Si-tex SP38, Installation And Operation Manual, Page: 60 / 193

Sitex SP38 Installation and Operation
Document PN 29010101 V1r0
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Shunt-Field Reversing Motors
For shunt-field reversing motors, connect the shunt field coil positive terminal to the SW’D B+
output, and the coil negative terminal to SW’D GND as per the diagram in Figure 35 :
Figure 35 – Wiring Connections for Shunt Field Reversing Motors
Standard Four-Way Solenoid-Activated Hydraulic Valves
Connection to 12 VDC or 24 VDC solenoids should be made as per the diagram in Figure 36 .
In this configuration, the autopilot supplies the positive voltage ( SW’D B+ ) whenever the
autopilot is in POWER STEER , AUTO , or NAV modes. SW’D B+ is turned off in STANDBY
mode, thus providing an extra measure of safety.
A warning should be here : do not wire an external JOG Lever directly to M1 M2,
otherwise you may damage the drive output circuits in the SPU and void the
warranty on your SP38 system, and/or the warranty of other equipment.
Figure 36 – Wiring Connections for Standard Four-Way Solenoid Valves