Page 28 (44)
Available signals to the relay unit
These are all the available signals in the DCU 305 R3 that can be
routed to any of the relays on the relay cards.
Relay K7 and K9 on the terminal card RK-66 are configurable in the
same manner.
Signal
Comment
Acknowledge button Manual press of the Acknowledge button.
Analogue sensor
failure
An analogue input (4-20mA) is defined but the signal
is less than 2mA.
Backup system
failure
The backup system is not working.
Buzzer active
Buzzer is activated.
Buzzer off button
Manual press of the Buzzer Off button.
Common analogue
input current
overload
The sensor fuse is blown. The fuse resets itself when
the short circuit is removed.
Common shutdown
Sum of all shutdown channels.
Common warning
Sum of all warning channels
Cooling state
The genset is cooling and running at no load.
Cranking state
The Control Unit signals the start motor. The genset is
cranking. On between start attempts also.
Delayed stop
activated
The Control Unit has received signal saying the genset
will eventually stop.
Disconnect gen
breaker relay
activated
The generator circuit breaker relay is activated.
Downloading
parameters
A new configuration is being transmitted to the
control unit.
Engine started
The Control Unit detects the engine is running but no
start signal has been detected.
Engine stopped for
unknown reason
The engine stopped for no known reason.
First start attempt
failed
The
first
of several start attempts failed during
automatic start.
Local mode
LOCAL mode is selected, and no remote commands
will work.
Lamp test button
Manual press of the Lamp test button.
Manual mode
The Control Unit is set to Manual mode.
Manual stop
Manual Stop button, local or remote.
Overspeed
Engine speed too high. Stays until Acknowledged.
Pickup failure
Unable to detect a valid pickup signal. Dependent
upon at least one defined
Additional RUN Detection
.
Sum of pickup 1 and 2.
Summary of Contents for DCU 305 R3 LT
Page 1: ...Auto Maskin Installation Manual DCU 305 R3 DCU 305 R3 LT Diesel Engine Control Unit...
Page 2: ...About this manual ii...
Page 35: ...Page 35 44 Schematic Drawings Sample Schematic Page 1...
Page 36: ...Page 36 44 Sample Schematic Page 2...
Page 37: ...Page 37 44 Optional Relay Unit MK 14...