AHD 514 A

Start-stop system with combined alarm system for diesel engines

AHD 514 A is a microprocessor-controlled device for starting and stopping drive diesel engines with all necessary monitoring functions, including auto stop at overspeed and individual adjustment 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
1 speed input, galvanically isolated
6 analog inputs (4 — 20 mA)/binary for status messages and alarms
6 analog inputs (Pt100/Pt1000)/binary for status messages and alarms
Analog inputs can be parameterized
2 binary inputs, wire-break-monitored
8 binary inputs for control functions (remote start/stop, alarm confirmation, overspeed test, etc.)
2 binary inputs for monitoring fuse/alternator
8 relay outputs, 6 A, potential-free, for starter relays, motor control and alarm outputs
2 transistor outputs, 8 A, wire-break-monitored and short-circuit-proof, for motor stop
1 analog output (4 — 20 mA/1 — 5 V DC/2 — 10 V DC)
24 V DC power supply +30%/-25%
Integrated alarm and event memory for logging up to 10000 alarms and events, retrieving data via PC software
2 CAN bus interfaces for data communication with AHD 514 S safety system and AHD 514 OP display and control unit and, if applicable, an external alarm system
1 RS232 interface (9-pin Sub-D) for fault diagnosis/log readout/firmware update
1 serial input (optical coupler) e.g. for control inputs of an external data station
2 serial outputs (optical coupler) e.g. for external relay or display unit
Connections via pluggable terminal strips