14
OPM-148
REV A
DC INTERCONNECTIONS TO THE ATS
WARNING
Use a properly installed transfer switches when
isolating the generator set from utility power. Failure
to do so could result in backfeeding, which is illegal
and dangerous. Backfeeding cause serious injury or
death.
WARNING
Be sure Engine/Generator is in the OFF position before
you make any DC interconnections.
CAUTION
Never run the AC and DC wiring in the same conduit.
ASCO 185 UL SWITCH
ASCO 300 UL SWITCH
When Normal
Source Fails
Terminals On
Transfer Switch
Contact Closes
TB1 and TB2
Contact Opens
TB1 and TB3
Engine start and auxiliary circuit terminal block TB located
on 3ATS &3NTS transfer switch.
13
5060-00
60708-165
A - Customer Remote Start CONNECTIONS TERMINALS.
The
two remote start leads from the Automatic Transfer Switch are
connected to the two terminals marked GROUND & START. The
wire in terminal GROUND is Battery Negative and the wire in the
terminal labeled START is your Remote Start lead. Closing these
two leads together will signal the DSE 7310 to go into an auto-
start 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
JURXQGDQG6VWDUW
The terminal blocks are designed to
use terminal lugs on all wires and the screws should be torqued
to 9.6 in. lbs.
1RWH$Q\UHOD\FORVXUHFDQEHXVHGWRVWDUWDQGVWRSWKLV
JHQHUDWRU$VORQJDVWKHFRQWDFWVWD\VFORVHGWKHHQJLQH
JHQHUDWRUVHWZLOOFRQWLQXHWRUXQ2QFHWKHUHOD\LVRSHQHG
WKHXQLWZLOOVKXWGRZQDQGUHPDLQLQWKHVWDQGE\PRGHXQWLO
WKHUHPRWHVWDUWUHOD\LVFORVHGDJDLQ
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 prewired 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. This display can used to meet the remote annunciation
requirements of NFPA 110 standards. (
This feature meets the
annunciation requirements in applications requiring NFPA110
level one protection.)
DC Interconnections to the
Automatic Transfer Switch
*************
***** WARNING *****
*************
%HVXUH(QJLQH*HQHUDWRULVLQWKH³2))´SRVLWLRQEHIRUH
you make any DC interconnections.
*******CAUTION******
1HYHUUXQWKH$&DQG'&ZLULQJLQWKHVDPHFRQGXLW
ASCO 185 UL SWITCH
<RXU'&FRQQHFWLRQSRLQWVLQWKH$6&2$76DUH
WHUPLQDOV³´DQG³RQWKHLQWHUIDFHWHUPLQDOEORFN
ASCO 300 UL SWITCH
Your DC connection points in the ASCO 300 ATS are terminals
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located in different locations.
TB7
removable
terminal block
TB7–4, TB7–5, TB7–6
1 2 3 4 5 6 7 8 9
Figure 4. TB7 generator starting contact terminals.
Table A. Generator Start Connections
When the Utility fails
Terminals on Controller
contact closes
TB7–4 and TB7–5
contact opens
TB7–5 and TB7–6
TB7 Generator starting contact terminals