Littelfuse M2000 User Manual

Engine Control

Basic

M2000 SERIES

Engine Control

Wiring Diagram

LOCAL

1

START

AUTO

2

START

MODE

3

4

INPUTS

15

M2000

ENGINE CONTROLLER

CIRCUIT

16

CHECK

+

28

24 V

–

17

27

30

31

3229

OUTPUTS

Description

The M2000 Engine Control controls start and stop of the
engine, monitors and protects the engine during start and
operation, and simultaneously indicates the engine and alarm
status on the front of the unit. It has 9 shutdown/alarm inputs.
It is controlling the cranking, fuel valve and stop solenoid of
the engine. It is possible to configure the unit to perform up
to 6 start attempts, with user configurable crank and rest
periods. When the engine fires, cranking will be disconnected
by activating the crank disconnect input from a tacho relay or
from a direct measurement from a magnetic pick up. When
stopping the engine, a generator circuit breaker trip is available
for genset applications. A stop delay can be configured for
cooling down the engine before stop. M2000 includes cable
check of all sensor inputs. Basic configuration can be set by
dip-switches on the rear of the unit.

Extended configuration is possible using a PC. Easy installation
is ensured by means of clamping fittings, and plug-in
connection terminals. The M2000 includes an RS485 interface
enabling MODBUS RTU communication. The M2000 has been
designed and tested for use in harsh environments.

Features & Benefits

FEATURES BENEFITS

8 Alarm/shutdown
inputs

Cable monitoring on
sensor inputs

Speed detection from
magnetic pick-up

Type-approved by marine
classification societies

RS485 Modbus RTU Communication with HMI and SCADA systems

Monitoring of e.g. oil pressure, coolant
temperature and engine speed

Fail safe s ystem

No tacho relay required

Applicable in marine control and alarm systems

Accessories

M0500 Tacho Detector

Reads engine speed from frequency of the
generator output voltage. The reading is
converted to a square wave signal and this
signal is provided on a dedicated output.

K3452 RS232 Cable

For configuration from PC.

Ordering Information

ORDERING NUMBER CONTROL POWER

M2000.0130 12 V–24 Vdc, IP54 at front.

ACCESSORIES REQUIREMENT

M0500 Optional

K3452 Optional

Specifications

Voltage Supply 12-24 Vdc±30% (8-32 Vdc)
Consumption Max. 180 mA
Inputs 7 normally open contacts; 1 tacho voltage;1 pick-up
Tacho Input Square or sine wave between 0 Vdc and

supply voltage

Pick-up Input Square or sine wave, range 2.5 Vac to 33 Vac
Tolerance, Freq. Meas. ±2%
Frequency Range 50 Hz to 10 kHz
Outputs 11 open collector outputs, max. 150 mA per channel
Siren Relay Contact 230 Vac/2 A; 30 Vdc/2 A, 30 W
Tolerance, Delays ± 2%
LED Flash Frequency Slow flashing light: 1.25 Hz ±10%
Quick Flashing Light 5 Hz ±10%
Programming 16 dip-switches or via RS232 inter face
Communication RS485 interface
Protocol MODBUS-RTU
Baud Rate 1200, 2400, 4800, 9600
Parit y None
Data Bits 8
Stop Bits 1

Operating Temp. –20°C to +70°C
Humidity 95% RH at 20°C
Vibration Test 4 g RMS according to IEC 60068-2-64
Approvals Certified by major marine classification societies
Burn-in 50 hours before final test
Weight 0.4 kg
Dimensions H 144 mm (5.7”); W 144 mm (5.7”); D 35 mm (1.4”)
Panel Cut-out H 138 mm (5.4”); W 138 mm (5.4”)
Protection Degree-Front IP54 or IP32 (see Type Description)

© 2013 Littelfuse Protection Relays & Controls

www.littelfuse.com/m2000

Rev: 4-A-050313