Modifications reserved
Page 22/71
OPM_SGS_USM_M75_M75_2US_V010.doc
User Manual
SG Series 750 UL S2 & SG Series 750 T12 UL S2
LED Stop Operation (red color)
It warns about the imminent inverter stop (default parameter = 3 min.) and the
consequent load shutdown as result of:
•
The
battery
is fully discharged and the
load
cannot be transferred on
utility
.
•
Overtemperature or overload condition (>125%) and the
load
cannot be
transferred on
utility
.
LED Alarm (yellow color)
It blinks when one or more alarm is activated. The internal
buzzer
is
ON
.
The
LED
remains lighted (with the alarm condition still present) and the buzzer
stops when the key
“MUTE”
is pressed.
The
LED
is also lit when the
Load
is not protected by UPS or in case
Q1 is open
.
LED Operation (green color)
When lit, indicates that the UPS is functioning correctly and the load is system
protected
(Load
supplied from
inverter
).
When blinking, indicates that a regular maintenance service is needed
(SERVICE
REQUIRED).
May be reset by a service technician only.
See
Section 11 – Maintenance – Service check
.
The
LED
is
OFF
when the
UPS Output Switch
Q1
is open, indicating that the
Inverter
is in
service mode
, not supplying the
load
.
User LCD Interface
The user interface consists of
a Back lit Graphic
Display (LCD)
having:
•
Synoptic diagram indicating UPS status.
•
UPS operating, AC and DC metering
information.
•
History of events (alarms and messages).
•
Functionality can be programmed to meet
customer needs by changing parameters.
•
Operation commands of the UPS.