Electronic Modular Control Panel II (EMCP II) For MUI Engines Caterpillar

Introduction To Setpoints

OP5 is the option for programming the setpoints of the engine/generator. The engine/generator setpoints affect the proper operation and serviceability of the engine, and the accuracy of the information shown on the display. The setpoints are programmed in the GSC at the factory.

When the GSC is moved from one engine and installed in a different engine, the setpoints may need to be changed. Also, to satisfy the requirements of the customer, the setpoints may need to be changed. The setpoints stored in the GSC must match the specified setpoints of the 129-4053 Control Panel Chart or the 103-1582 Control Panel Chart that is packaged within the control panel. These setpoints are from P01 through P24 and the setpoints are programmable.

Note: The definition of some setpoints has changed, and the quantity of setpoints has changed.

• P08 is the engine type (0 = diesel, 1 = gas) on the former 103-6177117-6200113-4500 EMCP Electronic Controls (Generator Set Control).

• P22, P23 and P24 are not present on the former 103-6177117-6200113-4500 EMCP Electronic Controls (Generator Set Control).

Procedure For Setpoint Programming

Note: Service mode cannot be entered when the ECS is in the AUTO position.

Note: Any active shutdown fault must be made inactive in order to access service mode. A FLASHING shutdown indicator means that a shutdown fault exists. To temporarily change a shutdown fault from an active shutdown fault to an inactive shutdown fault, turn the ECS to the OFF/RESET position. To permanently change a shutdown fault from an active shutdown fault to an inactive shutdown fault, the fault must not be occurring. Also, the ECS must be turned to the OFF/RESET position. If the jumper from terminal 6 to terminal 9 is not installed on the ECS, then the GSC will not power up in OFF/RESET and any active shutdown fault must be corrected before entering service mode.

1. Turn the ECS to the STOP position in order to shutdown the engine. Enter service mode and enter the password. "OP 1" is showing on lower display. See Systems Operation, "Service Mode" for more information. See Systems Operation, "Password Entry OP3" for more information.

2. Press "SCROLL UP" key four times. "OP 5" is showing on the lower display.

3. Press the "SELECT" key once. "P01" is showing. "P01" is followed by the value of the setpoint.

4. Press "SCROLL UP" or "SCROLL DOWN" key. The next setpoint is showing with a corresponding value. Repeat this step until the desired setpoint is showing.

5. Press "SELECT" key. The value of the setpoint is flashing.

6. Press "SCROLL UP" or "SCROLL DOWN" key in order to adjust the value of the setpoint.

   Note: To rapidly scroll through a large range of values, hold the appropriate scroll key.

7. Press "ENTER" key. The value of the setpoint stops flashing. Repeat steps 4, 5, 6 and 7 until all the desired setpoints are adjusted.

8. Press "EXIT" key. "OP 1" is showing on the lower display.

9. Press "EXIT" key. The display will return to the normal mode.

Setpoint Description

Programming of some setpoints requires the operator to know the model number of the EMCP II. The model number is located on the name plate on the inside bottom of the control panel. The model number is based on panel options and generator ratings. The model number is explained on the 129-4053 Control Panel Chart or 103-1582 Control Panel Chart which is included within the EMCP II. The information on the chart is necessary for programming the setpoints of the GSC. The model number has numerous characters and is similar to "EB3CAS3A1BDSP1CE0".

Note: For the correct setpoints, always check the 129-4053 Control Panel Chart or 103-1582 Control Panel Chart. The chart is included within the EMCP II.

P01 Fuel Solenoid Type - This setpoint tells the GSC which type of fuel system solenoid is used on the generator set. The sixth character of the model number specifies this setpoint. The default setting from the factory is 0.

0 - energize to run (ETR) fuel solenoid

1 - energize to shutoff (ETS) fuel solenoid

P02 Units Shown - This setpoint controls the type of units of measurement that are shown on the display. A character of the model number specifies this setpoint. The default setting from the factory is 0.

0 - English units

1 - metric units

P03 Shutdown Override For Engine Fault - This setpoint tells the GSC the manner in which to respond to a low engine oil pressure or high coolant temperature fault. The customer specifies this setpoint, or the application specifies this setpoint. The default setting from the factory is 0.

