Product Description
Page 24 of 92
User Manual QT250 and QT800 gen 2.5, ID 2021 2.3 20. April 2021
The cabling specifications depend on the type of communication interface to be
used.
The QT250 and QT800 control box have five threaded M20 holes for cable
glands. When ordering it is important to consider factors like cable type and size,
as the cable glands have a limited cable entry range. Eltorque standard cable
glands can accommodate a cable between 8-14 mm/0.32
–
0.55 in.
To maintain the Eltorque actuator’s IP encapsulation, it
is important to use the
correct rated cable glands, see
on page 19 and
section 4.5
on page 38.
The actuators have an EMC class A approval according to DNVGL
–
CG-0339
without the use of EMC glands. They are therefore by default delivered with non-
EMC glands. If you require EMC glands, please notify your sales contact when
ordering.
The default glands for the different communication interface boxes and ordering
information is given in Chapter 8.
If your actuator cannot be installed immediately, it must be stored it in a dry
place until you are ready to install and connect cables. The actuator does not
come prepared for long time outdoors storage when arriving from Eltorque.
Details on storage temperature are found in
parameters for QT250 and QT800 actuators
on page 19.
If the actuator can be mechanically installed, but not cabled, please ensure that
all glands and gland holes are thoroughly tightened to avoid ingress of moist.
The actuator
’
s IP rating is not valid until correctly installed.
Eltorque cannot accept responsibility for deterioration caused on site if the
actuator has been opened in ways not described as required in this manual. In
principle, the product should be powered within three years after production to
prevent components from derating. All actuators are thoroughly tested before
shipping to give trouble-free operation, if installed and commissioned properly.
Electrical installations shall be designed and installed by personnel with
certifications according to applicable laws and regulations. Ensure that all
such work is done according to applicable laws and regulations.
It important to consider the number of actuators in both the power loop and the
signal loop when using bus-based communication. The loop list should be
finalized and approved before installation of the cable is started.
In case of power loss, none of the actuators in that power loop can be remotely
operated. In case of a signal loss, none of the actuators on that signal loop can
be remotely operated. Manual operation is however possible in both scenarios.
With the Dual CAN and the Failsafe options the system security in case of a
power or signal loss is largely enhanced. More details are found in
on page 61 and in
on page 67.
Summary of Contents for QT250
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