MeCAN™
Mechanical Engine to CAN J1939 interface
Installation Instructions
Please read the following information before installing. A visual inspection of this product for damage during shipping is recommended before installation. It is your responsibility to ensure that qualified mechanical and electrical technicians install this product. If in doubt, please contact your local Murphy representative.
GENERAL INFORMATION
WARNING
BEFORE BEGINNING INSTALLATION OF THIS PRODUCT
Disconnect all electrical power to the machine
Make sure the machine cannot operate during installation
Follow all safety warnings of the machine manufacturer Read and follow all installation instructions
Description
MeCAN™ is a compact, encapsulated interface module that translates resistive sender, fault switch and speed signals into SAE J1939 CANbus data. MeCAN allows quick and simple integration of ‘mechanical’,
MeCAN has four inputs. Two inputs are for oil pressure and coolant temperature sensing, either by fault switches or resistive senders. One input is for engine speed sensing, using a magnetic pickup or charge alternator. Input signals are translated into SAE J1939 CANbus messages with appropriate PGN address, data scaling and transmission rate.
A fourth input is for the connection of a speed calibration potentiometer during setup mode only. DIP switches allow selection of normal/setup mode and two speed input ranges. An LED gives indication of operating mode and CANbus activity.
Two standard versions allow use with a speed input and either fault switches or Murphy ES series resistive senders:
part number model/description
79.70.0014
79.70.0020
Custom solutions are also available for
MeCAN is compact and light enough for inclusion in many wiring harnesses, but can also be surface mounted via four fixing holes. The case is fully sealed in epoxy resin for high impact and environmental resistance.
Product specification
power supply: | ||
| (79.70.0014) | (79.70.0020) |
operating voltage | 7 to 35 VDC | |
current consumption | 25mA (typ.) | |
Inputs: |
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max. operating range | ||
oil pressure, coolant temp | sender, Murphy | switch, closed to |
speed input | ES series | negative on fault |
10 – 60 VAC peak, | ||
| adjustable 10 – 180 pulses per rev | |
speed calibration | 0 – 5 kOhm potentiometer | |
output: |
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CANbus | SAE J1939 protocol, | |
| 120 Ohm terminating resistor fitted. | |
physical: |
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case material | ||
case dimensions (l x w x h) | 100 x 25 x 15 mm / 4.0 x 1.0 x 0.6 in | |
weight | approx. 60g / 0.13 lb | |
operating temperature | ||
environmental sealing | IP65 case (with DIP switch film | |
| intact), exposed lead ends | |
electromagnetic compatibility | 2004/108/EC | |
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