj B81 2811 6 7 5 Time Item Time Chh mmi Time 14 69 77 6 7 6 Mains event counter Item Mainz events Total count M This counter is incremented every time a mains related event happens Mains related events are Input Under Voltage Input Over Voltage and Phase Loss 6 7 7 Load event counter Item Load events Total count wo This counter is incremented every time a load related event happens Load related events are Over Load and Short Circuit 6 7 8 Environmental event counter Item Env events Total count YYYY The counter is incremented every time an environment related event happens Environmental events are SMPS Over Temperature and Battery Ambient Over Temperature NPS2400 User s Manual Rev 3 0 17 02 2015 Page 35 38 VALTE SWITZERLAND www nextys com 7 Technical specification Parameter Model NPS2400 24 NPS2400 48 NPS2400 72 NPS2400 170 7 1 Input 3 phase protective Earth 3x400 500 VAC 47 63 Hz or DC 340 550 VAC 520 750 VDC 500VAC 3 5A 3 5A 3 5A lt 10A active inrush current limiter gt 0 92 full load 3x10A curve C circuit breaker for DC ask factory External protection on AC line Surge protection it is strongly recommended to provide external surge arresters according to local regulations Active surge protection according to VDEO160 Input overvoltage auto restart Input protection Input undervoltage auto restart Phase loss reduce
34. ng the alarm 6 6 16 Vin Over Voltage alarm start Code Type Offending value TOS CAL Jg43uU Time stamp ddmmss hh mm ss Event Vin gt VinMaxAlarm 6 6 17 Vin Over Voltage alarm end Code Type Maximum value TOVE CAL 94 7 Time stamp delmmes hh mm ss Event Vin Over Voltage alarm condition ends Maximum value is the highest Vin measured during the alarm 6 6 18 Phase Loss alarm start Code Type Ph Loss St CAL Time stamp ddmmvs hh mm ss Event A mains phase is missing for gt 10s In case of a phase loss alarm the maximum output power is reduced an half 6 6 19 Phase Loss alarm end Code Type Ph Loss End CAL Time stamp s e TT E hh mmiss Event Phase Loss alarm condition ends 6 6 20 Maintenance Due alarm start Code Type Maint Due BL Time stamp delmm s hh mm ss Event Maintenance is due 6 6 21 Maintenance Due alarm end Code Type Maint OK AL Time stamp s e TT E hhimm ss Event Maintenance done 6 6 22 Remote Shutdown event start Code Type Rem Sh St CEV Time stamp ddmms hhimm ss Event The device has been remotely shut down through the remote shutdown input NPS2400 User s Manual Rev 3 0 17 02 2015 Page 33 38 VALIS SWITZERLAND www nextys com 6 6 23 Remote Shutdown event end Code Type Fem Sh End EN Time stamp ddmma hh mm ss Event The device exits remot shut down through the remote shutdown input 6 6 24 Power
35. nual Rev 3 0 17 02 2015 Page 36 38 VALTE SWITZERLAND www nextys com N 1 redundanc Up to 4 units in parallel with integrated active ORing circuit Up to 4 units 8 7kW total using dedicated share bus connection Current sharing accuracy better than 5 0 9 In Parallel connection with current share Remote voltage sensing Up to 1V output cables I R drop compensation Remote shutdown input Optoisolated input for remote SMPS shutdown or SMPS enable Auxiliary low power 12V output Optoisolated 12V output max 100mA load co External temperature sensor To be used when battery charging must be temperature compensated Optional communication interface NPS2400 CB Includes USB port for remote monitoring and control of the unit GENERAL 20 to 50 C 60 C with derating 4 F to 122 F 140 F with derating YES auto reset Forced air cooling with variable air flow temperature and load controlled long life fans Input output isolation 2 85kVdc 60s type test Input ground isolation 2 25kVdc 60s type test Cooling method Output ground isolation Protection degree Safety standards approvals EMC emissions EMC immunit Input connection terminal block Output connection terminal block Auxiliary connection terminal block Size W xH x D 0 75kVdc 60s type test IP20 UL508 EN61000 6 4 EN61000 6 2 EN61000 4 5 surge immunity Level IV VDE0160 Screw type 4mm AWG 11 Screw type up to 35mm AWG 2
