Eltorque QT Series, Руководство пользователя

Страница: 25 / 88

User Manual QT series generation 2.5, ID 2021, rev 3.2, January 14, 2022 Page 25 of 88
The power consumption varies depending on whether the actuator is in
standby mode or is running, see product datasheet.
Eltorque actuators may be used according to IEC 60034-1 duty type S2.
Industrial Valves – Actuators, chapter 4.7:
For class A – ON/OFF operation, duty performance is defined as the
minimum number of cycles per hour, 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 4.7.2.2, a.).
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 s. running and 3 s. resting)
” (EN 15714-2,
chapter 4.7.2.2, b.)
For classes C and D – modulating and continuous modulating, 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 ” (EN 15714-2, chapter 4.7.2.2, c.).
Rotating electrical machines, chapter 4.2:
Duty type S2: “ Operation at a constant load for a given time, less than that
required to reach thermal equilibrium, followed by a time de-energized and
at 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 in 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 lifetime, 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,