Section-8
www.newavenergy.com
04-1206_S8_NW_OPMPS_10-50kVA_GB_110201.doc
Page 2/2
Printed in Switzerland – Modifications reserved
8.1 TROUBLESHOOTING
8.1.1 ALARMS
In the event of an alarm condition the red LED-Indicator “Alarm” and the audible alarm will turn on.
In this case proceed as follows:
1.
Silence the audible alarm by pressing the button "Reset".
2.
Identify the cause of the alarm condition by means of the EVENT LOG in the MAIN menu.
(see
Section-4, Paragraph 4.1.3.2
)
3.
In case of doubts please contact the nearest Service centre.
4.
Fault identification and rectification information is given below.
8.1.2
MENU, COMMANDS, EVENT LOG AND MEASUREMENTS
In section 4 there is a detailed description of the Menu, Commands, Event Log and Measurements that can be
operated and displayed on the LCD. The List of Alarms and Messages are shown below.
8.1.3
FAULT IDENTIFICATION AND RECTIFICATION
The major alarm conditions that will be encountered are:
Alarm Condition
Meaning
Suggested Solution
UPS FAULT
There is a fault in the UPS and therefore
normal operation cannot be guaranteed
Call the authorised service centre for assistance
MAINS BYP/RECT
FAULT
Mains power supply is outside prescribed
tolerance
The input power to UPS is too low or missing.
If site power appears to be OK, check the input circuit
breakers etc. supplying the UPS
OUTPUT SHORT
There is a short circuit at the output of UPS
(on load side)
Check all output connections and repair as required.
OVERLOAD
Load exceeds the UPS rated power
Identify which piece of equipment is causing the overload
and remove it from the UPS.
Do not connect laser printers, photocopiers, electric
heaters, kettles etc. to the UPS
OVERTEMPERATURE
UPS temperature has exceeded the
allowed value
Check the ambient temperature of the UPS is less than
30° C.
If the ambient temperature is normal call the authorised
service centre for assistance.
BATTERY CHARGER
OFF
The attached battery and the battery
charger set-up do not correspond or
battery charger fault
Call the authorised service centre for assistance.
INVERTER FAULT
Inverter is faulty.
Call the authorised service centre for assistance.
SYNCHRON FAULT
The inverter and mains are not
synchronised.
The frequency of the input voltage to the UPS is outside
operational limits and the UPS static bypass has been
temporarily disabled.
BATTERY IN
DISCHARGE
Battery is near end of autonomy
Shutdown load connected to UPS before the UPS
switches itself off to protect its batteries
MANUAL BYP IS
CLOSED
Maintenance Bypass closed. Load
supplied by mains
This alarm is only displayed if the UPS is on
Maintenance Bypass
