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© Landis+Gyr AG
The installed meter should be put into service and checked as follows:
1. Close the jumpers of the voltage paths in the test terminal block with an
insulated screwdriver and re-insert the supply fuses.
2. Check on the display whether all three phases L1, L2 and L3 are indi-
cated and show the right phase sequence.
– If one phase is not present, the relevant symbol is absent. This is
also the case if the voltage is less than 20 V.
– With the normal phase sequence L1-L2-L3 the symbols are
displayed continuously.
– If, however, the meter is connected with reversed phase sequence
(e.g. L2-L1-L3) the symbols flash. The direction of field rotation
(clockwise or anticlockwise) is determined by the parameterisation.
This has no influence, however, on the measuring behaviour of the
meter.
Fig. 4.14
Phase sequence indication
3.
Open the short-circuit jumper of phase 1 in the test terminal block with
an insulated screwdriver.
4.
Check the display of the energy direction: +P to right, +Q up with
inductive load.
5.
Close the short-circuit jumper of phase 1 in the test terminal block
again with an insulated screwdriver.
6.
Repeat the same test for the other phases as in points 3 to 5.
7.
Then open the short-circuit jumpers of all phases in the test terminal
block with an insulated screwdriver.
Fig. 4.15
Test terminal blocks status after commissioning (terminal layout
according to DIN)
8.
Check whether the operating display appears correctly (no error
message).
9.
Further values can be checked in the service list obtained via the
service menu if parameterised: phase voltages, angles, currents, etc.
D000030110 d – E650 Series 3 (ZMD400AT/CT, ZFD400AT/CT) – User Manual
Installation and De-Installation
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