36. r use as components in systems intended for surgical implant into the body or other applications intended to support or sustain life or for any other application in which the failure of the NEXTYS product could create a situation where personal injury or death may occur Should Buyer purchase or use NEXTYS products for any such unintended or unauthorized application Buyer Shall indemnity and hold NEXTYS 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 of personal injury or death associated with such unintended or unauthorized use even if such claim alleges that NEXTYS was negligent regarding the design or manufacture of the part The Customer should ensure that it has the most up to date version of the document by contacting its local NEXTYS office This document supersedes any earlier documentation relating to the products referred to herein The information contained in this document is current at the date of publication It may subsequently be updated revised or withdrawn All Trade Marks recognized Specifications and information herein are Subject to change without notice NPS2400 User s Manual Rev 3 0 17 02 2015 Page 2 38 VALIS SWITZERLAND www nextys com TABLE OF CONTENTS ME eon e E E A E E EE E E E E E E E E M 3 MVOC a CT 4 S FUNT Mal Fecejala MEER 6
37. re 3 categories of information saved by NPS2400 units logged for further monitoring purposes in a non volatile memory The maximum number of stored events is 408 When the storage capacity is reached the oldest event is overwritten 1 ERRORS these are critical events either external or internal to SMPS that impede the correct operation of the unit leading to its shutdown They are listed in Table 3 ID Code Name Condition J O o OL OverLoad lout gt Inom for more then 5 seconds hiccup Vout gt Max Vout Nominal 6 POV PFC Over Voltage Vpfc gt 450V _ While power converted is ON Vout OV amp lout OV 8 SC Short Circuit While in Constant Current Mode Vout OV Cd Table 3 Errors 2 ALARMS these are events either external or internal to SMPS that are out of nominal values but do not impede the operation of the unit They are listed in Table 4 Name JCondition S O Transformer Temperature gt 115 C 239 F Table 4 Alarms 3 EVENTS These are standard operations e g unit POWER ON or SHUT DOWN which are logged just for reference of operating conditions They are listed in 0 ID Code Name Condition o000000 Rem ShDown Remote Shutdown Remote Shutdown activated SMSP powered ON BC CC Battery Charger Constant Battery starts Constant Current phase Current BC CV Battery Charger Constant Battery start Constant Voltage phase Voltage BC Float Battery Charg
38. th 2 power stages supervised by a microcontroller The first stage is a power factor corrector PFC module that improves unit efficiency and reduces the harmonic current from the mains The second stage is a resonant full bridge converter that provides primary to secondary insulation and high efficiency power conversion The product offers additional features that improve the performances and the reliability Integrated active ORing diode allows connecting several devices in parallel for redundancy see 84 3 4 When several units are paralleled for increase of the total output power up to 8 7kW this circuit increases the reliability of the system in case of 1 unit failure Load share functionality allows connecting up to 4 devices in parallel to increase the output power up to 8 7kW A dedicated bus allows to equally share the total load current between the paralleled devices Remote voltage sensing allows regulating the output voltage directly at the load terminals compensating the cables and connectors voltage drop when long cables are used Active surge protection this circuit increases the reliability by protecting the device from high voltage transients occasionally present on the 3 phase mains On top of that this circuit performs also the function of active inrush current limiter reducing the inrush current to very low values Smart thermal management the fans speed is controlled according to load and internal temperature conditions
39. time stamped a Real Time Clock is implemented o PC application through USB interface using an optional interface box NPS2400 CB Remote configuration of the device Firmware upgrade Same functionalities of the embedded user interface with the ease of the PC benefits The NPS2400x family includes 4 models with 4 different output voltages and current ratings for a rated power of 2400 W peak overload power of 3600 W Rated Vout VDC Vout min VDC Vout max VDC Rated lout Ipeak A Rated peak power W NPS2400 24 24 115 29 100 150 2400 3600 NPS2400 48 50 75 2400 3600 NPS2400 72 33 50 2400 3600 NPS2400 170 14 21 2400 3600 Table 1 Models ratings NPS2400 User s Manual Rev 3 0 17 02 2015 Page 4 38 VALIS SWITZERLAND www nextys com Figure 1 shows a front view of the SMPS with a short description of the main elements 8 7 4 Display E M L r 2 Control Keys E COMMUNICATION 3 Output Connector 4 Auxiliary Connector S 5 Input Connector 6 DIN Rail Fixing Clamp 7 Communication Interface Status LEDs 9 Buzzer Internal 24NDC 100A CARES OUTPUT INPUT 2 x lele sal LTL2L3 O Ve 222 9 898 U U U U U U u u U v u 3 4 Figure 1 NPS2400 front view Figure 2 shows the auxiliary connector I Os 22 Z OOOOO x XX a Bpgezzas uumuzz 2214 9892265882 53813 O
