The 3.3 MLD is a generator-set controller. It is used on generator sets from Cummins/Onan, including the DFEJ and DFEK.
Also fitted to: Cummins/Onan QSK60 Engine with the PowerCommand® 3.3 or 3.3MLD.
| Code | Meaning | Cause | Remedy |
|---|---|---|---|
| 1117 | ECM POWER LOST — Warning | Battery voltage supply to the engine control module was lost. "Keyswitch" to the ECM was NOT removed for 30 seconds before removing battery power to the ECM (removing battery cable). | To reset: 1. Press the Stop button, then press the Emergency Stop button and wait for 30 seconds. 2. Re-set the Emergency Stop and select an operating mode (manual or remote). |
| 1122 | Delayed Rated To Idle Transition — active when the generator set transitions from rated to idle if the "Rated to Idle Transition Delay" is greater than zero | "Rated to Idle Transition Delay" is greater than zero | This event/fault code can be mapped to a configurable customer output relay in order to send external notification via the relay on the base board to users so that proper action can be taken in the time given before the generator set transitions to idle; this fault can be disabled by setting the "Rated to Idle Transition Delay" to 0 seconds; to access the setup menu through the Operator Panel, go to Setup > Genset Setup > Rated to Idle Delay and set appropriately |
| 1123 | SHUTDOWN AFTER BS — Shutdown | A shutdown fault occurred while the Battle Short mode was enabled. | |
| 1123 | Shutdown After Battle Short | ||
| 1124 | Delayed Shutdown — provides advance warning of an impending generator set shutdown to loads which cannot handle sudden losses of power | Activated as a result of another non-critical shutdown fault | Troubleshoot the other non-critical shutdown fault(s) that is(are) causing the generator set to shutdown; the base board will send a signal to critical loads and will wait for the amount of time in the "Delayed Shutdown Time" parameter before shutting down the generator set; go to Setup > Genset Setup > Delayed shutdown delay from the operator panel and set appropriately |
| 1131 | BATTLE SHORT ACTIVE — Warning | The control is in Battle Short mode – used to bypass several fault shutdowns for generator set operation during emergencies. | |
| 1131 | Battle Short Active | ||
| 1131 | Battle Short Active — Battle Short has been enabled | The Battle Short parameter is Enabled; one of the configurable inputs on the base board is configured for Battle Short; the configurable input configured for Battle Short becomes Active | Disable Battle Short |
| 1132 | Controlled Shutdown — a fault set to Shutdown with Cooldown is active and has put the generator set in a controlled shutdown | Activated by another active event/fault that is set to "Shutdown with Cooldown" | Troubleshoot the other shutdown fault(s) that are causing the generator set to shutdown; go to Setup > Genset Setup > Ctrld Shutdown Advance from the Operator Panel in order to appropriately set the Controlled Shutdown Advanced Notice Delay |
| 121 | SPEED SIGNAL LOST — Shutdown | No magnetic pickup pulses were sensed for a Loss of Speed delay. If a magnetic pickup is disabled, this fault is not activated. | |
| 121 | Speed Signal Lost (Loss of Speed Sense) | ||
| 1219 | Utility CB Tripped — the Utility CB has tripped | Overload, short circuit, or ground fault | Check the load of the application, load cables, and the ground fault relay if available; repair if necessary |
| 1221 | Fail to disconnect — Utility CB have failed to open; active if the "Fail To Disconnect Enable" parameter is set to enable, event/fault code 1221 is mapped to a configurable output, and event/fault code 1453 and event/fault code 2397 are active | Event/fault code 1453 and event/fault code 2397 are active | Troubleshoot event/fault code 1453 and event/fault code 2397 to resolve this issue; to disable event/fault code 1221 go to Setup > Paralleling Setup > Power Transfer Control > Fail to Disc En on the display and set the "Fail To Disconnect Enable" parameter to Disable, then determine which configurable output is set to activate when event/fault code 1221 is active and go to Setup > Configurable I/O on the display and remove the mapping of event/fault code 1221 to that output |
| 1225 | Low Genset Voltage | ||
