AHD 501
Central Unit for Bow Thruster Control for Fixed Propeller, Driven by 3-phase-Asynchronous Motor (slip-ring rotor)
The central unit AHD 501 is a microprocessor-controlled device comprising all required in and outputs for control and monitoring of the power section of a bow thruster, consisting of a 3-phase-asynchronous motor (slip-ring rotor) with fixed propeller. The central unit is installed in power section resp. in the control cabinet of the bow thruster.
Product Features
- Profile module for installation on standard profile rails in consoles, control panels or control cabinets
- Degree of protection IP 20
- Weight approx. 0.7 kg
- Power supply 24 V DC +30%/-25%
- Current consumption max. 0.5 A
- CAN-bus data communication with up to 3 control units AHD 502
- Direct control of direction, stage and interstage contactors including feedback monitoring
- Control of 3 main stages (70%, 85%, 100%) and up to 6 interstages
- Fan control and monitoring
- 2-phase monitoring of motor current (galvanically isolated) and of winding temperatures in the motor
- Monitoring of oil level of motor
- Check of contactor control voltage (circuit breaker)
- Controllable direct-locking of 100-percent-stage
- High rating of relay for contactor control; the demand of auxiliary contactors is only required in exceptional cases
- 3 integrated LED-status indications for power supply, failure and alarm
- USB diagnostics interface for service, configuration and status messages. All the most important parameters may be polled or configured at site
- Type test approvals for leading classification societies