ACU-150 Power Drive Unit

The ACU-150 (Actuator Control Unit) power housing is a key component of the Raymarine Evolution autopilot system. Its primary role is to provide power and control a Type 1 hydraulic drive unit, enabling the autopilot to steer the vessel with precision. It serves as the interface between the SeaTalk NG network and the drive unit.

The ACU-150 is designed to operate within a Raymarine Evolution autopilot system. It is compatible with EV-1 sensors and Raymarine autopilot control heads p70, p70s, p70R, and p70Rs. It is specifically suited for Type 1 hydraulic drive units.

The ACU-150 power unit is designed for 12 V d.c. on-board electrical systems. For adequate protection, it must be installed with a 15 A fuse or circuit breaker on its power circuit.

The ACU-150 connects to the SeaTalk NG network via a spur cable that links it directly to the SeaTalk NG backbone. This connection enables communication and data exchange with other autopilot system components.

The ACU-150 power unit is specifically designed to power and control Type 1 hydraulic drive units. It is not compatible with other types of drive units or systems requiring a different power supply.

Yes, the ACU-150 must be mounted in a dry location protected from direct water ingress. It is also important to respect safety distances from magnetic compasses and follow EMC (Electromagnetic Compatibility) installation guidelines to ensure optimal performance and avoid interference.

Yes, the ACU-150 has a dedicated connection for a rudder angle sensor. Using such a sensor is highly recommended to achieve optimal autopilot performance, as it provides precise information on the rudder position.

The dimensions of the ACU-150 power housing are as follows:

Height: 140 mmWidth: 180 mmDepth: 52 mmThese dimensions include mounting points.

The Raymarine ACU-150 (Actuator Control Unit) is a power unit designed for Raymarine Evolution autopilot systems. Its primary role is to supply power and control to the drive unit of your autopilot, ensuring precise steering of your vessel.

The ACU-150 power drive is compatible with the following Raymarine autopilot control heads:

Compatible multifunction displays (MFD)

When installing the ACU-150, certain location requirements must be met. The housing must be mounted in a dry, protected area, away from excessive heat sources and electromagnetic interference. It is also critical to maintain a safe distance from your vessel's magnetic compass, as specified in the installation instructions to prevent any disruption.

Yes, for optimal safety and performance, the ACU-150 power unit requires a dedicated drain wire for grounding. It is imperative to verify that the device is properly connected to ground in accordance with the installation instructions before powering it on. It must under no circumstances be connected to a positive ground system.

When installing the ACU-150 unit, it is essential to protect the power supply with a fuse of the appropriate rating or an automatic circuit breaker. The installation instructions provide precise specifications for inline fuses and thermal circuit breakers.

Dockside calibration is a critical step that must be performed before the first use of your autopilot system. It configures important preferences such as hull type, drive type, and rudder limits. The dockside calibration process is guided by a setup assistant and ensures the autopilot operates optimally and safely.

Raymarine strongly recommends having this product installed by a Raymarine-certified installer. Since the autopilot system’s performance is critical to safety, professional installation ensures proper operation and compliance with safety requirements.

To ensure optimal performance of your ACU-150 and the entire Raymarine Evolution autopilot system, it is important to keep the software up to date. You can check the latest available software versions for your product on the official Raymarine website.

The ACU-150 power unit is fitted with LED indicators that provide information about the system’s operating status. These LEDs allow for quick diagnosis of the unit’s condition and verification of its proper operation. The specific details of the LED indicators are described in the installation manual.

The "end-to-end rudder travel time" setting is important for vessels not equipped with a rudder angle sensor. It allows the autopilot system to estimate the time required to move the rudder from one end stop to the other. This setting is critical to prevent the steering mechanism from impacting the end stops and is configured during dockside calibration.

No, the ACU-150 power drive unit contains no user-serviceable components. For any maintenance or repair requests, contact an authorized Raymarine distributor. Any unauthorized service voids the device warranty.