s Engine Engine

• This generator has absorbed more than 25% reactive power (magnetic excitation current) for 20 seconds. LossOfField
  Cause: Generator voltage on this generator is not calibrated correctly. Generator voltage on other generator is not calibrated correctly. Bus voltage on this generator is not calibrated correctly. Bus voltage on the other generator is not calibrated correctly.
• This generator does not know if the metering is connected or the orientation of the connection. This means that the generators can’t share load accurately until this information is known. MeterUnknown
  Cause: System commissioning and startup not yet complete. See the APM instructions.
• The two generators that are intended to be paralleled have incompatible model numbers. CfgModelNum
  Cause: Incorrect configuration of one of the generators. Different generator types. The paralleled generator sets must be the same kW model. (i.e. two 14 kW or two 20 kWor 26 kW models).
• The system voltage of the two generators intended to be paralleled is not the same. CfgSysVolt
  Cause: One of the two generators is incorrectly configured. Intermittent connections on RBUS network wiring.
• The primary controller has lost communication with the secondary controller. (A secondary controller was detected, then communication was lost.) LossOfComm2
  Cause: RBUS disconnected, secondary controller battery disconnected, updating firmware in secondary controller, or intermittent RBUS connections.
• The power metering on this controller gives a signal that is not consistent with the system configuration. Reversing the power direction does not resolve the problem. ErraticSig
  Cause: Bad wiring to the CT. Too much tension on wires from the CT to the controller.
• The generator shuts down due to a main power overload. Main Power Overload Shutdown
  Fix: Check the circuit breaker and ensure it is not tripped. If necessary, replace the circuit breaker.
• The generator has verified that the metering is connected correctly and that the direction is consistent with expected power direction. MeteringOk
  Cause: Status message indicates that the CT is connected to the generator correctly.
• The generator has been attempting to synchronize for over 2 minutes without success. SyncFailure
  Cause: Generator is hunting. Advanced speed control settings need adjustment. Load is changing frequently to disturb the online generator.
• The generator has applied load (using the other generator) and has observed no current on the power sensing inputs. NoCurrent
  Cause: The CT is not connected to the controller. The output leads from the generator do not go through the CT in the correct direction. See the APM instructions.
• The bus is measured to be live when no generators are connected to it (both contactors open). BusLiveDead
  Cause: Bus metering V9A and V9B connections to V9 of paralleling protection harness are connected incorrectly.
• The bus is measured to be dead when one of the generators is supposed to be supplying voltage to the bus (closed contactor). BusDeadLive
  Cause: Bus metering V9A and V9B connections to V9 of paralleling protection harness are connected incorrectly.
• The Automatic Paralleling Module has stopped communicating on RBUS. (An APM was detected on the RBUS network but is no longer communicating). LossOfComAPM
  Cause: APM is unplugged. Primary controller is powered down. Check the battery connections. See previous page for more information. Intermittent connections on RBUS network wiring.
• Successful auto-discovery of APM connections. ContactorOk
  Cause: Auto-discovery was activated by placing other generator in OFF and this generator in RUN.
• Short circuits can cause bodily injury and/or equipment damage.
  Fix: Disconnect the battery before generator set installation or maintenance. Remove all jewelry before servicing the equipment. Use tools with insulated handles. Remove the negative (–) lead first when disconnecting the battery. Reconnect the negative (–) lead last when reconnecting the battery. Never connect the negative (–) battery cable to the positive (+) connection terminal of the starter solenoid. Do not test the battery condition by shorting the terminals together.

Compiled from service & troubleshooting documentation across every generator set that uses the s.