TP-6487 8/0724 Section 4 Accessories
4.1.2 Accessory Board Time Delay
Adjustment Switches
The 10-position rotary switches allow adjustment of the
time delays shown in Figure 4-2. Use a small
screwdriver or other small tool to increase or decrease
the time delays within the range shown in the table. The
rotary switch positions range from 1 to 10, with
position 10 labeled 0 (zero).
The factory settings are the same as the controller time
delays without the optional accessory board.
4.1.3 Accessory Board DIP Switches
DIP switches on the optional accessory board control
the exercise, remote test, and load control functions.
The DIP switch location is shown in Figure 4-1. The DIP
switch functions are summarized in Figure 4-3. Check
the DIP switch settings and adjust if necessary for the
application.
1 Week/2 Week Exercise, Switch 1. This switch
controls the time interval for exercise runs that are set by
pressing the Exercise button on the ATS controller. If the
setting is changed after the exerciser has been set, the
new schedule becomes effective after the next exercise.
Switch 2. This switch is not used.
Maintained/Momentary Test, Switch 3. Set this
switch for a maintained or momentary remote test
(start/stop) switch, as follows:
D ON (maintained) position: close a remote test switch
or contact to start and run the generator set. Open the
remote contact to end the test and signal the
generator set to stop.
D OFF (momentary) position: hold the remote test
switch closed for 1 second and release to start a test.
The remote switch must be held closed for at least 1
second. Operate the test switch again to stop the test
and signal the generator set to stop.
Note: The generator set continues to run during the
engine cooldown time period after receiving the
remote stop signal. See Figure 4-2 for time
delays.
Switch 4. This switch is not used.
Alarm Enable, Switch 5. Enables or disables the alarm
horn on the accessory board. If the alarm is disabled,
the horn will not sound.
Install the enclosure cover before energizing the
transfer switch.
Factory Setting Adjustment
Time Delay Switch
Setting Switch Position Range Increment
Engine Cooldown SW1 5 minutes 5 1--10 minutes 1 minute
Engine Start SW2 3 seconds 3 1--10 seconds 1 second
Transfer from Normal to Standby SW3 3 seconds 3 1--10 seconds 1 second
Retransfer from Standby to Normal SW4 6 minutes 2 3--30 minutes 3 minutes
Exercise Run Time SW5 20 minutes 4 5--50 minutes 5 minutes
Figure 4-2 Accessory Time Delay Adjustment Switches
Switch Off (Open) On (Closed) Notes
1 2 week exercise 1 week 2 weeks For the exercise button on the controller’s user interface.
2 — — — Not used.
3 Maintained test Momentary Maintained For an optional remote test (start/stop) switch.
4 — — — Not used.
5 Alarm enable Alarm Disabled Alarm Enabled
For the alarm horn on the accessory board
(inside the ATS enclosure).
Figure 4-3 Accessory Board DIP Switches
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