ADJUSTMENTS
(continued)
4--2
NOTICE
Do not make any setting changes while the
controller is energized.
How to Chang e a Setting
1. Prevent the transfer switching devi ce from operat-
ing by disconnecting one source first, then the
other, as follows:
a. If the transfer switching device is in the Normal
position, open the emergency source circuit
breaker. Turn the engine starting control to off.
Then open the normal source circuit breaker.
b. If the transfer switching device is in the
Emerge ncy position, open the normal source
circuit breaker. Turn engine starting control to
test or run. Then open the emergency source
circuit breaker.
2. Disconnect both harness plugs from controller by
squeezing the latches. Do not pull on the wires.
3. Remove cover from the controller by releasing latch
on right side with your thumb. See Figure 4-1.
4. Locate the appropriate adjustm ent potentiom eter or
DIP switch for the setting that you want to chang e.
Refer to Table 4-1 and Table 4–2 on page 4-1 and
Figure 4-2, Figure 4–3, Figure 4–4 on page 4–2.
5. Use a small screwdriver to turn the potentiometer
clockwise to increase the time delay or counter-
clockwisetodecreaseit. SeeFigure4-3.
6. Use a ball-point pen (or similar pointed tool) to
slide the switch actuators left or right so they match
the i llustration next to the setting(left = off, right =
on). Recheck the setting. See Figure 4-4.
7. Install the cover on the controller by hooking it on
the left si de and latching the right side.
8. Reconnect both harness plugs to the controller by
aligning and pressing straight in until latches click.
Close the automatic transfer switching
equipment enclosure door and tighten the
screws before restoring power.
9. Close the enclosure door, then restore both sources:
a. If the transfer switching device is in the Normal
position first close the normal source circuit
breaker, then close the emergency source cir-
cuit breaker.
b. If the transfer switching device is in the
Emergency position, close the normal source
circuit breaker. The load will be automatically
retransferred to the normal source. Then close
the emergency source circuit breaker.
10. Turn the engine starting control to automatic.
thumb
latch
cover
hook on
left side
Figure 4-1. Controller cover latch.
9volt
alkaline
battery
battery
on/off
jumper
retransfer
to normal
time delay
transfer to
emergency
time delay
harness
plugs
S3 DIP
switch
S1 DIP
switch
S2 DIP
switch
P1
P2
J5
Figure 4-2. Location of potentiometers,
DIP switches, battery, and battery jumper.
P1 or P2
potentiometer
clockwise to
increase
counterclockwise
to decrease
Figure 4-3. Changing time delay potentiometers.
DIP
switches
SW1
SW2
SW3
actuator
onoff
(8 on each DIP switch)
Figure 4-4. Setting DIP switch actuators.
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