7
Failure to observe the safety instructions can result in death, serious injury or
severe damage to equipment and other assets.
In commercial premises, the local accident prevention regulations must be
complied with (e.g. in Germany, the regulations of the German Social Accident
Insurance Institutions for electrical installations and equipment).
The safety of the system in which the PQC is incorporated is the responsibility
of the persons installing and operating the system.
For safety reasons and to retain conformity with product approval requirements
(CE marking), the user is not permitted to convert or otherwise modify the inst-
rument.
The instrument must always be handled with due care; if it is jolted, knocked or
dropped from even a low height, it will be damaged.
This operating manual may be changed without notification. Please consult our
website www.frako.com for the up-to-date version.
When work is carried out on the instrument terminals and connecting cables,
there is a risk of live components being touched inadvertently. The working
voltage may present a hazard to health or may even be life-threatening.
The risk to life and limb can be significantly reduced by observing the above
safety precautions.
The user must ensure that all operators are familiarized with this operating manual and follow it
·
at all times.
This operating manual must be read through carefully and completely before the instrument is
·
installed, connected, commissioned and operated. All actions taken must be in accordance
with this operating manual.
The operating manual must be held for future reference.
·
·
⚠
Wherever this symbol is shown, the documentation must be referred to.
1.3 Intended use
The PQC Power Quality Controller is intended for the following applications within the scope of
the technical data
[see Section 2, Technical data]
:
Control of reactive power in stages. Output relays (switched outputs, stages) are provided for
·
this purpose. Capacitors can be connected to these via current-amplifying electromechanical
devices (relays, contactors).
Measurement of data relevant to network power quality, such as voltage, current and fre-
·
quency, either in any desired phase
L1
or in all three phases
L1
,
L2
and
L3
, depending on the
instrument version
[see Section 2, Technical data]
; connection of an alarm contact rated within
the allowable limits for the electrical parameters
[see Section 2, Technical data].
The PQC is intended for installation in stationary, weather-protected control cabinets and enclo-
sures located indoors. Exposure to dampness is not permitted. The instrument is installed verti-
cally, usually on the outside of the control cabinet or enclosure, so that the controls and display
are accessible to the operator.
The USB port is a service interface provided solely for updating the PQC firmware. Users are not
permitted to use this USB port for any other purpose, and therefore must not connect any cable
or device to it. When the PQC is in operation, the USB port must not be touched. It is intended
for connecting a battery-powered notebook.