| 1226 | Genset Frequency Error — in Power Transfer Control (PTC) operation, active if the "Genset Frequency Sensor Enable" parameter is enabled and the genset frequency exceeds the "Genset Frequency Upper Drop-Out Threshold", or is below the "Genset Frequency Lower Drop-Out Threshold", or is Out of Range Low, for the "Genset Frequency Drop-Out Delay" | Genset frequency drop-out thresholds are incorrectly set | Drop-out thresholds are dependent on the following parameters: Genset Center Frequency, Genset Frequency Pick-Up Bandwidth, Genset Frequency Drop-Out Bandwidth; to modify the preceding parameters, on the display go to Setup > Paralleling Setup > Power Transfer Control > Center Frequency or Pick-Up BW or Drop-out BW or Drop-Out Delay and set appropriately; refer to the PTC section for setup information and instructions |
| 1243 | Engine Derated — active if the engine has gone into a derate mode to protect itself from a shutdown, and if there are no other active derate events on the PCC | A derate condition has been initiated by the engine ECM | Determine the fault(s) that caused the engine to derate by checking the operator panel or using InPower or InSite to connect to the ECM; troubleshoot the event/fault(s) and resolve the issue(s) (reference the Engine Service Manual); after the issue is resolved, press the Reset button on the genset control to allow the genset to return to a normal mode of operation; if the issue is not resolved when the Reset button is pressed, the engine will stay in derated mode |
| 1244 | Engine Normal Shutdown — a normal shutdown request has been received by the engine and no active shutdown with cooldown fault exists on the PCC (LBNG) | The generator set is going through a normal shutdown and there are no active shutdown fault(s) for at least 2 seconds | |
| 1245 | CAN Engine Shutdown — The PCC received a shutdown message from the ECM. | ECM/Engine Fault | Troubleshoot Engine Fault Codes. |
| 1245 | Engine Shutdown Fault — engine shutdown fault has occurred in the engine ECM, and no other active shutdown faults exist on the PCC | Activated by another active shutdown fault in the ECM | Connect to the Engine ECM with InPower or Insite to determine the actual shutdown fault that is generating event/fault code 1245; then troubleshoot the shutdown fault(s) (reference the Engine Service Manual) |
| 1246 | CAN Unknown Engine Fault — The PCC received an unknown message from the ECM. | ECM/Engine Fault | Troubleshoot Engine Fault Codes. |
| 1246 | GENERIC ENGINE FAULT — Warning | Engine control fault code not recognized by the PowerCommand® 2.3 control. | |
| 1246 | Unknown Engine Fault — an unrecognized engine fault has been received over the datalink | The generator set control received an unknown event/fault code from ECM | Connect directly to the Engine ECM with InPower or InSite to determine the actual warning or shutdown fault |
| 1247 | CAN Engine Unannounced Fault — The PCC received an unknown message from the ECM. | ECM/Engine Fault | Troubleshoot Engine Fault Codes. |
| 1248 | CAN Engine Warning Fault — The PCC received an unknown message from the ECM. | ECM/Engine Fault | Troubleshoot Engine Fault Codes. |
| 1311 | CONFIGURABLE INPUT 1 — Configurable | The nature of the fault is an optional customer selection. Example inputs: Low Fuel Day Tank, Water In Fuel, Ground Fault, etc. | Each of the fault functions can be programmed (using the InPower service tool or by accessing the Setup menu), as follows: 1. Event, Warning, or Shutdown level if Function Select = Fault Input. 2. Change the display name using up to 32 characters. |
| 1311 and 1312 | Customer Input #1 and #2 (Warning or Shutdown) | ||
| 1312 | CONFIGURABLE INPUT 2 — Configurable | The nature of the fault is an optional customer selection. Example inputs: Low Fuel Day Tank, Water In Fuel, Ground Fault, etc. | Each of the fault functions can be programmed (using the InPower service tool or by accessing the Setup menu), as follows: 1. Event, Warning, or Shutdown level if Function Select = Fault Input. 2. Change the display name using up to 32 characters. |
| 1312 | Config Input #2 Fault | ||
| 1317 | CONFIGURABLE INPUT 3 — Configurable | The nature of the fault is an optional customer selection. Example inputs: Low Fuel Day Tank, Water In Fuel, Ground Fault, etc. | Each of the fault functions can be programmed (using the InPower service tool or by accessing the Setup menu), as follows: 1. Event, Warning, or Shutdown level if Function Select = Fault Input. 2. Change the display name using up to 32 characters. |
