Installation Manual

Twin Disc, Incorporated

Electrical Installation

Electronic Control Module Throttle Wiring

These signals interface with the engine Electronic Control Module’s (ECM’s) throttle input. The engine control module can also be referred to as the Electronic

Control Unit (ECU), Electronic Engine Control (EEC), or other similar names.

The engine manufacturer provides specific engine control manuals that detail the requirements for the throttle signal and power supply connections. The

Engine Control Harness (J5) has six pins for throttle control. Table 10 lists the pin functions.

The engine control output can consist of three signals as follows:

‰

The throttle control signal

‰

‰

An optional signal indicating the transmission is in neutral

An optional signal indicating the transmission is not in neutral

Table 10. Engine Control Pin Functions

Pin

J5 Pin 1

J5 Pin 2

Signal Name

ECM Power Supply

Throttle Signal

Function

Power supply for the Throttle Signal. It is most often a power supply coming from J8 pin 2. In some cases it may be power coming from the

ECM. This signal is to be used as the power source for the throttle signal output.

The throttle position output signal. Depending upon the engine manufacturer, this signal can be a programmed voltage or current. The throttle signal is directed by the position of the lever at the active control head. It can also be a pulse train with programmable low and high levels with variable frequency or pulse widths. This is configured by the Twin Disc distributor or at the factory.

J5 Pin 3 ECM Power Supply

Common

The common return path and reference point for engine throttle circuit.

J5 Pin 4 Transmission State 1 A solid-state switch output that goes active when the transmission is in neutral. This wire is used only for specific engines. See page B-12 in Appendix B for additional information

J5 Pin 5 Transmission State 2 A solid-state switch output that goes active when the transmission is not in neutral. This wire is used only for specific engines. See page B-

12 in Appendix B for additional information

J5 Pin 6 Transmission State

Return

The return signal for the transmission state signal. This wire is used only for specific engines. See page B-12 in Appendix B for additional information

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The EC300 Control System currently supports the following types of electronic engine controls:

Table 11. Engines Supported

Engine Manufacturer

Caterpillar

Cummins

Cummins

Detroit Diesel

Detroit Diesel

Deutz

Deutz

Iveco

Iveco

John Deere

MAN

MTU

Scania

Volvo Penta

Volvo Penta

Engine Name in MFST

Caterpillar

Cummins Centry/Celect

Cummins Quantum

Detroit Diesel Voltage

Detroit Diesel Frequency

Deutz Type 1

Deutz Type 2

Iveco PWM

Iveco Voltage

John Deere

MAN Current

MTU

Scania

Volvo Penta EVC B

Volvo Penta EVC C

Voltage

Voltage

Voltage

Current

Current

Voltage

Current

Current

Carrier

Voltage

Current

Voltage

Voltage

Current

Voltage

Voltage

Modulation

PWM

Amplitude

Amplitude

Amplitude

Frequency

PWM

Amplitude

PWM

Amplitude

Amplitude

Amplitude

Amplitude

Amplitude

Amplitude

Amplitude

If the specific engine is not listed, contact Twin Disc Incorporated or a local distributor for custom information and support.

Note: All EC300 Control configuration is performed by Twin Disc

Incorporated or its local distributor.

Refer to Appendix - B for detailed electrical installation requirements for the engines listed.

Harness Fabrication and Wiring Procedure

Note: The connector kit supplied for Engine Control Harness

J5 has enough contacts and plugs necessary to fill the connector. Use only the contacts that are needed. Unused connector positions must have a sealing plug inserted in order to maintain the environmental integrity of the connector.

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4168

Twin Disc, Incorporated

Electrical Installation

5.

6.

7.

8.

Install the Engine Throttle Wiring portion of the Engine Control harnesses as follows:

Refer to General Electrical Installation Guidelines for harness routing criteria.

1.

Identify the wiring requirements from the installation drawing and from appendix -B for the specific engine installation.

2.

Locate the necessary connecting points on the engine control module or engine control wiring circuits.

3.

4.

Make a suitable interface harness containing the necessary conductors.

Note: The throttle signal wires must be 18 AWG stranded copper wire. All other wires must be a minimum of 18 AWG stranded copper wire.

Connect the engine harness at the engine end.

Note: It may be desirable to complete any other terminations for this harness before securing the harness.

Route the engine harness to the associated EC300 Control.

Crimp the supplied Deutsch pin (P/N 0462-209-16141) using the

Deutsch HDT crimp tool (P/N HDT 48-00) for the Engine Control Harness

J5 connector on the wires.

Remove the locking wedge from the Deutsch connector.

Insert the wires into the proper position in the J5 connector.

Note: Refer to the EC300 System Installation Drawings in the

Engineering Drawings Section for pin numbering information.

Note: The J5 connector is provided in the Engine throttle connector kit.

Note: Ensure that the pin to wire crimp is uniform and complete.

Ensure that the pin is locked into in the connector.

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9.

When all pins have been inserted in the connector body, then insert the

Deutsch locking wedge.

10.

Ensure that sealing plugs are installed in all empty connector positions.

11.

Align the harness connector with the J5 receptacle of the EC300 Control and push it in until it snaps into place.

12.

Secure all harnesses to a supporting structure with clamps or cable ties at 406 mm (16 in.) intervals.

98 EC300 Marine Control System Installation Manual #1024168