18
= Key1
= Key 2
= Key 3
= Max. value or consumption = Min. value or supply
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Putting into service
The device should be put into service as follows:
1.
Install the device
.
The UMG505 is suitable for panel mounting in low
voltage switchgear, in which overvoltage in
overvoltage class III can appear at maxi-
mum.
Any mounting position is allowed.
To ensure safety and functionality of the UMG 505,
a protective wire connection is absolutely
necessary.
2.
Connect supply voltage Uh
.
The size of the supply voltage Uh for the UMG505
must match the description on type plate. If
supply voltage for alternating current voltage
AC and for direct current voltage DC are
given on type plate, the UMG505 can be
operated with one of these supply voltage by choice.
Connected supply voltage, which do not match the
type plate, can lead to malfunction or damage of the
device.
Between the inputs of the supply voltage Uh
(terminals 14,15) and ground (PE), a maximum
voltage of 300VAC may be attached. Higher voltage
between supply voltage and ground (PE) can dama-
ge the UMG 505.
To avoid overvoltage at supply voltage input, the
supply voltage should be earthed.
The cables for the supply voltage must be suitable
for rated voltage up to 300VAC against ground.
3. Program
current and voltage
transformers
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4. Connect
measurement voltage
.
The UMG505 is suitable for the measure-
ment of voltage up to 500VAC against
ground and 870VAC phase to phase.
The UMG505 is not suitable for the measu-
rement of direct current voltage. Voltage over
500VAC against ground must be connected via
voltage transformers.
For voltage measurement with two voltage transfor-
mers, „Aron Circuit“ must be entered within the con-
figuration of the UMG 505.
After the connection of the measurement voltage,
the indicated values for voltage L-N and L-L must
match the ones at measurement voltage input. If a
voltage transformer ratio is programmed, it has to
be respected during this comparison.