| 1317 | Low Coolant Level (Warning or Shutdown) | ||
| 1318 | CONFIGURABLE INPUT 4 — Configurable | The nature of the fault is an optional generator set input. Example inputs: Low Fuel Day Tank, Water In Fuel, Ground Fault, etc. | Each of the fault functions can be programmed (using the InPower service tool or by accessing the Setup menu), as follows: 1. Event, Warning, or Shutdown level if Function Select = Fault Input. 2. Change the display name using up to 32 characters. |
| 1318 | Low Fuel (Warning or Shutdown) | ||
| 1322 | KW Setpoint OOR Hi | ||
| 1323 | KW Setpoint OOR Lo | ||
| 1324 | KVAR Setpoint OOR Hi | ||
| 1325 | KVAR Setpoint OOR Lo | ||
| 1328 | Genset CB Tripped | ||
| 135 | OIL PRESS SENSOR OOR HIGH — Warning | The oil pressure sensor output is out of range (OOR), high. | |
| 141 | OIL PRESS SENSOR OOR LOW — Warning | The oil pressure sensor output is out of range (OOR), low. | |
| 1416 | FAIL TO SHUTDOWN — Warning | A shutdown fault is active, but is being bypassed by Battle Short. The generator set continues to run after receiving a shutdown command from the controller. The Battle Short feature is enabled (this is used to bypass several critical fault shutdowns therefore allowing generator set operation during emergencies). | |
| 1416 | Fail To Shutdown | ||
| 1416 | Fail to Shutdown | ||
| 1417 | FAILURE TO POWER DOWN — Shutdown | The control is powered up after attempting to go to sleep. | |
| 1417 | Power Down Failure | ||
| 143 | PRE-LOW OIL PRESSURE — Warning | The engine oil pressure is approaching an unacceptable level. | Indicates engine oil pressure has dropped below the warning trip point. If the generator is powering critical loads and cannot be shut down, wait until the next shutdown period and then follow the code 415 procedure. |
| 1433 | LOCAL EMERGENCY STOP — Shutdown | A Local Emergency Stop has been activated. | Emergency Stop shutdown status can be reset only at the local control panel. After locating and correcting problem, reset the local/remote Emergency Stop button as follows: 1. De-activate (disable) the Emergency Stop button. 2. Press the Stop button. 3. Select the desired operating mode (manual or remote). |
| 1433 | Local E-Stop | ||
| 1433 | Local Emergency Stop | ||
| 1434 | REMOTE EMERGENCY STOP — Shutdown | A Remote Emergency Stop has been activated. | Emergency Stop shutdown status can be reset only at the local control panel. After locating and correcting problem, reset the local/remote Emergency Stop button as follows: 1. De-activate (disable) the Emergency Stop button. 2. Press the Stop button. 3. Select the desired operating mode (manual or remote). |
| 1434 | Remote E-Stop | ||
| 1434 | Remote Emergency Stop | ||
| 1435 | LOW COOLANT TEMP — Warning | The engine coolant temperature is below the adjusted setpoint. This may indicate that the coolant heater is not operating or is not circulating coolant. | If the engine can be stopped, allow the engine to cool down completely before proceeding with the following checks: 1. The coolant heater is not connected to a power supply. Check for a blown fuse or disconnected heater cable, and correct it as required. 2. Look for possible coolant leaks and repair as required. Check for low coolant level and replenish, if required. |
| 1435 | Low Coolant Temperature | ||
| 1438 | FAIL TO CRANK — Shutdown | The generator set has failed to sense rotation for two start attempts. This indicates a possible fault with the control, speed sensing, or the starting system. | See code 441 for corrective action. |
| 1438 | Fail to Crank (Shutdown) | ||
| 1439 | Low Day Tank Fuel | ||
| 144 | COOLANT SENSOR OOR LOW — Warning | The coolant temperature sensor output is out of range (OOR), low. | |
| 1441 | Low Fuel Level | ||
| 1442 | WEAK BATTERY — Warning | The generator set battery voltage is below battery thresholds during cranking. During cranking, the battery voltage is at, or below, the weak battery warning trip point for a time greater than, or equal to, the weak battery set time. | See code 441 for corrective action. |
| 1444 | KW Overload |
Fault codes and symptom→remedy steps extracted from this controller’s service/owner documentation; verify against the official manual before servicing. Aggregated from the service documentation of generator sets built on this controller.