0 - engine shutdown

1 - alarm only (shutdown override, no engine shutdown)

Note: Shutdown override for a fault with low oil pressure or high coolant temperature is intended to be only temporary. When the GSC is programmed to override these faults (P03 = 1), the operator should closely monitor the oil pressure and coolant temperature on the lower display. Do not override shutdown on a permanent basis unless regulations or codes specific to the application require it.

P04 Shutdown Enable For Sensor Fault - This setpoint tells the GSC the manner in which to respond to a diagnostic fault with the engine oil pressure sensor, coolant temperature sensor, sensor power supply, or coolant loss sensor. The customer specifies this setpoint, or the application specifies this setpoint. The default setting from the factory is 0.

0 - alarm only (shutdown override, no engine shutdown)

1 - engine shutdown

P05 Coolant Loss Sensor - This setpoint tells the GSC if the optional engine coolant loss sensor is installed on the generator set. A character of the model number specifies this setpoint. The default setting from the factory is 0.

0 - generator sets without coolant loss sensor

1 - generator sets with coolant loss sensor

P06 Shutdown Override For Coolant Loss Fault - This setpoint tells the GSC the manner in which to respond to an engine coolant loss fault. The customer specifies this setpoint, or the application specifies this setpoint. The default setting from the factory is 0.

0 - engine shutdown

1 - alarm only (shutdown override, no engine shutdown)

Note: Shutdown override for a coolant loss fault is intended to be only temporary. Do not override shutdown on a permanent basis unless regulations or codes specific to the application require it.

P07 System Voltage - This setpoint tells the GSC the system voltage or battery voltage that is used on the generator set. The application specifies this setpoint. The default setting from the factory is 0.

0 - 24 volts

1 - 32 volts

P08 Upper Display Enable/Disable - This setpoint tells the GSC to enable or disable the showing of AC values on the upper display. All other information such as diagnostic codes will still be shown. The application specifies this setpoint. The default setting from the factory is 0.

0 - upper display enabled

1 - upper display disabled

Note: P08 is engine type (0 = diesel, 1 = gas) on former 103-6177113-4500117-6200 EMCP Electronic Controls (Generator Set Control).

P09 Ring Gear Teeth - This setoint tells the GSC the number of teeth on the ring gear of the engine. The seventh character of the model number specifies this setpoint. The application specifies this setpoint. The default setting from the factory is 136 teeth. The value is selectable from 95 to 350 teeth in one tooth increments.

P10 Engine Overspeed - This setpoint tells the GSC the engine speed to declare that an engine overspeed fault exists. The fifth character of the model number specifies this setpoint. The engine overspeed setpoint for all 60 Hz applications is 1.18 times the rated speed. The default setting from the factory is 2120 rpm. The value is selectable from 500 to 4330 rpm in increments of 10 rpm.

P11 Crank Terminate Speed - This setpoint tells the GSC the engine speed at which to disengage the starting motor during engine cranking. The fifth character of the model number specifies this setpoint. The default setting from the factory is 400 rpm. The value is selectable from 100 to 1000 rpm in increments of 10 rpm.

P12 Oil Step Speed - This setpoint tells the GSC the engine speed to use for distinguishing between rated speed and idle speed when a low oil pressure fault exists. The fifth character of the model number specifies this setpoint. The default setting from the factory is 1350 rpm. The value is selectable from 400 to 1800 rpm in increments of 10 rpm.

P13 Low Oil Pressure Shutdown At Rated Speed - This setpoint tells the GSC when to declare that a low oil pressure shutdown fault exists with the engine at rated speed. The engine speed must have exceeded the oil step speed for nine seconds. The fifth character of the model number specifies this setpoint. The default setting from the factory is 205 kPa (30 psi). The value is selectable from 34 to 420 kPa (5 to 60 psi) in increments of one.

Note: When oil pressure drops to within 34 kPa (5 psi) of the P13 setpoint, an oil pressure alarm is issued by the GSC and the optional alarm module.

P14 Low Oil Pressure Shutdown At Idle Speed - This setpoint tells the GSC when to declare that a low oil pressure shutdown fault exists with the engine at idle speed. The engine must have been running for at least nine seconds, and the engine speed must be less than the oil step speed. The fifth character of the model number specifies this setpoint. The default setting from the factory is 70 kPa (10 psi). The value is selectable from 20 to 336 kPa (3 to 50 psi) in increments of one.

