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Operating problem LED (3)
This orange LED turns on when an operating problem exists, such as fan failure;
static switch power supply fault; battery temperature fault; overload fault; or bypass
AC input (mains 2) out of tolerance. The UPS continues to protect the attached
load.
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Battery operation LED (4) (UPS modules only)
This orange LED turns on to indicate that the attached load is being partially or
completely supplied by the battery. When the main AC input (mains 1) fails or is
outside tolerance, stored battery energy is supplied to the inverter, which in turn
supplies the load.
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Load protected LED (5)
This green LED indicates that the attached load is supplied by the inverter
and protected by the battery. During normal operation, this LED is
the only one that is on.
Inverter on (6) (UPS modules only)
This green pushbutton is used to start the inverter. When it is pushed, the green
“load protected” LED flashes for three seconds, indicating that the start command
has been received. When the transfer conditions are satisfied
(see Section 2.4.2, Start-up, and Section 2.4.6, Forced Transfers),
the load is transferred to the inverter output.
Inverter off (7) (UPS modules only)
This gray pushbutton is used to stop the inverter. When it is pressed for 3
seconds, the inverter stops and the UPS module is shut down; if all UPS modules
are stopped, the load is transferred to the bypass AC input (mains 2) power
source. If the uninterrupted transfer conditions are not met, this pushbutton has no
effect and the inverter can be stopped only from the hidden panel (see Section
2.4.6, Forced Transfers). See Section 2.4.2 for details of the shutdown sequence.
The alphanumeric display is located on the hidden panel,
directly below the front panel, behind the hinged cover, as
shown in Figure 2-4. For complete instructions, refer to
Section 2.3, Using the Alphanumeric Display. A brief
description of the display and controls follows:
Two-line alphanumeric display (Figure 2-6)
This 40-character, two line LCD displays general status of the UPS continuously,
and displays measurements of UPS operating parameters as selected with
the control pushbuttons.
2.2.2 Alphanumeric
Display and
Controls
2 — 6 Operation
EPS 6000 UPS Shared Systems