![background image](http://html1.mh-extra.com/html/tronair/11a6647-1000/11a6647-1000_operation-and-service-manual_1171190052.webp)
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
- 46 -
6.0 TROUBLE SHOOTING
6.1
GENERAL
All malfunctions in the converter are recorded by the system. The latest malfunction is shown in plain
language on the display of the Control Panel. The red “Reset” lamp also lights up on the Control Panel.
Depending on the type and severity of the malfunction. The load continues to be supplied if at all
possible, otherwise the converter will shut down.
NOTE
In the event of a fault, the system fault messages should be evaluated using the chart below.
If the cause of the fault is within the converter and you cannot clear it with your own personnel, please
contact your Tronair Service representative:
1740 Eber Rd.
Telephone: 800-426-6301
Holland, OH 43528 USA
Fax: 419-866-5591
It is very helpful for fault diagnosis if you can tell us the fault messages in the order in which they
occurred.
6.2
PROCEDURES IN THE EVENT OF MALFUNCTIONS
Follow the steps below in case of malfunctions:
1. Since it is feasible that a series of abnormal events have led up to the
present fault condition, use the “Up“ arrow button to Display previous
events because it is quite possible for several faults to occur
simultaneously or in succession.
2. Press the “R” button (if is the LED is illuminated) to cancel the fault
message.
R
3. If the “R” LED continues to be illuminated, press the “R” button again to
display the next fault message.
R
4. Acknowledge the fault message by pressing the “R” button.
R
5. If further fault messages appear, continue as in points 3 and 4 above
until no further fault message is displayed.
6. After all fault messages have been acknowledged, you can scroll
through the event memory with the aid of the “Up“ and “Down“ arrow
buttons. In front of each malfunction event an “R” is displayed to
indicate that the fault is cancelled.
NOTE
The events or faults are displayed in the order in which they occur.
6.2.1
Lamp Test
A test sequence for all LED’s is started by pressing the Shift” and “R” push
buttons simultaneously.
R