ECU-CR.4

Engine Control Unit – Common Rail . 4 Cylinders

• Diesel engine management up to 250 kW
• Common Rail – injection system up to 4 cylinders  
• Applications: small trucks and busses, small agricultur-, forestry- and construction-machinery
• Lowest cost – control unit

ECU-CR.8

Engine Control Unit – Common Rail . 8 Cylinders

• Diesel engine management up to 500 kW 
• Common Rail – injection system up to 8 cylinders
• Applications: truck and bus, agricultur-, forestry- and construction-machinery, small ships, locomotives, off-road vehicles
• Low cost – control unit

ECU-CR.20

Engine Control Unit – Common Rail . 20 Cylinders

• Diesel engine management up to 20.000 kW  
• Common Rail – injection system up to 20 cylinders
• Applications: marine, rail traction, heavy vehicle, aggregate
• Highend – control unit for advanced requirements and large functional range for governing, control, monitoring and protection of the engien
• Redundant operation of two control units in safety relevant applications with integrated switch-over circuitry for injectors and actuators
• Two types: round metal connectors for direct engine mounting, spring type terminals for mounting into terminal box or cabin

Feature	ECU-CR.4	ECU-CR.8	ECU-CR.20
Dimensions	166 x 132 x 37 mm	280 x 220 x 35 mm	354 x 266 x 54 mm
Housing material	Aluminum diecast	Aluminum diecast	Aluminum diecast
Weight	About 1,2 kg	About 1,5 kg	About 4 kg
Mountin direction	Any	Any	Any
Connectors MIL-C-26482	AMP plastic connectors                       121 pins	AMP plastic connectors               186 pins	Metal round connectors rather spring type terminals, 292 pins
Protection class EN 60529	IP 66k	IP 66k	IP 66k rather IP 23
Vibration IEC 60068-2-6	2 g, < 200 Hz	2 g, < 200 Hz, engine mounting with vibration dampers	2 g, < 200 Hz, engine mounting with vibration dampers
Shock IEC 60068-2-27	50 g, 50 ms – half sine	50 g, 50 ms – half sine	50 g, 50 ms – half sine
Humidity IEC 60068-2-30	95 %, not condensating	95 %, not condensating	95 %, not condensating
Housing temperature IEC 60068-2-1, -2	-20…70 °C	-20…70 °C fuel cooler available	-20…70 °C fuel cooler available
Rated voltage	24 VDC, 18 – 32 VDC	12/24 VDC, 8 – 32 VDC	24 VDC, 18 – 32 VDC
Voltage resistance	550 VAC	550 VAC	550 VAC
Isolation resistance	10 MOhm	10 MOhm	10 MOhm
EMC IEC 61000-4, CISPR 16	10 V/m, 2 GHz	10 V/m, 2 GHz	10 V/m, 2 GHz

Description	Specification	ECU-CR.4	ECU-CR.8	ECU-CR.20
DI Digital Input	Highside switch	7	16	24
PI Pressure Input	4-20 mA with 24 V – supply or 0-10 V with 10 V – reference			16
PI Pressure Input	0-5 V with 5 V – reference	9	18
TI Temperature Input	PT100/200/1000 or thermocouple	7	14	48
SI Speed Input	< 10 kHz, hall- or inductive-sensor	2	6	6
AI Airmass Input	Bosch-sensor	1	1
LI Lambda Input	Bosch-sensor		1
DO Digital Output	< 1 A, highside	8	12	16
RO Relay Output	< 0,1 A, normally open			4
CO Current Output	< 2 A, regulated	4	4	5
AO Actuator Output	+/- 4 A		2	2
IO Injector Output	48/24 V, 25/10 A, regulated	4	8	22
SL Serial Link	RS422/485, isolated			1
CB CAN-Bus	ISO 11898, isolated	2	2	3
Sum		44	84	147
All inputs and outputs are overvoltage proof, polarity protected and short circuit proof!
Exemplary signal assignment, other configurations on demand!