janitza UMG 604-PRO, User Manual And Technical Data

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UMG 604-PRO
www.janitza.de
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9. Commissioning
Before commissioning, clear any content
that may be present on the power meters,
min./max. values or recordings due to the
production process.
9. 1 Connecting the supply voltage
After connecting the supply voltage, the
text “Start up” is shown on the display.
Approximately two to six seconds later, the
device switches to the first measured value
indication.
If no display appears, check whether the
power supply voltage is within the rated
voltage range.
Fig.23.1 Example connection for the supply voltage Uh.
Supply voltage
(see rating plate)
9. 2 Frequency measurement
In order to measure the frequency, at least one
voltage measurement path (L-N) must have
a measured voltage of greater than 10 V.
Only detected frequencies in the range of
45 Hz to 65 Hz are used for measurement on
the current and voltage measurement inputs.
9. 3 Connecting the measured voltage
The device is suitable for measuring voltages
of up to 300VAC to earth and 520 V AC
phase to phase.
The device is not suitable for measuring DC
voltage. Voltages over 300 V AC to earth
must be connected via voltage transformers.
After connecting the measured voltages, the
measured values displayed by the device for
the L-N and L-L voltages must correspond to
those on the voltage measurement input.
If a voltage transformer factor is
programmed, it must be taken into
consideration for the comparison.
At least one phase (L) and the neutral
conductor (N) must be connected to the
voltage measurement input for measurement.
A measured voltage of greater than 10
Veff must be present on at least one of the
voltage measurement inputs so that the
device can determine the mains frequency.
L N
9. 4 Phase sequence
Check the direction of the rotating field
voltage in the measured value indication
of the device. A “right-hand” rotation field
usually exists.