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
The module provides one Form C contact each for the
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 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
contacts shown de–energized
Figure 5–3. Source availability signal contacts.
Programmable Engine Exerciser
The module includes a programmable engine exerciser
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 in
the controller (see page 4–2 and page 5–3) must be turned
on to maintain the settings and to allow programming with
the normal and emergency power turned off (page 5–1).
The programmable engine exerciser incorporates a 7 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).
See next page for instructions on setting the timer.
DIP Switch Settings in the Controller
(see page 4–2)
FUNCTION
S1 DIP
SWITCH
S2 DIP
SWITCH
Opt. Timer
Enabled
Actuator
7 off
7
Actuator
5 off
5
Opt. Timer
Disabled
Actuator
7 off
7
Actuator
5 on
5
Exercise
without
Load
Actuator
8 off
8
Exercise
with
Load
Actuator
8 on
8
Shaded DIP switches are standard factory settings.
