Connection of external power supply

An external power supply is necessary when the repeater signal is step-by-step type and the step voltage is below 20V or output voltage is less than 5 W.

1.Cut jumper wire JP1 on the GYRO CONVERTER Board when an external power supply is used.

2.Connect gyro cable and power cable as shown below.

External Power Supply 20 - 135 VAC

20100 VDC

Gyrocompass (Step type)

A64P1106

J5

1 R2

2 R1/COM

Either connection in case of DC polarity.

S1

J4

1 S1

S2

2 S2

 

S3

3 S3

COM

4 T

F.G.

5 F.G.

 

Figure 4-3 Connection of external power supply to GYRO CONVERTER Board

DIP switch, jumper wire settings

Default setting

The default setting of all DIP switches is off and all jumpers wire are set to “#1.” (Note that jumper wire JP1 is set at #1, #2, and #3.) In those settings the gyrocom- pass having the following characteristics can be directly connected; modification of the GYRO CONVERTER Board is not necessary.

AC synchronous signal: 50/60 Hz

Rotor voltage: 60 V to 135 V AC

Stator voltage: 60 V to 135 V AC

Gear ratio: 360x

Supply voltage: 30 V to 135 V AC

If the specifications of the gyrocompass differ from those mentioned above, change jumper wire and DIP switches settings on the GYRO CONVERTER Board. Set- tings may be changed according to gyrocompass specifications or make and model of gyrocompass (see page 4-5). For the location of DIP switches and jumper wires, see page 4-6.

4-3

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Furuno FR-2135S manual Connection of external power supply, DIP switch, jumper wire settings, Default setting