Sleipner S-Link Automatic Main Switch AMS-2 (PDF)

OWNER'S MANUAL

How the Sleipner AMS-2 S-Link automatic main switch works and how to install it: main features, contactor and coil feed, dimensions, fuse and cable fitting, wiring and panel fault messages.

DocumentSleipner S-Link Automatic Main Switch AMS-2 Installation & User Manual

FormatPDF · 12 pages · 0.9 MB

LanguageEnglish

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Overview Before You Start Fitting Troubleshooting S-Link Bus Products

Sleipner S-Link Automatic Main Switch AMS-2 — Installation & User Manual

What the AMS-2 Does

Main Parts

Contactor: the high-current relay connecting the battery (B+ stud) to the load (THRUSTER+ stud).
Contactor coil: powered by a low-current supply (AMS SUPPLY / coil feed, red and black leads) through an external 5A fuse (not included); controlled by the AMS software and circuit board.
Red mushroom button: pulled out = remote control via S-Link; pressed in = manual override, contactor stays open whatever S-Link commands.
ANL fuse in the built-in holder, selected for the load's maximum current and the wire gauge (see the thruster manual).
Short S-Link spur cable to connect to the S-Link network – needed for remote operation.

Features

Remote control from anywhere on board through S-Link compatible Sleipner products (e.g. a joystick panel).
Detects a blown fuse at start-up and reports it on the S-Link panel; reports Manual Override mode too.
Temperature supervision: asks eVision thrusters and other ELS components to reduce power as it warms, and opens the contactor above the critical level; warnings appear on the panel.
B+/Thruster voltage 0-64 VDC; coil feed 12/24/48 V (absolute max. 64 VDC), adjusted automatically.

Considerations and Dimensions

Install the AMS as close to the battery bank as possible, in a location that stays dry at all times, with quick access to the shut-off button and short power cables.
Only connect it to compatible original Sleipner control panels or control devices.
Do NOT fit it in spaces requiring ignition protected equipment.
Use the correct fuse for the installed thruster model (see the thruster installation manual). This manual is used in addition to the thruster manual and is intended for professionals.

Code	Description	mm	inch
H	Height	194.3	7.6
L	Length	205	8.1
W	Width	79	3.11
+W	Width including fasteners	90	3.54
(a)	Attachment hole from the top	51.5	2.03
(b)	Attachment hole from the bottom	92.8	3.65
(c)	Attachment hole from the side	37.5	1.5
(d)	Distance between attachment holes	121.8	4.8
(e)	Attachment hole from the side	45.7	1.8

Mounting, Fuse and Cables

Remove the cover screws and cover; secure the AMS with the two mounting holes on each side.
Remove the nuts and washers, install the fuse (type and rating per the thruster installation manual).
Assemble washers, battery cable(s), end washer and nuts; tighten to 20 Nm (14.5 lb/ft). The bolts are brass: excessive torque damages the threads.
Fit the thruster cable(s) the same way and tighten to the recommended torque.
Manual override: pulled out = remote controlled ON/OFF (default); pushed in = OFF. Leave it OFF when leaving the boat for long periods or when installing or servicing the thruster system.

Do NOT use washers between lugs: it can cause overheating and a thermal event. Spring washers go in the outer position before tightening the nut. For dual cables, leave one washer on each bolt as shown in the PDF.

Wiring (unit only): battery + to the ANL fuse/B+ side, THRUSTER+ to the thruster system, coil feed 12/24/48V through the 5A fuse with an optional on/off switch, S-Link spur to the backbone. See the thruster system manual for the complete diagram.

Service and Troubleshooting

Keep the equipment clean and dry.
Check all cable and other connections are tight, without signs of excessive heat or corrosion.

Panel message	Action
Manual override	The override button has been pushed: pull it to activate
Fuse is blown	Replace the fuse, or check the main cables to battery and thruster
Communication fail	Panel has lost contact with the AMS: check S-Link and/or power connections
Power failure	AMS has no power: check the 5A fuse, the power connection and power on the red and black wire
Overtemperature	High internal temperature from excessive current: the contactor stays open until it cools below the threshold – wait for the AMS to cool

S-Link System Rules

Cables & Connectors

Component	Role
BACKBONE Cable (blue ends)	Common power and communication bus through the vessel; standard lengths
SPUR Cable (green ends)	One per connected product, no exceptions; keep as short as practical
POWER Cable	Required in every installation; only one per BACKBONE; protect with a 2A fuse. Yellow and black wires to GND, red to +12VDC or +24VDC
T-Connector	One per SPUR or POWER Cable on the BACKBONE
4-Port T-Connector	Several SPUR Cables on one point; two sealing caps for unused ports
BACKBONE Extender	Joins two BACKBONE Cables
END Terminator	One at each end of the BACKBONE bus

Installation Rules

Keep BACKBONE and SPUR lengths to a minimum; consult your distributor if the total BACKBONE exceeds 100 meters.
Fasten cables to avoid sharp bends, chafe and strain on connectors; close the connector locks fully.
Do not leave cables, T-Connectors or Extenders permanently immersed; make a U-bend before each product connector so water does not run into it.
Ideally connect the POWER Cable in the middle of the BACKBONE for equal voltage drop at both ends.
Route S-Link away from radio transmitters, antennas and high voltage cables.
Unused SPUR cables may be left unterminated for future equipment: protect the open connectors from water.
Connect only original Sleipner S-Link products or authorised equipment directly to the bus; third-party equipment goes through a Sleipner interface, and at least one original Sleipner control panel must still be installed.

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