4�0
OPERATION AND DISPLAY PANEL
4.1 Overview
This chapter describes the functions and operation of the UPS display panel� The LCD is composed of an LED mimic power
flow diagram, fault LED indicator and LCD screen to show detailed operational information and UPS alarm list using the
menu buttons� For location and information about the display panel, refer to
Figure 51
below
Figure 51: Operation and display panel
Mimic LEDs
The mimic power flow LEDs indicate current operating state of the UPS� The state descriptions of the LEDs are given in
Table 17
�
Table 17: LED Descriptions
LED
State
Description
AC LED
On (Green)
The rectifier is functioning normally
Flashing (Green)
The AC mains is normal, but the rectifier is not functioning properly
On (Red)
The rectifier is faulty
Off
The AC mains is abnormal, and the rectifier is not functioning
Battery LED
On (Green)
The battery is discharging
Flashing (Green)
The battery has a pre-alarm of low voltage
On (Red)
The DC-DC converter is faulty
Off
The battery is charging, and the DC-DC converter is not functioning
Bypass LED
On (Green)
The bypass is supplying power
On (Red)
The bypass is abnormal and not available
Off
The bypass is normal, but not supplying output power
Inverter LED
On (green)
The inverter is supplying output power
Flashing (green)
The inverter is starting up, in soft start or phase locked, and is not supplying output power
On (red)
The inverter is faulty
Off
The inverter is off
Output LED
On (green)
The UPS output is supplying power
Flashing (green)
The UPS internal manual bypass is supplying output power
On (red)
The UPS has output overload
Off
The UPS does not have output power
Fault LED
On (yellow)
The UPS has an alarm or alarms
On (red)
The UPS has one or more faults
Off
UPS operating normally with no alarm or fault conditions
44 | 4�0
OPERATION AND DISPLAY PANEL
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: [email protected]
