AHD 514 S

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.

• Profile module for installation on standard profile rails in consoles, control panels or control cabinets
• Degree of protection IP 20
• 2 separated 24 V DC power supplies for emergency stop circuit and safety system
• Emergency stop function independent 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 independent from alarm system AHD 514 A
• 2 independent binary emergency stop inputs, wire-breakage monitored
• 5 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 output, 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