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 | 14
5.0
OPERATING INSTRUCTIONS
(CONTINUED)
5.5
OUTPUT VOLTAGE DC ADJUSTMENT
WARNING!
Dangerous voltages in side control panel door!
This adjustment procedure shall be performed by qualified personnel!
1. Open control panel door.
2. Connect AC input power cable to the main power outlet and apply electrical power.
3. Turn
GPU
main disconnect switch to
ON (RIGHT/HORIZONTAL)
4. Ensure green main input power lamp is
ON
, DC voltmeter is indicating 28.5 volts,
and no other fault lamps are on.
NOTE: Ensure DC output power is not on and DC lamps are off.
5. For all models, connect a load bank to the
DC OUTPUT
CABLE 1
, set load bank
to 2000 Amps
, and ensure load bank
switch is
OFF
.
6. Connect a digital multi meter to the test points on the load bank.
NOTE: The following test is for Single Output Cable units.
7. Push the
WHITE
DC ON
switch. Observe
GREEN
DC ON
lamp is
ON
.
8. Ensure load bank is
ON
and cooling fans should begin spinning.
9. Switch the load bank to
300 AMP
; verify the voltage at the load bank is
28.0(MIN) - 28.9(MAX) Volts DC.
Adjust
R-67
on
Interface Board to obtain correct voltage output.
10. Move load bank switch to
AUTO;
verify the voltage range at the load bank is
16.0 thru 28.9 volts DC
and a minimum
1600 AMPS
at full load.
11. Observe
Amber
Warning
lamp flashes if
DC output
volts drops below
21VDC.
LET LOAD BANK COOL
, push
Black
DC Off
switch.
12. Turn
GPU
main disconnect switch to
OFF (LEFT/VERTICAL)
13. Disconnect DC cable from load bank. Disconnect AC input power cable and stow cables on GPU.
6.0
TROUBLE SHOOTING
6.1
GENERAL
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:
TRONAIR
, Inc.
Telephone: (419) 866-6301 or 800-426-6301
1740 Eber Road
Fax:
(419) 867-0634
Holland, Ohio 43528-9794 USA
E-mail:
Website:
www.tronair.com
It is very helpful for fault diagnosis if you can tell us the fault messages in the order in which they occurred.
6.0 Trouble shooting continued on following page.
Summary of Contents for 112850D0000
Page 27: ...APPENDIX I Wiring Diagram and Schedule Single Output...
Page 28: ......
Page 36: ......
Page 40: ......
Page 41: ...APPENDIX II Wiring Diagram and Schedule Dual Output...
Page 42: ......
Page 50: ......
Page 54: ......
Page 55: ...APPENDIX III Declaration of Conformity...
Page 56: ......
