TRENDnet Series 300 - Manual (Page 13)

SECTION 5 CONTROL FEATURES – ENGINE EXERCISERS
5--1
These timers periodically exercise the emergency engine-generator plant. They can be set to exercise with or without
load transfer, or they can be completely disabled. The engine-generator should be exercised under load once a week for a
minimum time period of 20 minutes, or follow the recommendations of the engine-generator set manufacturer. Refer to
page 4–2 for location of DIP switches, battery (provided), and jumper block in the controller.
BUILT–IN ENGINE EXERCISER
The engine exerciser included in ASCO Series 300
Automatic Transfer Switches provides a once a week
20–minute exercise period. It occurs immediately when
the SET ENGINE EXERCISER push button is pressed
(and held for at least 5 seconds), and then at the same time
weekly thereafter. A 9 volt alkaline battery (DuracellR
MN1604, EverreadyR 522, or PanasonicR 6AM6) is
furnished and installed in the controller to maintain the
setting. The battery jumper block must be shifted to the
ON position. See Figure 4–2 on page 4–2.
Fill in day and time set. Week Day ______ Time _______.
DIP Switch Settings
FUNCTION
S1 DIP
SWITCH
S2 DIP
SWITCH
Std. Timer
Enabled
Actuator
7 on
7
Actuator
5 on
5
Std. 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.
status light
If Exerciser with Load is set,
transfers load to Emergency.
Press until light FLASHES
If Exercise with Load is set,
retransfers load to Normal,
then stops generator after
5 min. cooldown.
Press to cancel an
active exercise period
(stops generator).
Press and hold for 5 sec. or until status
light blinks rapidly to set exercise period
immediately and every week hereafter
(generator starts).
Figure 5-1. Operator panel pushbuttons and light.
Select below either Exercise without Load or Exercise with Load according to the setting of DIP switch S1, actuator 8. The
load transfers from the Normal source to Emergency source (generator) and back again if Exercise with Load is selected.
Exercise without Load, DIP Switch S1, Actuator 8 off
8
How to Set Built–In Timer
Step Function Explanation
Push Button Status Light
1
SET ENGINE
EXERCISER
hold 5 sec.
blinks rapidly
FfFfFf
set exercise period
Exercise the generator now and
every week at this time hereafter.
2 release
blinks slowly
FffFff
exercise period now active Generator starts and runs.
3
press BYPASS
TIME DELAY
F
stays on cancel active exercise period Generator stops.
4 —
F
stays on generator off Exerciser enabled; repeats every 7 days.
Exercise with Load, DIP Switch S1, Actuator 8 on
8
How to Set Built–In Timer
Step Function Explanation
Push Button Status Light
1
SET ENGINE
EXERCISER
hold 5 sec.
blinks rapidly
FfFfFf
set exercise period
Exercise the generator now and
every week at this time hereafter.
2 release
blinks slowly
FffFff
exercise period now active
Generator starts and runs;
the load transfers to Emergency.
3
press BYPASS
TIME DELAY
blinks slowly
FffFff
cancel active exercise period
The load retransfers to Normal; then
generator runs for 5 minute cooldown
( light blinks slowly during cooldown ).
4 —
F
stays on generator off Exerciser enabled; repeats every 7 days.
NOTE: Every time SET ENGINE EXERCISER push button is pressed (held 5 seconds) the exercise period is changed.