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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 i n conjunction with the Source
Accepted lights on the operator interface. Field wiring
terminals are provided as shown in 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
contactsshown de–energized
Figure 5–3. Source availability signal contacts.
ProgrammableEngineExerciser
Themoduleincludesaprogrammableengineexerciser
that provides for weekl y or biweekly operation. This
optional exercise timer may have to be turned on
(enab l ed) by setting the S1 DIP switch actuator 7 to o ff,
and S2 DIP switc h actuator 5 t o off. A backup battery
in
the c ontrol ler (see p age 4–2 a nd page 5–3) must b e
turn ed on to main tain the setting s and to allow
programm ing with the normal and e mergenc y power
turned of f (page 5–1).
Theprogrammableengineexerciserincorporatesa7
day 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
7
Actuator
5off
5
Opt. Timer
Disabled
Actuator
7off
7
Actuator
5on
5
Exercise
without
Load
Actuator
8off
8
Exercise
with
Load
Actuator
8on
8
Shaded DIP switches are standard factory settings.