rest of sufficient duration to re-establish machine temperatures within 2 K of the
coolant temperature." (IEC 60034-1, chapter 4.2.2)
Eltorque actuators may be used classes A and B – 10 000 cycles per lifetime.
Endurance is defined according to EN 15714-2, chapter 4.1 and Annex A.
For classes A and B - ON/OFF operation and inching/positioning, endurance
defines the minimum number of cycles to be endured per life time, where "one
cycle consists of nominal 90°. angular travel in both directions (i.e. 90° to open +
90° to close), based on an average load of at least 30 % of the rated torque with
the ability to transmit 100 % of the rated torque for at least 5 % at each end of
travel, with a cumulative operating time not exceeding 15 minutes in one hour."
(EN 15714-2, chapter 4.1.2, b.)
For class B - inching/positioning, duty performance is defined as the minimum
number of starts per hour, where "one start consists of a movement of at least 1°
in either direction, with a load of at least 30 % of the rated torque.
The cyclic duration factor (i.e. the ratio between the running period and total
period) shall be not less than 25 % (e.g. 1 sec running and 3 sec resting)" (EN
15714-2, chapter 4.7.2.2, b.)
Shielded cables and appropriate cable glands should be used if the actuator is
installed near to or connected in the same network as equipment emitting high
levels of disturbances.
Figure 9: CANopen bus network
Note! Eltorque recommends a maximum of 80 nodes on 500 m/1660 ft cable.
Note! The cable between the nodes can be maximum 500m with bus speed with the
Eltorque Hybrid Marine Cable. For other data rates and cable lengths check with
Eltorque service department.
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