Emerson Series 300 H-design User Manual download pdf (Page 16)

CONTROL FEATURES (continued)

5 --- 2

Optional Accessory 11BG – SOURCE AVAILABILITY SIGNAL

& PROGRAMMABLE ENGINE EXERCISER MODULE

2–line

display

3 buttons

connections

for source

availability

signal contacts

Figure 5–2. Accessory 11BG module (mounted behind operator interface and connected to the controller)

includes source availability signal contacts and a programmable engine exerciser.

Source Availability Signal Contacts

ThemoduleprovidesoneFormCcontacteachforthe

normal and emergency sources signal the acceptability of

the source as sensed by the controller. The signal contacts

operate in conjunction with the Source Accepted lights on

the operator interface. Field wiring terminals are

provided as shown i n Figure 5–3 and the wiring diagram.

Contact ratings:

2 amps @ 30 Vdc, 0.5 amp. @ 125 Vac resistive

SOURCE

AVAILABILITY SIGNALS

2 AMPS @ 30 VDC, resistive

0.5 AMP @ 125 VAC, resistive

contacts shown de–energized

Figure 5–3. Source availability signal contacts.

ProgrammableEngineExerciser

Themoduleincludesaprogrammableengineexerciser

that provides for weekly or biweekly operation. This

optional exercise timer may have to be turned on

(enabled) by setting the S1 DIP switch actuator 7 to off,

and S2 DIP switch actuator 5 to off. A backup battery

the controller (see page 4–2 and page 5–3) must be turned

on to maintain the settings and to allow programmingwith

the normal and emergency power turned off (page 5–1).

Theprogrammableengineexerciserincorporatesa7day

or 14 day time base. Proper controller settings must be

made to determine whether or not the test will be done

with or without load transfer (S1 DIP switch actuator 8).

Seenextpageforinstructionsonsettingthetimer.

DIP Switch Settings in the Controller

(see page 4–2)

FUNCTION

S1 DIP

SWITCH

S2 DIP

SWITCH

Opt. Timer

Enabled

Actuator

7off

Actuator

5off

Opt. Timer

Disabled

Actuator

7off

Actuator

5on

Exercise

without

Load

Actuator

8off

Exercise

with

Load

Actuator

8on

Shaded DIP switches are standard factory settings.

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Emerson Series 300 H-design User Manual Page 16

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