janitza UMG507, Установка и первый запуск

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Apply measurement current
The UMG507 is designed for the connection
of ../1A and ../5A current transformers.
Only alternating currents can be measured
through the current measurement inputs,
not alternating currents. Current transformer
terminals must be earthed on the secondary
side.
Current transformers which are not loaded on
the secondary side can result in dangerous
contact voltages and must therefore be short-
circuited.
Connect the individual current transformers
to the UMG50 and compare the current dis-
played with the applied current. The current
displayed by the UMG507 must correspond
to the input current, taking into account the
current transformer transformation ratio.
The current transformer rator is set in the fac-
tory to 5/5A and may have to be adapted to
the current transformers used.
If the current transformer is short-circuited on
the secondary side, the UMG507 must display
approx. zero amperes in the corresponding
external conductor.
Install device
The UMG507 is intended for installation in
low-voltage distribution boards, in which maxi-
mum overvoltages in the overvoltage category
III occur.
It can be installed in any position. The en-
closed fixing branckets are to be used in the
front panels or switchgear cabinet doors.
Connect device
Apply supply voltage
The size of the measuring and operating volt-
age for the UMG507 is given on the rating
plate.
Measurement and operating voltages, which
do not correspond to the values given on the
rating plate, malfunctions and severe damage
to the device can result.
The wiring cables for the measuring voltages
to the UMG507 must be suitable for voltages
up to 300V to earth and 520V phase-to-phase.
After switching on the measuring and operat-
ing voltage specified on the rating plate of
the UMG507, all the segments appear in the
display. About two seconds later the UMG507
switches to the first measured value display.
If no display appears, check whether the op-
erating voltage lies within the nominal voltage
range.
Initial Startup
Apply measurement voltage
The UMG507 is suitable for the measurement
of voltages of up to 500VAC to earth and
870VAC phase-to-phase.
The UMG507 is not suitable for the measure-
ment of direct voltages. Voltages over 500VAC
to earth must be connected through voltage
transformers.
After connecting the measurement voltage,
the measured values for the voltages L-N
and L-L displayed by the UMG507 must be
compared with those at the voltage measure-
ment input. If a voltage transformer factor is
programmed, this must be taken into account
in the comparison.