DECS-100 Installation
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Figure 4-10. Cross-Current (Reactive Differential) Connections
PRELIMINARY SETUP
Before starting the generator and DECS-100 for the first time, proceed as follows.
1.
Tag and disconnect all wiring to the DECS-100. Be sure to insulate the wire terminals to prevent a
short circuit.
2.
Start the prime mover and perform all engine governor adjustments.
3.
After all initial governor adjustments have been made, shut down the prime mover.
4.
Connect only the DECS-100 power input terminals to an auxiliary power source in the specified
power input range.
5.
Perform all initial DECS-100 settings by connecting a PC or handheld operating with BESTCOMS to
the rear communication port of the DECS-100 and save all new settings.
6.
Remove power from the DECS-100.
7.
Connect the rest of the DECS-100 leads using the tagged identification.
8.
Start the prime mover/generator and perform the final adjustments at rated speed and load.
9.
After the initial startup, the DECS-100 should not require any further adjustments unless there is a
change in the system.
ADJUSTMENTS
All adjustments are made using external switching, or with BESTCOMS software via the rear panel
communication port. See Sections 5 and 6 for more information regarding setting adjustments with
BESTCOMS software.
WARNING!
Lethal voltage is present at the rear panel when the unit is energized. Rear
panel connections should be made only when the unit is de-energized.