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NPS2400 

User’s Manual 

Rev. 3.0 

– 17.02.2015 

Page 30/38 

 

 

6.6  Event log 

 
There  are  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 

OL 

Over Load 

Iout > Inom for more then 5 seconds (hiccup) 

OT 

Over Temperature 

Transformer Temperature > 125°C (257°F) 

OOV 

Output Over Voltage 

Vout > Max Vout Nominal 

IUV 

Input Under Voltage 

Vin < 330V 

IOV 

Input Over Voltage 

Vin > 530V 

PUV 

PFC Under Voltage 

Vpfc < 300V 

POV 

PFC Over Voltage 

Vpfc > 450V 

PSF 

Phase Shift Failure 

While power converted is ON Vout = 0V & Iout = 0V 

SC 

Short Circuit 

While in Constant Current Mode Vout = 0V 

 

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. 

 

ID 

Code 

Name 

Condition 

20 

OLS 

Over Load Start 

Iout > IoutAlarm (§6.4.6) 

21 

OLE 

Over Load End 

Overload condition ends 

22 

OTS 

Over Temperature Start 

Transformer Temperature > 115°C (239°F) 

23 

OTE 

Over Temperature End 

Over Temperature condition ends 

24 

IUVS 

Input Under Voltage Start 

Vin < VinMinAlarm (§6.4.2) 

25 

IUVE 

Input Under Voltage End 

Input Under Voltage condition ends 

26 

IOVS 

Input Over Voltage Start 

Vin > VinMaxAlarm (§6.4.3) 

27 

IOVE 

Input Over Voltage End 

Input Over Voltage condition ends 

28 

Ph Loss St. 

Phase Loss Start 

SMSP working on two phases only 

29 

Ph Loss End 

Phase Loss End 

Phase Loss condition ends 

 

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 

40 

Rem. ShDown 

Remote Shutdown 

Remote Shutdown activated 

41 

Power ON 

Power ON 

SMSP powered ON 

50 

BC CC 

Battery Charger Constant 
Current 

Battery starts Constant Current phase 

51 

BC CV 

Battery Charger Constant 
Voltage 

Battery start Constant Voltage phase 

52 

BC Float 

Battery Charger Float 

Battery charged, float charge phase 

53 

BC Error 

Battery Charger Error 

Battery Error, i.e. Vbat too low 

54 

BC OT 

Battery Charger Over 
Temperature 

Battery ambient temperature < 50°C 

55 

BC Revive 

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

Summary of Contents for NPS2400

Page 1: ...NPS2400 2400W High Efficiency Power Supply User s Manual...

Page 2: ...o 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...

Page 3: ...arger mode available only on 24 and 48 models 19 6 User interface 21 6 1 Principles of operation 21 6 2 Contrast adjustment 22 6 3 Initial and standard screens 22 6 4 Set up menu 24 6 5 Measurements 2...

Page 4: ...current o Lead acid and NiCd NiMH battery charger only on 24 and 48 models with temperature compensation Microcontroller based for o Monitoring o Operating control and supervision User interface o Em...

Page 5: ...Rev 3 0 17 02 2015 Page 5 38 Figure 1 shows a front view of the SMPS with a short description of the main elements Figure 1 NPS2400 front view Figure 2 shows the auxiliary connector I Os Figure 2 Aux...

Page 6: ...tage 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 to...

Page 7: ...according to local regulations 4 1 3 Input connector wiring The input mains terminal block accepts wires up to 4mm2 11AWG Strip the wire insulation for 8mm screw tightening torque 0 5 0 6Nm use only...

Page 8: ...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 1 2...

Page 9: ...ce 4 3 1 Standard connection Figure 6 Standard device connection Figure 7 Standard device connection This is the basic configuration connect the mains and the load using wires of appropriate gauge as...

Page 10: ...erminals It is strongly recommended to twist the 2 wires together in order to improve the noise and interference immunity Please check and respect the polarity of the sense wires If the polarity is re...

Page 11: ...an be connected in series Do not exceed 4 units connected in series and 200Vdc total voltage For other situations contact the factory Note 3 To achieve the best power sharing between the series connec...

Page 12: ...individual SMPS connected in parallel to the load To obtain the system s best performance SHARE SHARE signals must be daisy chain connected on all SMPS This allows equal current sharing between all t...

