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INSTALLATION (continued)
1-- 2
Controller Ground
A grounding wire must be connected to the controller’s
lower left mounting stud. Because the controller is
mounted on the enclosure door, a conductive strap must
be used between the enclosure and the door. This
connection provides proper grounding which does not
rely upon the door hinges.
Engine Starting Contacts
Customer connections for eng ine control contact and TS
auxiliar y contac ts conn ec tions are loc ated on ter m in al
bloc k TB which is m ounted on the front o f the transfer
switch. Refer t o wiring diagram provided with t he Series
300 ATS a nd connect the engine s tart w ires to the
appropr iate terminal s. See Figure 1–1 and Table A.
Table A. Engine start connections.
When no rmal
source fails
Ter mi na ls o n
transfer switch
contact closes TB1 and TB2
contact opens TB1 and TB3
Auxiliary Circuits
Connect auxiliary circuit wires to appropriate terminals
on transfer switch terminal block T B a s shown on the
wiring diagram provided with this Series 300 Automatic
Transfer Switch. Make the necessary auxiliary connec-
tions by referring to Section 5, Control Features.
Harnesses
The transfer switch is connected to the left side of the
controller by a plug–in harness (two plugs).
TB Terminal Block
(field connections)
accepts wire range
22–12 AWG
Engine Starting
Signals
5amps,32VDC
5ampsresistive28VDC
or 120 V AC max.
TS Auxiliary Contacts
Feature 14A & 14B
10 amps, 32 V DC
10 amps 250V AC
general purpose
FEATURE 7
closes to start
FEATURE 8
opens to start
Figure 1-1. Connections to engine starting contact
terminal b lock located on the Transfer Switch.
Connections to Controller for other Control Features (located on bottom of Controller):
for factory
use only
Remote Control Features Connections
(refer to the Wiring Diagram &
page 5–4 for DIP switch settings)
Each control contact must be suitable
for a 5 V DC low energy c ircuit.
Programmable
Engine Exerciser
connection,
if provided
(refer to
page 5–2)
Load Disconnect
Feature
Connections
(see Wiring Diagram
& refer to page 5–4
for DIP switch settings)
Figure 1-2. Input / output label on the Controller showing possible connections to the lower terminal block.