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
0
OL
Over Load
Iout > Inom for more then 5 seconds (hiccup)
1
OT
Over Temperature
Transformer Temperature > 125°C (257°F)
2
OOV
Output Over Voltage
Vout > Max Vout Nominal
3
IUV
Input Under Voltage
Vin < 330V
4
IOV
Input Over Voltage
Vin > 530V
5
PUV
PFC Under Voltage
Vpfc < 300V
6
POV
PFC Over Voltage
Vpfc > 450V
7
PSF
Phase Shift Failure
While power converted is ON Vout = 0V & Iout = 0V
8
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
.