400 Series Installation and Configuration
DCU 410 Engine Panel Installation
41
Engine Speed
This is where engine speed sensors are configured, and
the overspeed setpoint is set.
Source
The DCU can read engine speed from up to three sensor
sources.
Source
Comment
J1939 #1
J1939 #2
J1939 CAN bus connected to terminals 49-51
(COM 4) or 47-48 (COM5)
DCU
Magnetic pickup locally connected to DCU,
terminal 44 and 45.
SDU 410
One of the two pickups connected to the SDU
safety unit.
The SDU has a scheme for selecting from its two
connected pickups.
SDU 404
Magnetic pickup locally connected to SDU.
Priorities
The engine speed sources are prioritized. The DCU will
use the sensor assigned as the primary source first.
