Switches And Controls - Kohler APM402 Operation

1.2.1

Switches and Controls

Note:
US/Metric Display is selectable in the Generator Set System Menu. See the section titled: Digital Display-Generator Set System
Menu.
Alarm Horn. The alarm horn alerts the operator or other attendants that a shutdown or warning condition exists.
Alarm (Horn) Silence. The alarm silence/lamp test switch silences the alarm horn at the operator's discretion. Press the master
control switch AUTO button before pressing the alarm silence/lamp test button. The alarm horn cannot be silenced unless the
master control switch AUTO button is pressed.
Note:
Additional alarm silencing options are shown in the section titled: Digital Display-Generator Set System Menu.
Restore alarm horn switches at all locations including those on remote annunciator kits after correcting the fault shutdown to
avoid reactivating the alarm horn. See the section titled: Controller Resetting for resetting the controller.
Emergency Stop. The operator-activated pushbutton immediately shuts down the generator set in emergency situations. Reset
the emergency stop switch after shutdown by pulling the emergency stop switch outward. Use the emergency stop switch for
emergency shutdowns only. Use the master control switch OFF/RESET button for normal shutdowns.
Generator Set Master Control Switches (OFF/RESET-AUTO-RUN). These switches reset the controller fault lamps and
start/stops the generator set. Additional information in shown in the section titled: Operation.
Lamp Test. Press and hold the Alarm Silence/Lamp Test button for two seconds to test the controller indicator lamps, alarm
horn, and digital display.
Manual Speed Adjust (Engine RPM). The control allows varying the engine speed for applications using closed transition ATS.
The user can set the nominal running frequency slightly above or below the utility frequency to ensure that synchronization
occurs. Additional information is shown in the section titled: GenSet System. Available as a factory-installed option or requires
a new factory personality profile.
Pushbutton/Rotary Selector Dial. This control provides access to the menus for monitoring. Press the selector dial to activate
the digital display and to select choices shown on the display. Rotate the dial to navigate through the menus.
The pushbutton/rotary selector dial has several features and functions:

Momentarily press the dial to activate the digital display if dark.

Rotate the dial to navigate through the main menus—turn clockwise to go forward (down) and counterclockwise to go
back (up). The menus do not wrap to the beginning.

Press the dial at a given main menu to access the submenus within the selected main menu.

When in the submenu, rotate the dial to navigate through the submenu—clockwise to go forward (down) and
counterclockwise to go back (up). The menus do not wrap to the beginning.

Momentarily press the dial when in the submenu to make a user selection choice (if available) or to go back to the
respective main menu.

Press the dial for at least 3 seconds to return to the top of the main menus (Overview) regardless if you are in the main
menus or submenus.

After about 5 minutes of no user input (pushbutton/ rotary selector dial or buttons), the menu resets to the top of the
main menus and auto-paging activates for the Overview submenus.
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