Diesel Engine Monitoring and Safety Systems

AHD 514 A

Start/Stop-System with combined Alarm System for Propulsion Diesel Engines

AHD 514 A is a microprocessor-controlled device for starting and stopping of propulsion Diesel engines, assuming control of all required monitoring functions incl. automatic stop at overspeed with individual adaption to type series of different engine manufacturers.

Product feature:

  • Profile module for installation on standard profile rails in consoles, control panels or control cabinets
  • Degree of protection IP 20
  • 1 speed input, galvanically isolated
  • 6 analog inputs (4 – 20 mA) / binary for status messages and alarm inputs
  • 6 analog inputs (Pt100/Pt1000) / binary for status messages and alarm inputs
  • Analog inputs configurable
  • 2 binary inputs, wire-breakage monitored
  • 8 binary inputs for control functions (remote start/stop, horn quit, overspeed test etc.)
  • 2 binary inputs for fuse trip monitoring and charging alternator
  • 8 relay outputs, 6 A, potential free, for starter relay, engine control and alarm outputs
  • 2 transistor outputs, 8 A, wire-breakage monitored and short circuit-proof, for engine stop
  • 1 analog output (4 – 20 mA / 1 – 5 V DC / 2 – 10 V DC)
  • Power supply 24 V DC +30%/-25%
  • Integrated alarm and event log memory for logging of up to 10000 alarms and events. Recall of data via PC-Software.
  • 2 CAN Bus interfaces for data communication with AHD 514 S safety system and AHD 514 OP display and operation unit as well as external alarm system (on demand)
  • 1 RS232 interface (9-pole Sub-D) for fault diagnostics / log read out / firmware-update
  • 1 serial input (optocoupler), i.e. for control inputs of external data station
  • 2 serial output (optocoupler), i.e. for external relay or display unit
  • Connections via pluggable terminal lists
  • Type approved by Germanischer Lloyd, Lloyd´s Register of Shipping, American Bureau of Shipping, Registro Italiano Navale and Bureau Veritas (further approvals on demand)

 

AHD 514 S

Safety System with combined Emergency Stop System for Propulsion Diesel Engines

AHD 514 S is a microprocessor-controlled device comprising all safety functions, predetermined by classification societies for monitoring systems for propulsion Diesel engines with individual adaption to type series of different engine manufacturers.

Product feature:

  • Profile module for installation on standard profile rails in consoles, control panels or control cabinets
  • Degree of protection IP 20
  • Two separated 24 V DC power supplies for emergency stop circuit and safety system
  • Emergency stop function independently from safety function
  • Separate processing of emergency stop inputs and stop criteria
  • An initiated emergency stop is routed directly to the emergency stop output
  • Acquisition of safety relevant (redundant) sensors independently from alarm system AHD 514 A
  • 2 independent binary emergency stop inputs, wire-breakage monitored
  • 2 binary inputs, wire-breakage monitored, for stop criteria
  • 5 binary inputs for control functions (Alarm acknowledgement, reset, overspeed test, override etc.)
  • 1 speed input, galvanically isolated
  • 4 relay outputs, 6 A, potential free, for alarm and failure outputs
  • 2 transistor outputs, 8 A, wire-breakage monitored and short circuit-proof, for engine stop via solenoid/operating magnet, air flaps from safety system
  • 1 transistor outputs, 8 A, wire-breakage monitored and short circuit-proof, for engine stop from emergency stop system
  • 1 analog output (4 – 20 mA) for external speed indication
  • Power supply 2 x 24 V DC +30%/-25% for safety system and emergency stop system
  • 1 CAN Bus interface for data communication with AHD 514 A start/stop-alarm system
  • 1 serial output (optocoupler)
  • Connections via pluggable terminal lists
  • Type approved by Germanischer Lloyd, Lloyd´s Register of Shipping, American Bureau of Shipping, Registro Italiano Navale and Bureau Veritas (further approvals on demand)

 

AHD 514 OP

Display and Operation Unit for AHD 514 Propulsion Diesel Monitoring System

AHD 514 OP is a 5.7“ colour display with operating keys for control and tabular and graphical presentation of system and status data of AHD 514 propulsion Diesel monitoring system on multiple visualization pages.

