11 9957N Analog Engine Controller Connections

Manual Start/Stop

To manually Start the Gen–Set, set the Master Control switch to the “Manual Run” position. The following happens:

1.When the “Manual Run” push–button is pressed, an Engine Start Delay timer is initiated. (The start sequence will not be initiated if any shutdown fault condition is present.)

2.When the engine start delay time expires, an engine RUN and CRANK output signal will be initiated. (The RUN output may be programmed to only energize when a start signal is initiated and an engine speed signal is detected.)

3.When the engine starts and begins to accelerate to nominal speed, the controllers speed sensor will terminate the CRANK output when engine speed reaches approximately 20% speed (i.e. CRANK DISCONNECT speed setpoint).

To manually Stop the Gen–Set, set the Master Control switch to the “Stop” position. The controllers RUN output will be immediately terminated which will initiate the engine stop sequence. The engine is locked out and will not run with the Master Control switch in “Stop”.

Automatic Start/Stop

To setup the generator for automatic operation, set the Master Control switch to the “Auto Start” position. The following happens:

1.The engine will automatically start upon activation of the remote start contact input. The remote device initiates a start sequence upon contact closure.

2.When the remote start signal is activated, the engine will start as per the sequence of operation described for the manual start sequence.

3.The automatic stop sequence will be initiated by removal of the remote start signal.

4.When the start signal is removed, a cool down delay function will be initiated.

5.When the cool down time delay period expires (typically 5 minutes), the controllers RUN output will be immediately terminated which will initiate the engine to stop.

Automatic Fault Shutdown

When a fault circuit is programmed as a SHUTDOWN, the engine will immediately stop when the fault is activated. A specific shutdown fault can be programmed with a definite time transient delay period that must expire before the shutdown is activated. The stop sequence will cause the controllers RUN output to be immediately terminated which will cause the engine to stop.

Figure 4-11 9957N Analog Engine Controller Connections

Starting Battery

Fuel Relay

Start Relay

High Water

Temperature

Low Oil

Pressure

10A

Manual
Off
Auto
				Remote Start
				Contact
				Display
15	14	13	X1	LED’s
15	14	13	X1
				12	Low Oil Pressure
6				11	High Water Temperature
5				10	Overcrank
4				9	Overspeed
3				8	RUN (Engine Started – Not Used)
Switches shown in
2	OFF position 7				Common Alarm (Not Used)
1

Magnetic

Pickup

External Components

Overspeed Verify (Off = True Speed,

On = 13% increase)

Single (On) or Cycle Crank (Off)

Crank Attempts

Crank Cycle

Crank Disconnect

Overspeed

Oil Pressure Water Temperature Delay

3 Crank Attempts

Off Off Off 1

Off On Off 2

On Off Off 3

On On Off 4

Off Off On 5

Off On On 6

On Off On 7

On On On 8

MN2408

Operation 4-23