CONTROL FEATURES (continued)
5 --- 2
Optional Accessory 11BG – SOURCE AVAILABILITY SIGNAL& PROGRAMMABLE ENGINE EXERCISERMODULE
2–line
display
3 buttons
connections
for source
availability
signal contacts
Figure 5–2. Accessory 11BG module (mounted behind operatorinterface and connected to the controller)
includes source availabilitysignal contacts and a programmable engine exerciser.
Source Availability Signal Contacts
ThemoduleprovidesoneFormCcontacteachforthe
normal and emergency sou rces signal the acceptabili ty
of the source as sensed by the controller. The signal
contacts operate in conjunctionwith the Source
Accepted lightson the operator interface. Field wiring
terminalsare provided as shown in Figure 5–3 and the
wiring diagram.
Contact ratings:
2 amps @ 30 Vdc, 0.5 amp. @ 125 Vacresistive
SOURCE
AVAILABILITYSIGNALS
2AM PS @ 30 VDC, resistive
0.5AMP @ 125 VAC, resistive
contactsshown de–energized
Figure 5–3. Source availabilitysignal contacts.
ProgrammableEngineExerciser
Themoduleincludesaprogrammableengineexerciser
that provides for weekly or biweekly operation. This
optional exercise timer mayhave to be turned on
(enabled) by settingthe S1 DIP switch actuator 7 to off,
and S2 DIP switch actuator5 to off. A backup battery in
the controller (see page 4–2 and page 5–3) must be
turned on to maintain the settingsand to allow
programming with the normal and emergency power
turned off (page 5–1).
Theprogrammableengineexerciserincorporatesa7
day or 14 day time base. Propercontroller settings must
be made to determinewhether or not the test will be
done with or without load transfer (S1 DIP switch
actuator 8).
Seenextpageforinstructionsonsettingthetimer.
DIP Switch Settings in the Con troller
(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 switchesare standard factory settings.