The unit is installed in control cabinet of the propulsion Diesel engine or optionally as a remote operating panel in external control stands (i.e. wheelhouse, MCR).

Product feature:

  • Compact design for console, panel or switchbox installation
  • Front dimension 144mm x 144mm, low insertion depth 50 mm
  • Degree of protection IP 67 (front side), IP 20 (rear side)
  • 5.7” LCD colour display
  • Luminous intensity 500 cd/m2
  • Display resolution 640 (H) x 480 (V) pixels
  • Colour depth 262144 colours
  • Automatic dimming of backlight
  • Presentation of system and status data of AHD 514 propulsion Diesel monitoring system and of system menu on multiple visualization pages
  • Control by means of 7 operating push buttons in front panel of the device incl. push buttons for starting and stopping of propulsion Diesel engine
  • 1 CAN Bus interface for data communication with AHD 514 A start/stop-alarm system and AHD 514 S safety system
  • Cascadable with further AHD 514 OP unit as remote control unit
  • Type approved by Germanischer Lloyd, Lloyd´s Register of Shipping, American Bureau of Shipping, Registro Italiano Navale and Bureau Veritas (further approvals on demand)

 

AHD 414

Start-Stop-Diesel Control Unit with integrated firing and overspeed monitoring

AHD 414 is a microprocessor-controlled device for starting, stopping and monitoring of Diesel engines with individual adaption to type series of different  engine manufacturers.

Product feature:

  • Compact design for console, panel or switchbox installation
  • Front dimension 144mm x 144mm, low insertion depth 53mm
  • Degree of protection IP 54 (front side with protection cover)
  • Integrated firing and overspeed monitoring (frequency depending), programmable in decimal code
  • 10 binary inputs for status messages and alarm inputs
  • 7 relay outputs for engine control and und alarm outputs
  • High rating of relay outputs for solenoid/operating magnet, max. 20 A switch-on current, max. 10 A continuous current
  • Further relays max. 2 A continuous current
  • Power supply 24 V DC +30%/-25% or 12 V DC
  • Low current consumption of electronics (appr. 0.15A)
  • Pluggable 22-pole terminal list
  • Bidirectional serial interface (TTY) for data communication with other data station resp. remote control
  • Push button for acknowledgement of acoustical and optical alarm as well as lamp test
  • Reset push button for resetting of alarms and abortion of stop signals
  • Type approved by Germanischer Lloyd, Lloyd´s Register of Shipping, Det Norske Veritas, Bureau Veritas, American Bureau of Shipping, Russian Maritime Register of Shipping (further approvals on demand)

 

AHD 414 A

Alarm and Safety System, 11 Binary Inputs

AHD 414 A is a microprocessor-controlled device with 11 binary inputs for alarm and status messages and is applicable as alarm or safety system.

Product feature:

  • Compact design for console, panel or switchbox installation
  • Front dimension 144mm x 144mm
  • Degree of protection IP 54 (front side)
  • LED-indications for each measuring point with individual text as well as push buttons for acknowledgement integrated in front plate (External acknowledgement via terminal list)
  • Input delay up to 99 s
  • 1 input for alarm blocking
  • Override function
  • 3 freely programmable group relays and one horn relay
  • 24-pole pluggable terminal list
  • Wire breakage monitoring for sensor and stop circuit (safety system)
  • Data communication via serial interface
  • Type approved by Germanischer Lloyd, Lloyd´s Register of Shipping, Det Norske Veritas, Bureau Veritas, American Bureau of Shipping, Russian Maritime Register of Shipping (further approvals on demand)