Always
O
n UPS Systems
M0703_NX_Series_Operators_Manual
V1.25
2012-06-12 42
9.5
Menu 4 – Historical Event Menu
MENU 4 is reached by selecting HISTORICAL DATA on MENU 1. All abnormal events are
stored on the EEPROM and viewed through this menu based on the time each event occurred.
The record display starts with the date and time stamp allowing the user or maintenance
personnel to trace back that occurrence. A maximum of 77 records can be stored in one
EEPROM. This can be increased to 154 records with the addition of a second EEPROM.
These records are hard coded onto the EEPROM and will not be erased by cutting off the
power supply or during a complete shutdown of the UPS, i.e. they will be kept in the EEPROM
forever until they’re overwritten by the 78
th
(or the 155
th
) events.
The three most recent records are displayed at one time on the view screen. The displayed
records will move one record upward when the UP (
↑
) key is pressed, and move one record
downward when the DOWN (
↓
) key is pressed.
Below is a list of the abnormal conditions that are stored and can be displayed:
HIGH DC SHUTDOWN / SHORT CIRCUIT! / FUSE/OVERHEAT / OVERLOAD SHUTDOWN /
EMERGENCY STOP / INVERTER ABNORMAL / BYPASS ON SHUTDOWN
The display in the top right corner of the screen is the UPS installation time displayed in
year/month. This information is provided to allow the user or the maintenance personnel to
have a reference point to schedule the next preventative maintenance visit.
To return to MENU 1 press the ENTER (
↵
) key.
D
A
T
E
T
I
M
E
E V E N T S
>
R U N : 2
1
Y
R
0
3 M O
2
0
0
2
\
0
3
\
2
9
0
9
: 3 2
2
0
0
2
\
1
1
\
0
1
2
2
: 1 5
2
0
0
3
\
0
3
\
1
0
1
5
: 4 7
Figure 9.5.1
Historical Event Menu Display