28.5 VDC Ground Power Unit
Models:
11A6647-1000/1010
11B6647-1000/1010
11C6647-1000/1010
11D6647-1000/1010
11A6647C1000/1010
11B6647C1000/1010
11C6647C1000/1010
11D6647C1000/1010
11A6655-1000/1020
11B6655-1000/1020
11C6655-1000/1020
11A6655C1000/1020
11B6655C1000/1020
11C6655C1000/1020
11D6655C1000/1020
11A6665-1000/1010
11B6665-1000/1010
11C6665-1000/1010
11A6666-1000
11B6666-1000
11C6666-1000
12/2006 - Rev. 04
- 11 -
3.8.1
Mimic Display (continued)
The LED’s on the mimic display are multi-aspect, capable of displaying Red, Green or Yellow.
They are also bi-functional, able to display as steady state or flashing. With the above
combinations it is possible to display healthy state, non-operational, abnormal and fault conditions
on the mimic for each main function within the converter:
Green flashing ................................................................................................................... Starting phase
Green steady state .............................................................................................. Running or switched on
Yellow flashing ............................................................................................................................ Warning
Yellow steady state ...................................................................................................... Available or ready
Red flashing ................................................................................... Hardware fault (fuse, contactor, etc.)
Red steady state………… ...................................... .Abnormal condition (e.g. mains fault, overload, etc)
The Red indicating LED is for fault conditions that are recoverable by push button action, such as
overload. These faults are displayed as a Steady Red light. Faults requiring maintenance
attention (such as Fuse Failure) are displayed as a Flashing Red light.
3.8.2
Operator Controls
Push buttons “ON” and “OFF”, “ENABLE“ and “SHIFT” control the converter operations. The
arrow-buttons control the LC display.
3.8.3
Liquid Crystal Display (LCD)
The LC Display has a number of different functions. With the yellow arrow buttons it is possible to
display various values (input frequency, voltage and current for each phase, output voltage and
current, for example). By using the “up“ button in combination with “Shift” the Event memory can
be interrogated. If “Shift” and “Down” buttons are pushed simultaneously, the Setup menu
appears. Various menu items can be selected to program certain unit functions.
3.8.4
Lamp Test
A lamp test can be executed by pressing the “Shift” and “Reset” buttons simultaneously.
3.8.5
Emergency Stop
In an emergency, to immediately open the unit’s input and output contactors, the red button below
the Control Panel must be pressed.
IMPORTANT
Bear in mind, however, that the mains infeed is still “live”. The converter can
only be isolated by using suitable external means such as padlocking the
supply breakers of the incoming distribution board.
3.0 System description continued on following page.
Содержание 11A6647-1000
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