Schematic diagram: MRG 512-PRO PQ Flex design
Settings, parametrisation and safety information apply in accordance with the
installation and operating instructions enclosed.
m
MRG 512-PRO PQ Flex
PE
N
L1
Spannungsmessung 1-4
Voltage Input 1-4
L2
Strommessung 1-4
Current Input 1-4
I
1
L3
Verbraucher
Loads
I
PE
I
DIFF
0-30
mA
RCM
Ether
net
10/100Base-T
RJ45
Switch
PC
PC
Versorgungsspannung
Auxiliary Supply
I
2
I
3
I
4
L
1
L
2
L
3
L
N
I
5
I
6
230 V
50 Hz
C
Please ensure the correct setting of the current transformer, check the performance
values of the individual phases - these must not possess any negative signs when
drawing energy. Also check the power factor for plausibility. Turn the current
transformer if necessary!
Up to 2 residual current
measurements can be selected!
c
Attention! Fatal hazard due to electrical energy:
High voltage spikes that are dangerous to touch can occur on current transformers
that are driven with open-circuit secondary windings! For this reason, never operate
current transformers with open-circuit secondary windings!
First connect the current transformer lines to the corresponding measurement case
inputs!
Technical data
Power supply
230 V, 50 Hz, 50 VA
Interface
Ethernet
Measurement inputs
See UMG 512-PRO operating instructions
Measurements
See UMG 512-PRO operating instructions
UPS buffering
Up to 3 h
Dimensions (L x W x H)
500 mm x 390 mm x 230 mm
Weight
14.2 kg