Page 13: ...only with capacity ranging from 25Ah to 500Ah The device has an input for an optional 10k NTC Murata NPSD0XH103FEB0 or equivalent used to sense the battery ambient temperature When using the temperatu...

Page 14: ...device The 2 outputs follow 2 major industry standards levels 0 10V voltage output 0V corresponds to 0A output 10V corresponds to the rated output current of the SMPS 4 20mA current output 4mA corres...

Page 15: ...nly 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...

Page 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 allo...

Page 17: ...8 models 5 1 Overboost mode default NPS2400 in Overboost mode can provide a temporary power boost up to 150 3600W of its rated power for a maximum of 5 seconds This mode is suitable for powering loads...

Page 18: ...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 0 1 Unom Imax is still limited at Inom but the o...

Page 19: ...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 cur...

Page 20: ...orms nickel battery charging both NiCd and NiMh batteries can be charged The charging algorithm is shown in Figure 20 2 stages are implemented 1 Constant current charge during this phase the SMPS oper...

Page 21: ...of the interface is shown in Figure 14 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...

Page 22: ...layed This test checks the digital controller Once the test is concluded an ID SCREEN is shown for 3 seconds Consequently the DEFAULT SCREEN is shown To activate the menu the user must press the MENU...

Page 23: ...the mode is set to OVERBOOST or CURRENT LIMIT the most significant measures are shown Uin Pout Uout Iout If no error or alarms are present and the mode is set to BATTERY CHARGER the charger status an...

Page 24: ...DE BATTERY NOMINAL VOLTAGE BATTERY CHARGING VOLTAGE BATTERY CAPACITY BATTERY CHARGE MODE RELAY ON DC OK RELAY ON IOUT OK RELAY ON TEMP OK RELAY ON AC OK PRODUCT NAME Down Key UP Key TEMPERATURE UNIT B...

Page 25: ...fault 520V 6 4 4 Vout Setting Value 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...

Page 26: ...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 Value Use the UP DOWN keys to modify the remot...

Page 27: ...l dependent 6 4 15 Battery charge voltage only for nickel on 24 and 48 models Setting Value This submenu is present only if operating mode is set to BATTERY CHARGER Use the UP DOWN key to select the b...

Page 28: ...DOWN key to enable disable the relay on Temperature OK the relay is excited when the internal transformer temperature is 110 C 230 F In BATTERY CHARGER mode this relay function is disabled Default DI...

Page 29: ...rage output power Average output current 6 5 3 Page 3 Actual internal temperature Average internal temperature 6 5 4 Page 4 Charger status Battery Ambient Temp Uout Iout Output Measurements accuracy 2...

Page 30: ...Overload condition ends 22 OTS Over Temperature Start Transformer Temperature 115 C 239 F 23 OTE Over Temperature End Over Temperature condition ends 24 IUVS Input Under Voltage Start Vin VinMinAlarm...

Page 31: ...pe Offending value Time stamp Event Vin 530VAC The SMPS remains switched off until Vin is decreased below 520VAC 6 6 6 PFC Under Voltage error Code Type Offending value Time stamp Event VPFC 300V The...

Page 32: ...ype Offending value Time stamp Event Iout IoutAlarm 6 4 6 6 6 11 Over Load alarm end Code Type Maximum value Time stamp Event Over Load condition alarm ends Maximum value is the highest Iout measured...

Page 33: ...e stamp Event A mains phase is missing for 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 Time stamp Event Phase Loss alarm conditi...

Page 34: ...e stamp Event In BC mode the unit started the constant voltage phase see 5 3 6 6 27 Battery Charger Float event Code Type Time stamp Event In BC mode the unit started the constant voltage phase see 5...

Page 35: ...ted event happens Mains related events are Input Under Voltage Input Over Voltage and Phase Loss 6 7 7 Load event counter Item Total count This counter is incremented every time a load related event h...

Page 36: ...d OL and short circuit either constant current or hiccup mode at 150 load with user settable OL threshold Overvoltage active with latched shutdown Operating modes Overboost allows 150 output power for...

Page 37: ...ction YES auto reset Cooling method 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 25kV...

Page 38: ...NPS2400 User s Manual Rev 3 0 17 02 2015 Page 38 38 SMPS dimensions are shown on Figure 25 Figure 25 Dimensions...

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