Non-emergency Start

This sequence begins when all of these conditions are met:

· The PCC is in Auto mode.

· The remote start signal is active, and the start type signal is active; or the exercise signal is active, and the remote start signal is inactive.

· There are no active shutdown faults.

6.4.2.1 With Idle Warmup

The PCC runs this sequence if none of these conditions is met:

· The coolant temperature is already greater than Idle Warmup Coolant Temp.

· Genset Idle Enable is set to Disabled.

6.4.2.1.1 Multiple Steps in Parallel

In this step, the PCC begins multiple steps at the same time and does not continue until every one has finished.

Start Time Delay

The PCC waits until Start Time Delay expires.

Prelube Engine

If Prelube Function Enable is Enabled, the PCC turns on the oil-priming pump. The PCC turns off the oil-priming pump when one of these conditions is met:

· Prelube Timeout Period expires.

· The oil pressure is greater than or equal to Prelube Oil Pressure Threshold.

6.4.2.1.2 Start Engine

If Starter Owner is set to GCS (Genset Control System), the PCC turns on the starter for up to two seconds.

If the engine speed remains zero, the PCC turns off the starter, waits two seconds, and turns on the starter again.

If the engine speed remains zero two consecutive times, the PCC generates shutdown fault 1438 (Fail To Crank).

If the engine speed becomes greater than zero, this step is complete.

If Starter Owner is set to ECS (Engine Control System), the PCC does not control the starter but still checks the engine speed. If the engine control module (ECM) or another device does not turn on the starter, the genset does not start, and there is no fault code. The PCC waits indefinitely for the engine to start.

6.4.2.1.3 Crank Engine

This step begins when the engine speed becomes greater than zero.

If Starter Owner is set to GCS (Genset Control System), the starter follows these rules:

· If Cycle / Cont Crank Select is Continuous, the starter remains on for Continuous Crank Engage Time.

· If Cycle / Cont Crank Select is Cycle, the starter turns on for Cycle Crank Engage Time and turns off for Cycle Crank Rest Time. The starter repeats this process up to Crank Attempts times.

At the same time, the PCC checks these conditions:

· The engine speed is greater than Starter Disconnect Speed.

· The PCC's Backup Start Disconnect connection is active.

If any of these conditions are met, the PCC stops cranking the engine. This step is completed.

If none of these conditions are met, the PCC continues cranking the engine. If none of these conditions are met when the PCC finishes cranking, the PCC generates shutdown fault 359 (Fail To Start).

If Starter Owner is set to ECS (Engine Control System), the PCC does not control the starter but still checks the engine speed. If the engine speed is greater than Starter Disconnect Speed, this step is completed.

6.4.2.1.4 Idle Warmup

The PCC runs the engine at idle speed until one of these conditions is met:

· Idle Warmup Time expires.

· The coolant temperature reaches Idle Warmup Coolant Temp.

6.4.2.1.5 Idle to Rated Ramp Time

The PCC raises the engine speed from idle speed to rated speed linearly during Idle to Rated Ramp Time.

6.4.2.1.6 Start Automatic Voltage Regulator (AVR)

The automatic voltage regulator (AVR) is enabled when all of these conditions are met:

· AVR Enable is set to Enable. (This parameter is not available in the Operator Panel.)

· The PCC is in Auto mode; or the PCC is in Manual mode, and Excitation Disable Override is Excitation On.

If all of these conditions are met, the PCC starts driving the field windings in the exciter when the engine speed reaches Governor Enable Engine Speed. Then, it raises the voltage to rated voltage linearly during Voltage Ramp Time.

If any of these conditions is not met, the PCC does not drive the field windings in the exciter.

6.4.2.2 Without Idle Warmup

The PCC runs this sequence if either of these conditions is met:

· The coolant temperature is already greater than Idle Warmup Coolant Temp.

· Genset Idle Enable is set to Disabled.

6.4.2.2.1 Multiple Steps in Parallel

In this step, the PCC begins multiple steps at the same time and does not continue until every one has finished.

Start Time Delay

Prelube Engine

If Prelube Function Enable is Enabled, the PCC turns on the oil-priming pump. The PCC turns off the oil-priming pump when one of these conditions is met:

· Prelube Timeout Period expires.

· The oil pressure is greater than or equal to Prelube Oil Pressure Threshold.

6.4.2.2.2 Start Engine

If Starter Owner is set to GCS (Genset Control System), the PCC turns on the starter for up to two seconds.

If the engine speed remains zero, the PCC turns off the starter, waits two seconds, and turns on the starter again.

If the engine speed remains zero two consecutive times, the PCC generates shutdown fault 1438 (Fail To Crank).

If the engine speed becomes greater than zero, this step is complete.

If Starter Owner is set to ECS (Engine Control System), the PCC does not control the starter but still checks the engine speed. If the engine control module (ECM) or another device does not turn on the starter, the genset does not start, and there is no fault code. The PCC waits indefinitely for the engine to start.

6.4.2.2.3 Crank Engine

This step begins when the engine speed becomes greater than zero.

If Starter Owner is set to GCS (Genset Control System), the starter follows these rules:

· If Cycle / Cont Crank Select is Continuous, the starter remains on for Continuous Crank Engage Time.

· If Cycle / Cont Crank Select is Cycle, the starter turns on for Cycle Crank Engage Time and turns off for Cycle Crank Rest Time. The starter repeats this process up to Crank Attempts times.

At the same time, the PCC checks these conditions:

· The engine speed is greater than Starter Disconnect Speed.

· The PCC's Backup Start Disconnect connection is active.

If any of these conditions are met, the PCC stops cranking the engine. This step is completed.

If none of these conditions are met, the PCC continues cranking the engine. If none of these conditions are met when the PCC finishes cranking, the PCC generates shutdown fault 359 (Fail To Start).

If Starter Owner is set to ECS (Engine Control System), the PCC does not control the starter but still checks the engine speed. If the engine speed is greater than Starter Disconnect Speed, this step is completed.

6.4.2.2.4 Starting to Rated Ramp Time

The PCC raises the engine speed from starting to rated speed linearly during Starting to Rated Ramp Time.

This has no effect in applications with hydromechanical engines.

6.4.2.2.5 Start Automatic Voltage Regulator (AVR)

The automatic voltage regulator (AVR) is enabled when all of these conditions are met:

· AVR Enable is set to Enable. (This parameter is not available in the Operator Panel.)

· The PCC is in Auto mode; or the PCC is in Manual mode, and Excitation Disable Override is Excitation On.

If all of these conditions are met, the PCC starts driving the field windings in the exciter when the engine speed reaches Governor Enable Engine Speed. Then, it raises the voltage to rated voltage linearly during Voltage Ramp Time.

If any of these conditions is not met, the PCC does not drive the field windings in the exciter.