Installation manual

Simrad SD570 / Base version

851--160116 / B

When connecting the gyro cable to the 15 pin D- connector, note

that each of the three phases S1, S2, S3 has three different

connection pins, marked L (Low), M (Medium) and H (High).

These pins are used for different gyro output voltage values as

indicated for the connections below:

Signal phase 1: S1- L (20- 70V) pin 2

S1- M (80- 140V) pin 9

S1- H (150- 220V) pin 1

Signal phase 2: S2- L (20- 70V) pin 11

S2- M (80- 140V) pin 3

S2- H (150- 220V) pin 10

Signal phase 3: S3- L (20- 70V) pin 5

S3- M (80- 140V) pin 12

S3- H (150- 220V) pin 4

Reference : +/- REF pin 7

-/+ REF(see note) pin 15

Note ! If the output voltage is only half-wave rectified, the other reference from

the gyro which is not used for the three phases must be connected to pin

15.

j Locate the 15 pin D--connector, the connector housing

and the shrink tube in the spare parts box. Refer to the

output voltage which was written into the table for the

stepper data specifications, and make the connectionsto

the 15--pin D--connector with reference to the

pin--connection list above. Also refer to figure 20 which

showsthepinlocationoftheconnectorseenfromthewire

soldering side. The cable screen should be connected to

the connector housing.

Figure 20 - Connections for a gyro with stepper output