Emerson 300 Engine Starting Contacts, Auxiliary Circuits, Connections to Controller, Installation

INSTALLATION

Engine Starting Contacts

Customer connections for engine control contact and TS auxiliary contacts connections are located on terminal block TB which is mounted on the front lower left of the transfer switch. Refer to wiring diagram provided with the Series 300 ATS and connect the engine start wires to the appropriate terminals.

See Figure 1–1 and Table A.

(continued)

left side of

transfer switch

Table A. Engine start

connections.

When normal	Terminals
	on transfer
source fails
	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 TB as shown on the wiring diagram provided with this Automatic Transfer Switch. Make the necessary auxiliary connections by referring

COMMON

FEATURE 7

closes to start

FEATURE 8

opens to start

COMMON

FEATURE 14B

closed on emergency

FEATURE 14A

closed on normal

COMMON

FEATURE 14BA

closed on emergency

FEATURE 14AA

closed on normal

Engine Starting

Signals

5 amps, 32 V DC

5 amps resistive 28 V DC

or 120 V AC max.

TS Auxiliary Contacts Feature 14A & 14B

10 amps, 32 V DC

10 amps 250 V AC

general purpose

Optional

TS Auxiliary Contacts

Feature 14AA & 14BA

10 amps, 32 V DC

10 amps 250 V AC

general purpose

to Section 5, Control Features.

terminal block for engine start and

auxiliary circuit connections

Connections to Controller

for other Control FeaturesFigure 1-1. Engine start and auxiliary circuit terminal block TB located on the transfer switch.

(located on bottom of Controller)

Load Disconnect	Programmable
Feature	Engine Exerciser
Connections	connection,
(see Wiring Diagram	if provided
& refer to page 5–4	(refer to

for DIP switch settings) page 5–3)

Remote Control Features Connections
(refer to the Wiring Diagram &
page 5–4 for DIP switch settings)
Each control contact must be suitable	for factory
for a 5 V DC low energy circuit.	use only

Figure 1-2. Input / output label on the Controller showing possible connections to the lower terminal block. 1---2