Tronair 112850D0000, Operation & Service Manual

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28.5 VDC Ground Power Unit
Models 112850S0000 112850S0100 112850S0200
112850D0000 112850D0100/AV 112850D0100-A5 112850D0200
112860S0000 112860S0100 112860S0100-A4 112860S0100-A6 112860S0200
112860D0000 112860D0100 112860SD100-A5 112860D0200 112860SD200-A5
06/2013 | Rev. 03 Page | 16
6.0 TROUBLE SHOOTING (continued)
6.3 MONITORS & FAULT INDICATION
The following LEDs are used to define the color/flashing status of the GPU on the Control Panel:
Condition
(Green) Input
Power LED
(Amber)
Warning LED
(Red)
Fault LED
(Green) Output
Contactor LED
Normal Operation/Output Switch On On Off Off On
Power Off or Missing Phase or Input Overvoltage Off Off Off Off
Input Undervoltage
*Blink*
On Off On
Output Overvoltage
On *Blink* *Blink* Off
Output Undervoltage
On *Blink* Off On
Output High Overcurrent (>2100A)
On On
*Blink*
Off
Transformer Overtemperature On On On Off
SCR Overtemperature On Off *Blink* Off
Normal Operation/Output Enable Switch Off On Off Off Off
Emergency Stop Switch Pushed In Off Off Off Off
7.0 MAINTENANCE AND SERVICE
7.1 PREVENTIVE MAINTENANCE
7.1.1 General
Because of their construction, Tronair converters require practically no maintenance. The few operations necessary should be
carried out carefully since they contribute to the trouble-free operation and increased service life of the installation.
7.1.2
Cleanliness
Always ensure that the system environment is kept as free as possible of dust, metal chips, lubricants, etc. Check at regular
intervals, that all air inlets and outlets are free of dust and are not blocked by any obstructions, sheets of papers, etc. Air inlets
(underside of the roof) should be vacuumed from time to time.
In no circumstances use compressed air since this can force dust particles into the interior and cause malfunctions.
7.1.3
Voltage Check
To ensure that the set is delivering the correct voltage we recommend that this be checked at regular intervals.
7.2
SERVICE
Prior to delivery each converter is subjected to a thorough check, which includes running at full load for a prolonged period,
and the prescribed overload test. Faults should not normally occur during proper, careful handling. Faults cannot be entirely
ruled out, however, if caused by transportation, unfavorable environmental or operating conditions, or incorrect operation.
If a fault occurs and you are unable to rectify this yourself with the aid of the fault table, please contact us at:
TRONAIR , Inc. Telephone: (419) 866-6301 or 800-426-6301
1 Air Cargo Pkwy East Fax: (419) 867-0634
Swanton, Ohio 43558 USA E-mail: sales@tronair.com
Website: www.tronair.com
With all enquiries please state the model number and serial number of the equipment. These are located on the front panel of
the unit.