11
REV B
OPM-111
DC ELECTRICAL INTERCONNECTION
CAUTION:
Never run the AC and DC wiring on the same conduit.
NOTE:
There are various DC connectors on the engine that have nothing
connected to them. This was done intentionally, the connectors are for
END OF THE LINE TESTING and other diagnostic tests. They are not
used during normal operations and can just be ignored.
All DC connections are completed on the terminal strip just below the
engine control cabinet.
A - Customer Remote Start CONNECTIONS TERMINALS. The two
remote start leads from the Automatic Transfer Switch are connected
to the two terminals marked Remote Start & Remote Start. The wire
in terminal labeled #1 is Battery Negative/Ground and the wire in the
terminal labeled #23 is your Remote Start lead. Closing these two
leads together will signal the DSE 7310 MKII to go into an autostart
mode and start up the engine generator.
Depending on the distance, 14 to 16 gauge stranded wire should be
used. It is suggested that these wires be labeled S1 and S23.
Note: Any relay closure can be used to start and stop this generator. As
long as the contact stays closed the engine generator set will continue
to run. Once the relay is opened the unit will shut down and remain in
the standby mode until the remote start relay is closed again.
B - ESTOP- & ESTOP+. Remote Emergency Stop terminals. These
two terminals are shipped with a jumper installed. If your application
requires the installation of a Remote Emergency Stop switch, remove
the jumper and wire your switch to these terminals. This unit will not
start and run without either the jumper installed or a remote N/C switch
installed..
C - Battery Charger Failure. Battery charger failure relay input from
remote battery charger to DSE7310 controller.
D - Remote Display Panel Interface Terminals. These interface
terminals are pre-wired to allow for the connection of a remote display.
This display allows for the remote annunciation of alarms at a location
such as a nurses station or a control room.
D
C
B
A
E
MOUNTING THE AUTOMATIC TRANSFER SWITCH
See the ASCO installation manual for additional details on proper
wiring of the Automatic Transfer Switch.
Because of the many different types of service, feeder, and distribution
equipment, no specific wiring instructions can be provided. It is
recommended that only copper wire be used. In all cases it is
essential that while the load is connected to the generator, there can
be absolutely no feedback from the generator to the power line or the
power line to the generator. When properly installed, the normal A.T.S.
Control and safety systems will eliminate all paths for feedback.
To wire the automatic transfer switch into the existing wiring, first
determine which circuits will be on the emergency load circuit. If the
entire load is to be transferred, the transfer switch can be wired in
directly after the watt-hour meter and the service entrance, providing
the service entrance ampere rating is within the transfer switch’s rated
capability.
If only specific circuits are to be powered under emergency power
failure conditions, an additional distribution panel designated
“emergency distribution panel” must be installed.
All selected emergency circuits are removed from main distribution
panels and installed in the emergency distribution panel. The A.T.S. is
then installed between the main panel and the emergency distribution
panel. Suggested circuits: freezer, refrigerator, furnace, emergency
lights, sump pump, emergency outlet circuits, etc. Total running load
must not exceed generator rating.
WARNING:
A service disconnect must be installed in front of the ATS panel as
the ATS is not service entrance rated. This will allow you to test the
generator under load. Should you ever have to work on the switch,
you will be able to disconnect the power and work on the switch cold
without having the power company pull your meter.
To wire the automatic transfer switch into the existing wiring, first
determine which circuits will be on the emergency load circuit. If the
entire load is to be transferred, the transfer switch can be wired in
directly after the watt-hour meter and the service entrance, providing
the service entrance ampere rating is within the transfer switch’s rated
capability.
If only specific circuits are to be powered under emergency power
failure conditions, an additional distribution panel designated
“emergency distribution panel” must be installed.
All selected emergency circuits are removed from main distribution
panels and reinstalled in the emergency distribution panel. Suggested
circuits: freezer, refrigerator, furnace, emergency lights, sump pump,
emergency outlet circuits, etc. Total running load must not exceed
generator rating.
