Kohler APM402, Operation

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* Function requires optional input sensors or kits or is engine ECM dependent on some generator set models.
† ECM inputs are engine manufacturer dependent.
‡ The Common Fault Shutdown includes the items marked X‡ in the Shutdown Function column.
Description Display Message
Warning
Function
Shutdown
Function
Status/
Notice
Relay
Output
General Functions
Alarm horn silenced (Alarm Silence LED only) X
Alarm silence, auto only (NFPA 110) or always AlrmSilence: Auto Only or
AlrmSilence: Always
S No
Aux. inputs 0- 5 VDC, 1 analog
(2 additional inputs available with I/O module option) Aux Input Warning
X X
Aux. inputs 0- 5 VDC, 1 analog
(2 additional inputs available with I/O module option) Aux Input Shutdwn
X X
Auxiliary inputs, up to 3 digital
(2 additional inputs available with I/O module option) Aux Input Warning
X X
Auxiliary inputs, up to 3 digital
(2 additional inputs available with I/O module option) Aux Input Shutdwn
X X
Backup parameters loaded Backup Pars Status S No
Battery charger 1 communication loss Bat1CommLoss X
Battery charger 2 communication loss Bat2CommLoss X
Battery charger fault * (* does not apply to charger
GM87448) Batt Chg Flt
X X
Battery charger identity conflict BatIdErr X
Battery charger parameter mismatch Param Mismatch X
Battery Fault Battery Flt X
Chicago code active Chicago Code Active N X
Common fault (includes
‡
) Common Fault Shutdwn X N X
Common warning fault Common Warng X N X
Default parameters loaded Default Pars Warning X X
Emergency stop Emerg Stop Shutdwn
X‡
X
Enclosure temperature: high shutdown Enclsr Temp: High Shutdwn X X
Engine cooldown (delay) active Eng Cooldown Notice N X
Engine started Engine Start Status S X
Engine stopped Engine Stop Status S X
EPS supplying load Emerg Pwr On Notice N X
File system error (controller fault) File Error Shutdwn X X
Generator running Gen Running Notice N X
Input/output (module option board) communication
loss OB1 Com Loss
X X
Internal failure Intern Error Shutdwn X X
Metering communication loss MeterCommLos Shutdwn X X
NFPA 110 alarm active NFPA Alarm Notice N X
Not in auto (master switch) Not In Auto Warning X X
Remote start Remote Start Status S X
System ready System Ready Status S X
System timer failed Timer Error Notice N X
Generator Functions
AC sensing loss AC Sens Loss Warning X X
AC sensing loss AC Sens Loss Shutdwn X X
Alternator protection Alt Protect Shutdwn X X
Ground fault input * Ground Fault Warning X X
kW overload Total Power High Shutdwn X X
Locked rotor (failed to crank) Locked Rotor Shutdwn X X
Overfrequency Freq High Shutdwn X X
Overvoltage (each phase) Volts xx- xx High Shutdwn X X
Underfrequency Frequency Low Shutdwn X X
Undervoltage (each phase) Volts xx- xx Low Shutdwn X X
(Voltage) regulator communication loss RegCommLoss Shutdwn X X