ID-DCU-MARINE-2.2.1
, ©ComAp – January 2015
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ID-DCU-MARINE-2.2.1r2.pdf
Binary output COMM SD
Output indicates any shutdown Alarm.
Normal mode
: the output is controlled from ID-DCU MARINE (Binary output Comm Sd)
Backup mode
: the output is activated if RPU emergency stop or
SD1
– SD5
become active.
Binary output COMM WRN
Common warning indication.
Normal mode:
the output is controlled from ID-DCU MARINE (Binary output Comm Wrn)
Backup mode:
the output is ACTIVE.
Binary output STOP SOL
Stop solenoid output (high side switch) with broken wire (BW) detection active on opened output.
Normal mode:
the output is controlled from the ID-DCU MARINE. The logical output Stop solenoid must be
configured to this output in the configuration of ID-DCU MARINE. In case the stop solenoid is not used, the
output must be configured as not used, otherwise broken wire protection will be detected.
Backup mode:
the output is activated in case of any shutdown and released 10s after zero RPM reached.
Binary output FUEL SOL
Fuel solenoid output (high side switch) with broken wire (BW) detection active on opened output.
Normal mode:
the output is controlled from the ID-DCU MARINE. The logical output Fuel solenoid must be
configured to this output in the configuration of ID-DCU MARINE. In case the fuel solenoid is not used, the
output must be configured as not used, otherwise broken wire protection will be detected.
Backup mode:
If no shutdown protection active, the output is closed.
SEC RPM IN, SEC RPM GND
Terminals for the secondary RPM pickup. It is possible to connect two redundancy pickups or one pickup to
ID-DCU MARINE and to the ID-RPU in parallel. The ID-RPU will detect over speed failure on running engine.
Battery voltage measuring
ID-RPU senses battery voltage on both power supply inputs. Those values are connected to the ID-DCU
MARINE trough the CANON connector. There is one common Battery V>, V< and delay limit for all three
batteries.
Watchdog
ID-DCU MARINE periodically (~ 0.2s) sends an impulse to the ID-RPU. ID-RPU backup mode is activated
after 1s without watchdog pulse.
Over speed protection
The ID-RPU over speed protection is active in the case of ID-DCU MARINE fail only (backup mode). Over
speed limit can be set by DIP switch (accessible after cover removal).
ID-RPU Emergency / Auxiliary mode operation
ID-RPU only reflects ID-DCU MARINE setting following way. ID-DCU MARINE controller modes are selected
on ID-DCU MARINE only.
ID-RPU binary inputs
Emergency mode
Auxiliary mode
Emergency stop
Active
Active
Shut down Sd1
– Sd5
Inactive
Active
ID-RPU is switched to Emergency mode after power-on reset without ID-DCU MARINE.
ID-RPU operation in the case of ID-DCU MARINE fault
The ID-RPU itself can never start the engine because of the engine starter is controlled from ID-DCU
MARINE.
