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AHD 502

Control unit for AHD 501 central unit

The AHD 502 control unit is a microprocessor-controlled device for operating and displaying measurement data from the power unit of the bow thruster, consisting of a three-phase asynchronous engine (slip ring rotor) with an attached fixed propeller. As standard, control units are installed in the bridge console (master control unit) and in the ship's cam positions (slave control units). Up to 4 devices can be connected to the AHD 501 control unit.

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  • Control unit for bow thruster control AHD 501
  • Compact design for control station, panel, or box installation
  • Front dimensions 192 mm x 144 mm, installation depth 45 mm
  • Protection class IP 67
  • Weight approx. 1.0 kg
  • 24 V DC power supply +30%/-25%
  • Power consumption max. 0.5 A
  • Identical design of the units, making spare parts easy to handle
  • Compact design and minimal cabling costs
  • CAN bus communication (3 x CAN) to the control and display units in the cam drives and to the central unit
  • Easy operation of the bow thruster, direct control of the power levels via illuminated command keys
  • 3.5” TFT color display, transflective with backlight to display all operating states, current motor current and current alarms, system menu
  • Automatic and adjustable dimming
  • Audible and visual message of all alarms
  • Potential-free contacts for collective alarm and external horn
  • Integrated service page for displaying internal system states, retrieving the alarm memory and programming overcurrent limits
  • Power request to the power management system with the “Power Request” button with “Power Ready” feedback input (control via master unit)
  • Integrated “Emergency Stop” button, emergency stop function through direct switching even in case of system failure
  • Optional optocoupler input for connecting an AHD-PS15 binary data station, e.g. for connecting an external joystick controller
  • System menu for service, configuration and status messages. The most important parameters can be queried or configured on site
  • Integrated RS422 interface to Voyage Data Recorder, galvanically isolated. Data protocol in accordance with IEC-61162-1 standard
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Assembly instructions

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