Installation Manual

Twin Disc, Incorporated

Electrical Installation

Engine Room Analog Harness (J6) Installation

The Engine Room Analog Harness Connector (J6) provides analog inputs from a transmission oil temperature sensor and a transmission output speed sensor.

The oil temperature sensor is not applicable in all installations. The Engine

Room Analog harness is fully pre-fabricated and plugs into the J6 connector at the EC300 Control and directly into the temperature sensor and output speed sensor at the other end. The J6 connector contains all contacts and sealing plugs that are required to fill the connector. Sealing plugs must be installed into all unused connector contact positions in order to maintain the integrity of the connector.

This section contains the following sub-sections:

‰

Transmission Oil Temperature Sensor Wiring Installation

‰

Transmission Output Speed Sensor Wiring Installation

HARNESS, WIRING

ENGINE ROOM ANALOG

TRANS OIL

TEMP SENSOR

TRANSMISSION

OUTPUT SENSOR

TWIN DISC

INCORPORATED

MODEL EC300

P/N 1020676

BOM

S/N

VOLTAGE 12-24VDC

J1 J2 J3 J4

J5

4

J6

5

J7

1 8

J8

J9 J10 J11

J12 J13

J6-6

J6-8

J6-7

J6-3

J6-4

J6-5

J6-1

J6-2

X

X

X

SENSOR + EXCITATION

SENSOR RETURN

SIGNAL

RED

BLACK

ORANGE

SIGNAL

SENSOR RETURN

RED/GRN STRIPE

GRN/RED STRIPE

A

B

C

TRANSMISSION

OUTPUT

A

B

TRANS OIL TEMP

Figure 42. Engine Room Analog Harness (J6) Wiring Diagram

EC300 Marine Control System Installation Manual #1024168

101

Electrical Installation

Twin Disc, Incorporated

Transmission Oil Temperature Sensor Wiring Installation

Install the wiring for a Transmission Oil Temperature Sensor as follows (See

Figure 42):

Refer to General Electrical Installation Guidelines for harness routing criteria.

1.

Align the Engine Room Analog Harness connector with the J6 receptacle of the EC300 Control and push it in until it snaps into place.

2.

Route the Engine Room Analog Harness to the associated transmission.

Note: The Transmission Oil Temperature Sensor cable is part of the Engine Room Analog harness. Cable ties may be removed for routing purposes.

3.

4.

Install the Transmission Oil Temperature Sensor cable’s receptacle onto the transmission oil temperature sensor’s plug.

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

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

102 EC300 Marine Control System Installation Manual #1024168