Thomson
Thomson Electrak
®
MD Actuator - Installation Manual - 2020-02
19
CAN CAN Bus device in actuator or other equipment
R Resistor
4.6.12 Control option CNO
This document assumes the reader is familiar with the SAE J1939 standard. Terminology
from the standard is used, but not described in detail. See section 5 for information on the
CAN Bus operation and communication protocol.
4.6.12.1 General installation data
Voltage is to be directly connected to the actuator. All motion and protection on the CAN Bus option is
handled through the CAN messages including overload protection. Please see section 5 for more details
on the messages. The actuator can also be manually forced to extend by ap Vdc to pin 6 (violet
wire) and to retract by by ap Vdc to pin 5 (orange wire). When this is done the actuator will move
with its maximum allowed settings.
4.6.12.2 CAN Bus SAE J1939 installation data
Follow wiring guidelines per ISO-11898 Standard CAN 2.0B, Protocol SAE J1939. Proper termination
resistors (120 Ohm) should be placed in mating wire harness, see below. Please refer to section 5 for
more communication details.
CNO Control Option Specifications
Input voltage
MD12
MD24
[Vdc]
9 - 16
18 - 32
Max. actuator current draw
[A] see product label
Forced extension / retraction
input voltage
[Vdc]
9 - 32
Forced extension / retraction
input current
[mA]
6 -22
F Fuse
S1 Manual retraction switch (optional)
S2 Manual extension switch (optional)
CAN high
CAN low
address select 3
address select 1
address select 2
+ Vdc
- Vdc
red
black
white
blue
orange
violet
brown
grey
red/white
black/white
