User’s Manual 7M
26
DISPLAY OF DEVICE RESETS
Long-touch Reset, the sub-menu is entered (ESC, Energy counters, Reset alarm output).
RESETS
ESC
Energy
counters
Reset
alarm
output
<=
Main menu
ENERGY COUNTERS
Long-touch Energy counters to chose the counter to reset
(ESC, All energy counters, from energy counter C1 to C16).
Longtouch
ESC
to
return
to
the
Resets.
RESET ALARM OUTPUT
Long-touch the Reset alarm output to chose the alarm reset (ESC, no, yes).
Long-touchESC to return to Resets, long-touch No that the selected counter is not reset
or Yes to reset the selected counter.
INSTALLATION
Long-touch Installation to set the connection mode of the MID approved meter.
Long-touch ESC LCD returns to the Main menu.
The connection mode can be set only once. Until the connection mode is not set,
the warning screen appears every 5 seconds (Installation Not set).
Long-touch Connection mode setting menu is entered to select one of three options
(see
picture
below):
- 3L+N, 3L, L+N – Vector (Evaluation of the sum of phases),
- 3L+N, L+N – Arithmetic (Evaluation of individual phases),
- 3L-2I – Vector (Evaluation of the sum of phases).
Evaluation of individulal phases means that in case of opposite energy flow in different phases the energy is registered
to both import and export registers taking into accout each individual phase. It is applicable only in 4-wire connection.
Default value is the common three-phase 4-wire connection (3L+N) which enables also
single-phase measurement in L3 (L+N) and 3-system 3–wire connection (3L) with import
– export evaluation as the sum of phases.
Also this connection has to be confirmed to block further changes and after confirmation
the message Installation not set is switched off. In case 4-wire arithmetic mode with import-export evaluation for individual
phases or 3-wire 2-system connection are chosen the password DCBA has to be entered to allow the modification. In 3L-2I
connection the phase measurements are blocked on LCD while in 3L connection they are not automaticly blocked.
It is recommended to remove phase voltage and power measurements at Displayed measurement setting as these are not
relevant at 3-wire connection.
