GE SG SERIES 20 - Manual (Page 21)

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GE
OPM_SGS_USM_10K_40K_0US_V010.doc 21/88 Operating Manual SG Series 10, 20, 30 & 40 kVA
alarm
General alarm condition.
It blinks when one or more alarm is activated. The internal buzzer is ON.
The LED remains lighted (with alarm condition still present) and the
buzzer stops as the key “mute” has been pressed.
service check
LED ON indicates that a regular maintenance service is needed.
May be reset by a service technician only.
(See chapter 10 – Maintenance)
THE LED IS ON ALSO WHEN THE OUTPUT SWITCH Q1 IS OPEN,
INDICATING THAT THE INVERTER IS IN SERVICE MODE, NOT
SUPPLYING THE LOAD.
a) LED ON indicates that the Battery reserve lasts for only 3 more
minutes (selectable).
b) LED ON in case of over temperature or overload >125% together with
missing Utility.
After the timeout the Inverter will shut down.
All LED’s ON indicate that the Battery is fully charged.
LED a Yellow
(Fixed: indicating last 25 % of Battery backup)
(Blinking: indicating Battery backup
≤ 5%)
LED b, c, d Green
(EACH ONE INDICATING 25 % OF BATTERY BACKUP)
LED’s ON indicate the Load status of the UPS.
LED d red (
≥ 100 % load)
LED c yellow (100% load)
LED b green (66% load)
LED a green (33% load)
Fig. 5.2.1-1 LED’s on synoptic diagram
Definition of the LED’s on mimic diagram
LED 1 = Input Utility Rectifier (green)
LED 2 = Input Utility Bypass (green)
LED 3 =
Rectifier ON (green)
LED 4a = Discharging (yellow)
LED 4b = Charging (green)
LED 5 = Inverter ON (green)
LED 6 = Load on Inverter (green)
LED 7 = Load on Utility (green)
LED 8 = Output Load Voltage (green)
LED 9 = Manual Bypass (Q2) ON (yellow)
Fig. 5.2.1-2 LCD screen
User LCD Interface
Consist of a LCD screen, 4 lines with 20
characters each and six keys. It offers:
• UPS operating, AC and DC metering
information.
• History of alarms and events.
• Functionality can be programmed to meet
customer needs by changing parameters.