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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
- 28 -
1U1
1V1
1W1
1U3
1V3
1W3
1U4
1V4
1W4
1U2
1V2
1W2
(208V)
(400V)
(480V)
(208V)
(400V)
(480V)
(208V)
(400V)
(480V)
U2
V2
W2
1U1 1V1 1W1 1U3 1V3 1W3
1V2
1U2
1U4 1V4 1W4
1W2
PE
from Q001
A
B
C
W
U
V
480V setting
1U1 1V1 1W1 1U3 1V3 1W3
1V2
1U2
1U4 1V4 1W4
1W2
PE
from Q001
400V setting
1U1 1V1 1W1 1U3 1V3 1W3
1V2
1U2
1U4 1V4 1W4
1W2
PE
from Q001
A
B
C
208/230V setting
Transformer T006 principle drawing and setting
A
B
C
(26V)
(26V)
(26V)
5.0 OPERATING INSTRUCTIONS (continued)
5.2
COMMISSIONING
WARNING!
Before initial start-up, check the following:
1. Is the equipment damaged? If yes, do not put into service without consulting your
Tronair representative
2. Is the cabling properly installed? (Mains, output, remote control, etc. ?) Correct if
necessary
5.2.1
Tools Needed
The following tools will be needed in order to put the 28 VDC GPU into operation:
•
Multimeter
•
Rotating field meter
•
Various screwdrivers
5.2.2
Settings
There are two different types of units available. The high input voltage type unit is set to 575V
60Hz already. No further adjustment has to be made. The standard (universal) type unit is
capable of being operated at different input voltages and frequencies. It can be operated with
208V, 230V, 400V 50 or 60Hz or 480V 60Hz. Before the mains supply is switched on, this unit
type has to be adjusted correctly. Two steps have to be made for the adjustment:
Step1: Setting of the various transformer taps (has to be made for the universal type only)
The unit is equipped with two control voltage transformers (T211 and T212) and one main
transformer (T006). The wires have to be connected to the correct tap(s) in accordance with the
mains input voltage at each transformer. Each transformer has terminals for 3 to 4 different input
voltages 208V, 230V (used for T211 and T212 only), 400V and 480V. Place the phase wires
and/or jumpers according to the drawings below.
Figure 5.2.2.A
Transformer T006
Principle Drawing and Setting