SeaSTAR OPTIMUM EPS - Ignition & Tachometer Connections

© 2014 SeaStar Solutions Optimus Installation Manual, Rev. E
4-19
The PCM’s ignition sensing leads must be connected in such a way
that an ignition-on signal is received when any of the engine ignition
switches are on. On twin-engine applications you simply need to connect
the two ignition-sensing leads on the CM20304 harness to the port
and starboard switched ignition wires. These are usually violet or yellow
wires, found on the back of the ignition switches.
Triple- and quad-engine applications may already be wired to deliver
such an ignition signal. If not you may require the use of one or two
Dual Ignition Kits (HA1201). The Dual Ignition Kit combines two ignition
sources into a single signal. You would need one kit for a triple, and
two for a quad.
The EPS system requires an engine speed input (RPM).
• Theinputcanbeananalogtachometerinputandconnectedto
the PCM through the CM20304 harness.
• ThesignalcanbefromanRPMsourceontheNMEA2000
®
CAN Bus using the optional CM20503 NMEA 2000
®
interface
cable. This will require PGN 127488 be on the CAN Bus.
• SeeSections6.4through6.5fordetails.
The Optimus EPS system can take steering commands from compatible
autopilot units through a simple CAN2 network connection. No additional
hydraulic pumps or connections are required. Refer to www.
seastarsolutions.com for compatible autopilot systems.
An additional network tee on the CAN2 network will be required
(CM10060). You may also need a DeviceNet extension harness to
extend either the CAN2 backbone or the autopilot harness. Extension
harnesses are listed in section 4.3.2.
Refer to the autopilot installation instructions for additional information.
Figure 4-17. Autopilot connection to CAN 2 network.
AUTOPILOT
NETWORK TEE
CM10060
CAN 2 BACKBONE
USE HARNESS INCLUDED
WITH AUTOPILOT
CAN 2 BACKBONE
4.4.3 Ignition & Tachometer Connections
4.4.4 Optional Autopilot Connection