Always
O
n UPS Systems
M0704_NX_Series_Service_Manual V2.17 2012-06-12
21
•
INVERTER SS –
inverter static switch is active.
•
SHORT CIRCUIT –
UPS output is in a short circuit state.
•
FUSE/OVER TEMP SD –
inverter has shutdown due to inverter fuse
open or heat sink temperature above operating parameters.
•
INVERTER FAIL SHUTDOWN –
inverter has shutdown due to inverter
output voltage below tolerances.
•
BYPASS ON SHUTDOWN –
inverter has shutdown because the
bypass breaker has been activated while the inverter is supplying
power to the load.
•
HIGH DC SHUTDOWN –
inverter has shutdown because the DC Bus
voltage is outside of operating parameters while the inverter is
operating.
•
OVERLOAD SHUTDOWN –
inverter has shutdown because an
overload condition has been detected on the output. The inverter will
automatically restart after the condition has been removed for a period
of seven seconds.
•
70% LOAD –
load connected to the output is over 70% of the UPS
rating.
•
110% LOAD -
load connected to the output is over 110% of the UPS
rating.
•
125% LOAD -
load connected to the output is over 125% of the UPS
rating.
•
150% LOAD -
load connected to the output is over 150% of the UPS
rating.
•
RESERVE AC FAIL –
supply voltage to the Reserve is outside of
operating window.
•
RESERVE FREQ FAIL –
supply frequency to the Reserve is outside of
operating window.
•
BATTERY LOW –
the DC bus (or battery) voltage is lower than
320VDC. Low battery shutdown is approaching.
•
BATTERY LOW SHUTDOWN –
the inverter has shutdown because
the DC bus (or battery) voltage is below operating level (lower than
295VDC).
•
RECT AC FAIL –
supply to rectifier is outside of operating window.
•
ROTATION ERROR –
supply phase rotation is incorrect.
•
RECTIFIER SHUTDOWN –
the rectifier has shutdown because the DC
bus voltage has exceeded maximum operating level (over 445VDC).
The rectifier will automatically restart 30 seconds this abnormal
condition has been cleared.
•
HIGH DC –
the DC voltage has exceeded maximum operating level
(over 430VDC). The bus voltage is limited to this voltage.
•
BOOST CHARGE –
the batteries are being boost charged by the
rectifier.
•
BATTERY TEST –
batteries are being tested.
