AHD 514 S

Safety system with combined emergency stop system for diesel engines

AHD 514 S is a microprocessor-controlled device, equipped with all safety functions specified by classification societies for monitoring systems for drive diesel engines and individual adaptation to series from various engine manufacturers.

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Module housing for installation on standard mounting rails in desks, consoles, control panels or control boxes
Protection class IP 20
Two separate 24 V DC supplies for emergency stop circuit and safety system. Emergency stop function independent of the safety function
Separate processing of emergency stop inputs and stop criteria
Direct transmission of a triggered emergency stop to the emergency stop exit
Detection of safety-relevant (redundant) sensors independent of the AHD 514 A alarm system
2 independent binary emergency stop inputs, wire break monitored
5 binary inputs, wire break monitored for stop criteria
5 binary inputs for control functions (alarm acknowledgement, reset, override override test, etc.)
1 speed input, galvanically isolated
4 relay outputs, 6 A, potential-free, for alarm and fault outputs
2 transistor outputs, 8 A, wire-break-monitored and short-circuit-proof, for motor stop via lift/operating magnet, air dampers from the safety system
1 transistor output, 8 A, wire-break-monitored and short-circuit-proof, for motor stop from the emergency stop system
1 analog output (4 — 20 mA) for external speed display
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 strips