40. tion The NPS2400 provides 2 different outputs for the remote measurement of the current delivered by the device The 2 outputs follow 2 major industry standards levels 0 10V voltage output OV corresponds to 0A output 10V corresponds to the rated output current of the SMPS 4 20mA current output 4mA corresponds to 0A output 20mA corresponds to the rated output current of the SMPS Note The 2 outputs are floating with respect to the SMPS output opto isolated but their ground is common to GND AUX Take care of ground loops when using the remote current measurement in conjunction with the 12 V auxiliary output AN Respect the connection polarity NPS2400 User s Manual Rev 3 0 17 02 2015 Page 14 38 VALIS SWITZERLAND www nextys com 4 3 7 Remote shutdown input 3 x 400 500VAC 24VDC 100A 4 5 3 5A 50 60Hz OUTPUT INPUT L1 L2 L3 SHUTDOWN COM e eNC NO GND AUX 4 20mA SHUTDOWN 0 10V SHARE SHARE SENSE SENSE 12V AUX GND AUX a LI o BORA SMPS 5 24VDC Figure 14 Remote shutdown input connection with external signal 3 x 400 500VAC 24VDC 100A 4 5 3 5A 50 60Hz OUTPUT INPUT SS JE T E D x 8 BBO 92s bugs 55 FEEFFE mt m d 5335020902900 l m 9oeocooocoocoooQ
41. to Table 1 to define the minimum wire gauge for each model Rated Vout VDC Rated lout A Minimum wire gauge mm AWG 25 3 O NPS2400C 100 25 3 NPS2400D 10 7 NPS2400G NPS2400R 2 5 13 Table 2 Recommended output wire gauge 4 1 5 Auxiliary connector wiring The auxiliary terminal block accepts wires from 0 5mm 20AWQ to 1 5mm 15AWG Strip the wire insulation for 5mm screw tightening 0 25Nm use only 60 75 Class 1 copper wires 4 1 6 Cooling Mount the device in vertical position keep at least 80mm 3inch free spacing on upper and lower side 10mm 0 4inch free spacing between adjacent devices Check periodically that the air inlets in the enclosure are free from dust and other debris that can obstruct the air flow Mount the device in the cooler zone of the cabinet The thermal protection is activated if the surrounding air temperature is gt 50 C 122 F along with continuous full load operation The device restarts automatically after cooling down NPS2400 User s Manual Rev 3 0 17 02 2015 Page 7 38 VALTE SWITZERLAND www nextys com 4 2 Mounting and dismounting the device 4 2 1 Mounting the device Figure 4 Mounting the device on DIN rail Snap on the device on IEC60715 H35 7 5 rail push the bottom side of the device towards the rail The device will be automatically locked to the rail 4 2 2 Dismounting the device Figure 5 Mounting the device on DIN rail Pull down the s
42. v 3 0 17 02 2015 Page 10 38 VALIS SWITZERLAND www nextys com 4 3 3 Connection in series EE O DC OK CHARGE Q E 2 v OOOO 24VDC 100A OUTPUT I sk O mm 1 M Ay 3x 400 500VAC Figure9 Connection of multiple units in series The series connection allows increasing the total output voltage Connect the output terminals of each device in series checking the right polarity Note 1 Before any power ON be sure to have connected the antiparallel diodes to all units The voltage rating of EACH diode should cover the TOTAL voltage of the SERIES system A diode as P600J is suitable for most applications Note 2 Only SMPS of the same model same rated output voltage can be connected in series Do not exceed gt 4 units connected in series and gt 200Vdc total voltage For other situations contact the factory Note 3 To achieve the best power sharing between the series connected devices it is recommended to regulate the output voltage of each device at the same value with a tolerance of maximum 0 1V Note 4 When using several devices in series the operating mode must be set to OVERBOOST using CONSTANT CURRENT mode can result in instabilities in case of load short circuit The maximum current setpoint shall be the same on every connected device A When the units are used in series do not connect anything to the auxiliary connector SENSE SENSE and SHARE SHA
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