Note: When oil pressure drops to within 34 kPa (5 psi) of the P14 setpoint, an oil pressure alarm is issued by the GSC. When oil pressure is greater than the P14 setpoint, the GSC activates the EGR K1 relay. The GSC then tells the electronic governor to go to rated speed. When oil pressure is less than the P14 setpoint, the GSC deactivates the EGR K1 relay. The GSC then tells the electronic governor to go to idle speed.

P15 High Water Temperature Shutdown - This setpoint tells the GSC when to declare that a high coolant temperature shutdown fault exists. This is done after a 10 second delay. The fifth character of the model number specifies this setpoint. The default setting from the factory is 107°C (225°F). The value is selectable from 94°C to 123°C (201°F to 253°F) in increments of one degree.

Note: A high coolant temperature alarm is issued by the GSC when coolant temperature rises to within 6°C (11°F) of the P15 setpoint,

P16 Low Water Temperature Alarm - This setpoint tells the GSC when to declare that a low coolant temperature alarm fault exists. This is done after a two second delay. The customer specifies this setpoint or the application specifies this setpoint. The default setting from the factory is 21°C (70°F). The value is selectable from 0°C to 36°C (32°F to 97°F) in increments of one degree.

P17 Total Cycle Crank Time - This setpoint tells the GSC when to declare that an overcrank fault exists. The customer specifies this setpoint or the application specifies this setpoint. The default setting from the factory is 90 seconds. The value is selectable from 5 to 120 seconds in increments of one second.

P18 Cycle Crank Time - During a single crank cycle, this setpoint tells the GSC the amount of time to crank and then the setpoint tells the GSC the amount of time to rest the starting motor. The customer specifies this setpoint or the application specifies this setpoint. The default setting from the factory is 10 seconds. The value is selectable. The value can be 5 to 60 seconds in increments of one second.

P19 Cooldown Time - This setpoint tells the GSC the amount of time to allow the engine to run after a normal shutdown is initiated. The customer specifies this setpoint or the application specifies this setpoint. The default setting from the factory is 5 minutes. The value is selectable. The value can be 0 to 30 minutes in increments of one minute.

P20 AC Voltage Full Scale - This setpoint tells the GSC the full scale (maximum) AC voltage of the generator set. The GSC measures the AC voltage, and the GSC shows the AC voltage on the display. The application specifies this setpoint. The values are 700V, 150V, 300V, 500V, 600V, 750V, 3.0kV, 4.5kV, 5.25kV, 9.0kV, 15.0kV, 18.0kV and 30.0kV. The setpoint is factory set at 700V for all standard EMCP II equipped generator sets. The other values are for switch gear applications which require the use of external potential transformers as well as the removal of the AC voltage range jumper located in the relay module. See Testing And Adjusting, "AC Voltage Range Selection".

P21 AC Current Full Scale - This setpoint is the ratio of the current transformers (CT) based on a 5A secondary. It does not represent the maximum AC current of the generator set. The GSC measures the AC current and the GSC shows the AC current on the display. The values are 75A, 100A, 150A, 200A, 300A, 400A, 600A, 800A, 1000A, 1200A, 1500A, 2000A, 2500A, 3000A and 4000A. The default setting from the factory is 600A.

P22 GSC Engine Number - This setpoint informs other devices on the CAT Data Link of the engine number for the GSC. The customer specifies this setpoint or the application specifies this setpoint. The values are from 01 through 08. The default setting from the factory is 01.

Note: P22 is not present on former 103-6177113-4500117-6200 EMCP Electronic Controls .

P23 Engine Type - This setpoint tells the GSC whether the generator set engine is a mechanical unit injector (MUI) diesel engine, a gas engine, or an electronic unit injector (EUI) diesel engine. The application specifies this setpoint. The default setting from the factory is 0.

0 - MUI diesel

1 - GAS

2 - EUI diesel

Note: P23 is not present on former 103-6177113-4500117-6200 EMCP Electronic Controls .

P24 Crank Time Delay - This setpoint tells the GSC the length of time to delay activation of the FCR during a crank cycle. This setpoint is only for gas engines. The P24 setpoint only functions when the P23 setpoint is set to 1 (gas engine). The application specifies this setpoint. The default setting from the factory is 5 seconds. The value is selectable. The value can be 0 to 20 seconds in increments of one second.

Note: P24 is not present on former 103-6177113-4500117-6200 EMCP Electronic Controls .