The total number of nodes in a ring configuration is less than with a bus
configuration.
Note! For the ring configuration, Eltorque recommends no more than 75 nodes on 500
m Hybrid marine cable.
Table 19: Cable requirements and recommendations for Dual CAN system
Maximum 500 m/1650 ft.
For other cable lengths and number of nodes contact your local
Eltorque representative and we will help you to get the correct set-up.
For Hybrid Marine cable nominal 120 Ω.
Both Dual CAN inputs on the actuator must be impedance matched to
the characteristic impedance of the cable used. When projected by
Eltorque this is handled by our project personnel.
The Dual CAN actuator is mounted and connected in the same way as the
standard actuators, see Chapter 4 Mounting and Installation on page 33. The
power connections are done in the same way as for the standard actuators, see
Figure 24: Power supply connection QT250 and QT800 on page 38.
Note! There must be a termination between pins 5 and 10 on the Dual CAN connector,
see Figure 39. The termination cable must be connected on all nodes in the ring.
If not connected the Dual CAN interfaces are unterminated, implying that the
impedance is not matched to the cable.
The Dual CAN actuators are delivered with two internal 120 Ω termination
resistors and the termination is set on the actuator by using a 0.75mm
2
wire and
connect pin 5 to pin 10 on the Dual CAN connector.
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