Installation Manual
–
SDU 404
Page 7
Shutdown Override Disabled
Enable this if the event shall be
triggered even if SDU is in shutdown
override state.
This is typical for a manual E-stop
button.
Delay before Load Reduction
Set the number of seconds until load
reduction.
Delay before Shutdown
Set the number of seconds until
shutdown.
Initial Delay
Set the number of seconds until switch
channel is activated for monitoring.
The “Initial Delay” countdown starts
when all criteria (“
Engine is running
”
and “Speed Limit”) are met.
Speed Limit Enabled
Set if Speed limit is enabled or not. The
actual engine speed is set in the Speed
limit [RPM] section.
Speed Limit [RPM]
If the engine speed is above the
set value, then the channel is
enabled.
If the engine speed drops 50
RPM below the set value, then
the channel is disabled.
Miscellaneous
Set input voltage warning levels.
Enable “Allow Load Reduction
Override” to override load
reductions via the shutdown
override switch.
Enable “Automatic Buzzer Off” to
make the SDU buzzer silence
automatically after five seconds.
“Shutdown Override Switch” and
“Acknowledge Switch”
configuration.
Output Functions
Configuration of relays and digital
output.
Synchronize
Synchronization of DCU and SDU
configuration.
