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UMG 96RM-E
Phase sequence
Check the direction of the voltage rotating field
in the measured value display of the UMG 96RM-E.
A “right” rotating field usually exists.
Check phase assignment
The assignment of the outer conductors to the current
transformer is correct, if a current transformer is short
circuited on the secondary, and the current indicated
by the UMG 96RM-E drops to 0A in the corresponding
phase.
Checking the energy measurement
Short-circuit all current transformer outputs except for
one and check the displayed power outputs.
The UMG 96RM-E may only display one power output
in the phase with a non short-circuited current transformer
input. If this is not the case, check the connection
of the measuring-circuit voltage and the measuring-
circuit current.
If the power output amount is correct but the sign
of the power output is negative,
• S1(k) and S2(l) could be inverted at the current
transformer
• or they supply active energy back into the network.
Applying the residual current
Connect residual current transformer only to the I5
and I6 inputs with a rated current of 30mA! Both residual
current inputs can measure AC currents, pulsing direct
currents and DC currents.
Bearing in mind the current transformer conversion ratio,
the residual current displayed by the UMG96RM-E must
correspond with the input current.
The current transformer ratio is factory set to 5/5A
and must be adapted to the residual current transformer
used if necessary.
C
It is not necessary to configure a
connection schematic for residual current
inputs I5 and I6.
C
The UMG 96RM-E requires the mains
frequency to measure the residual
current. For this purpose, the measuring-
circuit voltage should be applied or a
fixed frequency should be set.
Summary of Contents for UMG 96 RM-E
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