Si-tex SP120C - Page 14

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SI-TEX Marine Electronics - SP120C Color Autopilot
Wiring Information
Solenoid Valves - Important Information
Ifanemergencyjogleveristtedthenthemotoroutputsmustbeisolated!to
prevent damage to the drivers. To isolate, a 2 pole change over relay must be
installed between the SP120C and the Solenoids, as per diagram below;
Also as a preventative measure to ensure voltage spikes do not interfere with
the AUTOPILOT or other equipment, spike suppression diodes should be
ttedonsolenoidvalves.
Rudder Connector
Pin connections from rear of plug, solder connection side.
NOTE: Pin 1 has dot adjacent.
Pin 1 5V RFU Supply
Pin 2 RFU Wiper
Pin 3 0V RFU Supply / TX- RS-232 GND
Pin 4 TX+ RS-232 Data + (heading information)
Pin 5 + GPS Input (Positive)
Pin 6 - GPS Input (Negative)
Supplied GPS Cable (for NON-RFU models)
Thestandardsystemissuppliedwithashort4core30cmy-lead,for
wiring direct to a GPS unit. See below for the color codes used for external
connections;
NMEA input from GPS:
Pin 5 +GPS Input (Positive) White wire
Pin 6 - GPS Input (Return) Green wire
NMEA output for Heading data to external systems:
Pin 4 + Heading Data Out (Positive) - Red wire
Pin 3 - Heading Data Out (Negative) - Blue wire (0 volt line)
NOTE: For further interfacing information, refer to the installation manual
supplied with your GPS unit.
RED
BLK
YEL
YEL/BLK
GRN
NC1
NO1
C1
NC2
NO2
C2
POWER +VE
POWER -VE
MOTOR
MOTOR
CLUTCH
SWITCH OR
CIRCUIT
BREAKER
(15A)
12V OR 24V DC
2PDT RELAY
12/24VDC
BATTERY
+VE
12/24VDC
BATTERY
-VE
STEERING SOLENOID (PORT)
STEERING SOLENOID (STBD)
JOG LEVER
1
6
5
2
3
4
RED
BLK
YEL
YEL/BLK
GRN
POWER +VE
POWER -VE
MOTOR
MOTOR
CLUTCH