Furuno FR-2125V Gyrocompass, Frequency Remarks, Rotor voltage, Stator voltage, Ratio SW1-1 SW1-3

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

Setting method 1: DIP switch settings by gyrocompass specifications

1) Gyrocompass type

Gyrocompass	SW	SW	SW	JP1
type	1-4	1-5	1-6
AC synchronous	OFF	OFF	OFF	#1, #2,
				#3
DC synchronous	OFF	OFF	OFF	#2, #3,
				#4
DC step	ON	OFF	OFF	#4, #5,
				#6
Full-wave	OFF	ON	OFF	#4, #5,
pulsating current				#6
Half-wave	ON	ON	OFF	#4, #5,
pulsating current				#6

2) Frequency

Frequency	SW	SW	Remarks
	1-7	1-8
50/60 Hz	OFF	OFF	AC synchronous
			pulsating current
400 Hz	ON	OFF	AC synchronous
			pulsating current
500 Hz	OFF	ON	AC synchronous
			pulsating current
DC	ON	ON	DC synchronous
			DC step

3)Rotor voltage

(between R1 & R2)

Rotor voltage			SW 2-1	JP3
20	V to 45	VAC	ON	#2
30 V to 70		VAC	OFF	#2
40 V to 90		VAC	ON	#1
60	V to 135 VAC		OFF	#1

4)Stator voltage (between S1 and S2)

Stator voltage			SW 2-2	SW 2-3	JP2
20	V to 45	VAC, or	ON	OFF	#2
20	V to 60	VDC
20	V to 45	VAC, or	OFF	OFF	#2
20	V to 60	VDC
40 V to 90 VAC			ON	OFF	#1
60 V to 135 VAC			OFF	OFF	#1

5) Ratio

Ratio	SW1-1	SW 1-2	SW1-3
360x	OFF	OFF	OFF
180x	ON	OFF	OFF
90X	OFF	ON	OFF
36X	ON	ON	OFF

6) Supply voltage

Supply voltage				JP4	JP5
20	V to 45	VAC, or		#2	#2
20	V to 60	VDC
30 V to 135			VAC, or	#1	#1
40	V to 100		VDC

4-4