Installation, Engine Starting Contacts | Emerson Series 300 instruction

INSTALLATION (continued)

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.

left side of

transfer switch

Table A. Engine start

connections.

	When normal	Terminals
	When normal	on transfer
	source fails	on transfer
	source fails	switch
		switch
	contact closes	TB1 and TB2
	contact opens	TB1 and TB3

Auxiliary Circuits

COMMON

FEATURE 7

closes to start

FEATURE 8

opens to start

COMMON

FEATURE 14B

closed on emergency

FEATURE 14A

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

Connect auxiliary circuit wires to appropriate terminals on transfer switch terminal block TB as shown on the wiring diagram provided with this Series 300 Automatic Transfer Switch. Make the neces- sary auxiliary connections by refer- ring to Section 5, Control Features.

Optional

COMMON TS Auxiliary Contacts

Feature 14AA & 14BA

FEATURE 14BA	10 amps, 32 V DC
closed on emergency	10 amps 250 V AC
FEATURE 14AA	general purpose
closed on normal

terminal block for engine start and

auxiliary circuit connections

Connections to Controller

for other Control Features	Figure 1-1. Engine start and auxiliary circuit
(located on bottom of Controller)	terminal block TB located on the transfer switch.

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.

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