User’s Manual 17
8
DST 4601 implements a fuel pump full management for the loading of the tank on genset
board from the storage tank. The pump management is inclusive of automatic working and
manual controls, accessible from the frontal panel. It must at first to force the multifunctional
display on page S.04 by selecting the STATUS mode and browsing the pages with the RIGHT
or DOWN arrows. Here it is possible to use the standard setting procedure (ENTER to begin,
▲ and ▼ to modify and ENTER to confirm) to select the fuel pump control mode.
The available modes are:
AUTO
MAN-ON (pump activated)
MAN-OFF (pump deactivated)
The second mode can be inhibited by the DST4601, relating to the fuel level (the pump cannot
be started with full tank).
9
DUE TO THE HIGH VOLTAGE CONNECTED TO THE MEASURE INPUTS, THE DEVICE
ENCLOSURE MUST BE CONNECTED TO SAFETY GROUND.
For a proper use of the device, it must be mounted in a fixed way onto a panel or cabinet.
The rear panel of the device must not be accessible without the use of tools or keys.
The device must not be removable without tools.
Safety EARTH connection must be made in a fixed way by means at least one of the
dedicated terminals.
The generator and mains voltage lines connected to the measure inputs of DST4601
Controller must have an over current protection (such as fuse). The input load of the
board is about 1Mohm. A 1A protection threshold is suitable.
The safety heart connection wire must be at least equal in section as wires used to
cable mains and generator voltage lines to the board. Wire section must be conforming
to the over current protection used.
For CAT.IV operation, the negative pole of low voltage supply (GND at JH-48) must be
connected to the SAFETY EARTH. If required operation with GND isolated from SAFETY
EARTH, please ask to S.I.C.E.S. for the allowable operation condition.
For CAT.IV operation the maximum allowable phase to neutral voltage is 300Vac (520 Vac
phase to phase). Maximum allowable input voltage toward SAFETY EARTH is 300Vac.
For CAT.III operation, the maximum allowable phase to neutral voltage is 345Vac (600 Vac
phase to phase). Maximum allowable input voltage toward SAFETY EARTH is 600Vac.
For CAT.IV operation and GCB contactor supplied by generator voltage, L1 phases must be
used for terminal JM-58 supply.
