Cutler-Hammer ATVISPE31000XSU, Instructions Manual

Page: 26 / 44

I.B. ATS-SD02
Page 20
Effective 5/98
Use a wide strap attached to an overhead crane for lift-
ing the switch. Tilt the switching device forward and slip
the strap underneath, placing it between the two draw-
out wheels on each side. Steady the sides of the switch-
ing device as the crane lifts it to ensure that it does not
slip off the strap. Lower all four wheels onto the top of
the switching device extension rails (Figure 4-7). The
front wheels on the switching device will fit into a depres-
sion at the front of the rails, and it will rest there securely.
Remove the strap. It will slide out between the switching
device and the extension rails. A molded escutcheon on
the switching device cell door is for mounting the label
for the indexing lever. This label indicates the position of
the switch. With the cell door in place attach the
escutcheon to the outside of the enclosure door.
Place the switching device in the TEST position. Peel the
backing off the label that indicates the position of the switch-
ing device and place it on the escutcheon so that the test
position indicator lines up correctly with the indexing lever.
4.7 WIRING
POWER CONDUCTORS AND CONTROL WIRING
MAY HAVE VOLTAGE PRESENT THAT CAN CAUSE
SEVERE PERSONAL INJURY OR DEATH. DE-
ENERGIZE ALL POWER OR CONTROL CIRCUIT
CONDUCTORS BEFORE BEGINNING TO PERFORM
ANY WIRING ACTIVITY TO OR WITHIN THE TRANS-
FER SWITCH EQUIPMENT.
Power sources, load conductors and control wiring
should be connected to locations as indicated in the
Customer Wiring Diagrams supplied with the transfer
switch equipment.
4.7.1 ENGINE START CONNECTION
The engine control contact connections are located on the
lower right of the intelligence portion of the ATS (Figure 3-
7). The engine control contact connections of bypass isola-
tion units are located in the rear of the enclosure (51A,
52A). NOTE: Prior to making the engine start connection to
the switch on bypass isolation units, set the engine genera-
tor controls selector switch in the OFF position to prevent an
unwanted engine start. Connect the engine start wires to
the red terminal blocks marked in 51 and 52 or 51A and
52A for bypass isolation units. A contact closes between
these terminal blocks when an engine start signal is provid-
ed by the ATS logic.
Figure 4-6 Secondary Control Block Contact Opening
Figure 4-7 Correct Placement
!
CAUTION
Figure 4-4 Drawout Stationary