ABL METERL, Руководство по установке и настройке

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Mechanical and electrical installation 14
Selecting the connection mode
To ensure correct current measurement, a connection mode must also be selected and entered in the SYS menu
when setting up the energy meter (see “Setting up the energy meter” on page 19).
The following connection modes are supported by METERS | METERL.
Connection mode Description
ƒ
Name of the option in the
SYS
menu:
3P.n
ƒ
3 phases, 4 wires
ƒ
Connection of three current transformers via terminals
1
,
2
,
3
,
4
,
5
and
6
on the energy meter
ƒ
Power supply via screw terminals
7
,
8
,
9
and
!
on the ener-
gy meter, fuse protection
F
= 315 mA
ƒ
Name of the option in the
SYS
menu:
3P
ƒ
3 phases, 3 wires
ƒ
Connection of three current transformers on the energy meter via
terminals
1
,
2
,
3
,
4
,
5
and
6
on the energy meter
ƒ
Power supply via screw terminals
8
,
9
and
!
on the energy
meter, fuse protection
F
= 315 mA
L
ƒ
Name of the option in the SYS menu: 1P
ƒ
Single phase, 2 wires
ƒ
Connection of one current transformer via terminals
1
and
2
on
the energy meter
ƒ
Power supply via screw terminals
9
and
!
on the energy meter,
fuse protection
F
= 315 mA
WARNING!
Support for non-compatible connection modes
The energy meter supplied with METERS | METERL supports other connection types in principle, although these
are not required in practical use as a load management system. Therefore, always make sure that the energy me-
ter is set to the appropriate connection option in the SYS menu.
“Setting up the energy meter” on page 20
Installation guidelines
Depending on the type of current measurement (total or section current) and the connection mode selected, the fol-
lowing guidelines should be observed when installing the current transformers and the energy meter:
ƒ
Be sure to observe all local regulations for electrical installations, fire prevention and accident prevention.
ƒ
All guidelines for the installation of low-voltage systems in accordance with IEC 60364-1 and IEC 60364-5-52
apply.
ƒ
Depending on the type of current measurement, the cable type current transformers are attached to the individual
wires of the house supply line (total current measurement) or the sub-distribution unit for the building (section
current measurement).
ƒ
The cables for connecting the current transformers determine the maximum distance to the energy meter and thus
the position in the distribution box.
ƒ
Fused taps (F = 315 mA) must also be provided in the distribution box to supply power to the energy meter.