Littelfuse M0600 User Manual

Engine Control

Advanced

M0600 SERIES

Shutdown Unit

Simplified Circuit Diagram

M0600

(Shut-Down Unit)

OVS

SPA

LOP

RUN

STP

+24 V

COM

–

–

NO

+ –

24 V

SHUTDOWN

NC

SENSOR
INPUTS

Description

The M0600 Shutdown Unit is a back-up protection device
designed for marine engines. It is ensuring safety shutdown
of the engine in case normal primary shutdown fails. The
unit works as a stand-alone protection unit, and is for DIN-rail
mounting. Alternatively it can be mounted directly on the
back of the M2000 Engine Controller.

Together with Engine controller units M2000 it can be
used to build a complete control, alarm and safety system
for marine engines. The unit has inputs for overspeed, low
oil pressure and one more user defined parameter, which
could be e.g. high water temperature. It also has an input to
indicate that the engine is running and one to indicate that
the engine is stopping.

The monitoring of low oil pressure is only active when the
engine is running with a few seconds delay after detection
of the running signal. This time delay can be defined via
programming switches. A normally open (NO) output relay
can give a closing signal which can be used to stop the
engine via it’s stop coil, and a normally closed (NC) relay can
open in order to stop the engine via the fuel valve. The length
of the relay activation time can be defined via programming
switches.

The M0600 is type approved by major marine classification
societies.

Input terminals

1. OVS Overspeed

2. SPA Spare

3. LOP Low Oil Pressure

4. RUN Running (Crank Disconnect)

5. STP Stop (Engine Stop)

6. + 24 V Supply Voltage (+)

7. – Supply Voltage (-)

8. – Supply Voltage (-)

Ordering Information

ORDERING NUMBER DELAY FOR SPA DELAY FOR LOP

M0600.0010 100 msec. 500 msec.

M0600.0020 1.5 sec. 1.5 sec.

© 2013 Littelfuse Protection Relays & Controls

www.littelfuse.com/m2600

Features & Benefits

FEATURES BENEFITS

Stand-alone unit Runs independantly, as a back-up for the M2000

Combines with M2000 Provides complete redundancy

Mountable on
rear of M2000

Flexibilit y of use; Also DIN-rail mountable

Rev: 4-A-050313