Propulsion Order Lever Telegraph

Type 5401

Application

The type 5401 telegraph transmits propulsion orders from a ship's wheelhouse to engine room.

Features

• Single or Twin Screw
• Multiple Stations
• Bi-directional communication of orders and replies
• Dimmable internal illumination
• Internal horn
• Contacts for external signal bells
• Wrong direction alarms
• Power fail alarms
• Completely watertight
• Corrosion resistant
• Conformal coated PC boards
• Rugged construction
• Unbreakable transparent cover
• Many different detent & friction arrangements
• Easy to install

Options

• Electric Shaft System
• Custom Scales
• Potentiometers, 4 to 20 mA Transmitters and Switches for Remote Control, Data logger, etc.
• Electric or Pneumatic Controls
• Remote telegraph repeater in IP65 enclosure

General Description

The Type 5401 propulsion telegraph is a traditional lever telegraph system. This rugged, high quality, innovative product is designed to withstand the severe environment encountered on board marine vessels. It can be used on outdoor wing consoles and can be easily retrofitted into existing vessels.

The Type 5401 propulsion telegraph provides a means of bi-directional communication between the bridge and the engine room. This communication is in the form of orders placed and acknowledged via the levers on the telegraph units.

The Type 5401 operates from multiple bridge and engine room stations. Reply pointer positioning is controlled through 4-20mA current loops. Proven circuits are used to execute the command and servo reply pointer control loops.

The system design allows for up to five telegraphs, single or twin screw, on the bridge and up to five in the engine room. All telegraphs are connected to form two communication loops; one for the reply pointers in the bridge and one for the reply pointers in the engine room.

The lever telegraph allows for two power supply inputs for each lever. This provides many different options for powering the system. The standard system has two 24 V_DC power supplies to power all telegraphs in parallel. If one power source fails, the telegraph automatically operates from the other supply. If both power supplies fail at any one telegraph, an alarm contact will open. This can turn on a power failure indicator operating from a separate supply.

A wide range of operational requirements are fulfilled by many detent and friction arrangements.

Order bells, station in command transfer systems, power supplies, wrong direction indicators, limit switches, application specific engineering drawings, etc. are also available form PMC.

PMC's electric shaft system can be incorporated into the telegraph system. With this arrangement, the levers of all bridge telegraphs follow the bridge telegraph in command. This feature is also available for multiple engine room telegraph installations.

Another option is a single lever telegraph with pneumatic control.

Dimensions above Console (without gasket)

Typical Installation

Washington State 116.5 m Super Class ferry, MV Kaleetan & MV Yakima.

Digital Type 5401 Telegraphs with Electric Shaft are installed on the 70.7 m Light Icebreaker - Major Navaids Tender CCGS J.E. Bernier.

94.5 m Kennedy Class Staten Island Ferry. Three of these vessels are equipped with Type 5401 Lever Telegraphs.

Other PMC Telegraphs

Type 8201 Pushbutton Telegraph	Type 8202-1000 Compact Telegraph	Type 8202-2000 Azimuth Telegraph